Summer CES: Commodore Software Comes Of Age
MPUTEPs
$3.00 September 1987
®
Issue 51, Vol. 5, No. 9 ISSN 0737-3716 02220
$4.25 Canada ■
FOR COMMODORE PERSONAL COMPUTER USERS • It
Also In This Issue: A New Column On GEOS
SPIus
The complete DOS Wedge, plus 16 new features. A powerful, customizable tool for the Commodore 64 with disk drive.
SpeedSort
Screen Dumps For The 126 Impossible Scroll
I
80-Column Magic For The 128 And More
Bee Zone
Collecting honey from bees was never this rewarding— or this risky. An action-
strategy game for the 64.
Screen Maker
Create custom screens the easy way with this fast, efficient program. Includes
a full palette of colors and characters. For the 64.
(<
Video Slide Show For The 128
Instantly display sequences of your hi-res artwork, text screens, or business
graphics with this versatile
Sub Attack
program.
■
■
Viet-™' at sea? Only if you outmaneuver your opponent and avoid deadly mines in this high speed, two-player battle for the Commodore 64.
■■■
U86O222O
6
BOREDOM KILLERS Games that TERMINATE boredom. And hold your attention hostage.
Alien fighterships exploding into flaming wreckage. Fire-breathing dragons
breathing down your neck. Suicide missions where the bad guy would rather die than give up. It's the kind of action you don't have to wait around for. And you can get it for less than you'd drop on a bad night at the arcade. Introducing AMAZING SOFTWARE from Electronic Arts..
ARCADE ACTION
3D GRAPHICS
SPECIAL EFFECTS
blows you away.
suck you in.
shock your senses.
Dragon's Lair1
If Singe [he dragon doesn't have Dirk for dinner, the Lizard King will. A spellbinding adaptation of the smash nit videodisc arcade game.
Dan Dare, Pilot of the Future"
Stomach-wrenching tension as you light your way to the evil Mekon.
It's a comic took come to life with arcade action that you control.
Delta Patrol Blast your way through a strange world ol animated aliens, foaming oceans, and solar fares. The future ol "shoot-em^ps."
Sanxlon'
Only courage and a strong thumb will get you to the Darkslde. High-speed 3>D action (ound only in the arcades, until now.
HOW TO ORDER: Visit your retailer or call SOO-245-4525 [CALIF 800-5 62-1112). Suggested retail price lor Dan Dare, Sanxlon, and DeBa lsS19.95. Dragon's Lair is $24.95. Direct orders add $3 shipping and handling. Or.send check or money order to: Electronic Arts Direct Sales, PO Box 7530, San Matao, CA. 94403. Dragon's Lair copyright 1983 Magicom Inc. All rights reserved.
ELECTRONIC ARTS*
DATA EAST BRINGS ARCADE REALISM HOME!
1
EXPRESS KAinilK" - Bandits have seized ihi-
Gold City Express. Rescue ilii: passengers, save the KAHAIT. CHAMP' - Pulim your black bell and
(run, 'lnd recapture Ihc looH For Commodore
Arlsgame to become the K.ir.ne Champ. Fur
Btunlru an ihi1 kayo, at you .mil your p.irtntT Kiiilih your way through UiGTHleMatatesonyDur quo>r for Ihv bi'll. ForConinu>dari*61 12S1". Appk" q II* Belles, and IBM n»Bcrtes,andIBM.
• li.illrn£i- your friend* or the ciimpuli'r Ihnni^h nine pktumqucwlllrigsInthl«tradingMaiwi
CimiiiiiHlinL1 W12H'" .ind Apple II" sories. C(iM\fA\nO"'AhkhOd
Kink-iiviTtvlirlmiiif; odds to defeat sdvandng
rebd inni'v! Aimed »i\\< only a maddne gun and
"■ hand gnmadra, you musl reach iho forinf.^. ¥t<;
C.iinmuil.nf(vt'l2H", rtprk'H' series, jnil IBM.
IKABJ WARtUOMS"* - Behind enemy lines,
hiutMI.i iv.irt.in- are your lactJia .is you .ind your * partnei 1 ■ ■ 11. ihrou>;li lluh jun^li^, rivers, ruins. ,ind uppdfllnB entrunchincntB in this Interactive
h
Witt? TAG TEAM WRESTLING" - Tiarmvork.ind
KUNG-FU MASTER— MAS - B.KHe Iheciil forces
'In ■ ■■ i 'i; Iho rr. ■ d .! 111j;ihr*-hi■* floors in Ihc wizard's Ihrough the B™ f.is 111- lii in ivsaii1 rr-itu1 IIilllu1 c.lplivc f.iir maiden. Fur CommiidiirrffllZH'" and Apple IP n'riKS. m.idi<K-M.'l2HrHa
3»plByer anodB liii. Pot Commodore 6^128!" BREAKTHRW" Your mlulon is to reMBVe Ihe eccnH lijilitiT plane RtoTen by hostik renegad^' LJbe your sophisticated assault vehicle '^ l^i'iik
^U-H.r'Mi^l
Thru each nl llu1 livu enemy strongholds. For Commodore W12N!"
DATA FAST USA, INC. -1711 NEEDLES DRIVE SAN IOSF.. CALIFORNIA 99111 (Am) ;W.-7(174. wliArAi'A4"! L'SA INC 'i OMMANDO, IKAkl IVAKWukv MdDHMC-FU U/STOt UFO UNDeEUCBWEFFOMCAPCOM ISA, 6NK COST . ANPIBKMfOHl'.Brs UH1MIIIKW AITII AMIHSM Atll Kl I.ISI1 Ml Fl TkAfH MAKKS HI HUIMUIKlHt Fl PCnMlMCS 1.111. AIYLb tOMI'UII KS. KK . AND IBM. KtM'trtiVFl V. •I1A1A1AS1SWIII-.IAKIS DIIKI Kl Sllll MISMA^ O\l.l hNIIKB^ MAM IM, A V \ S"TOSTfARD Rl I1AFA FAIT. V 11 W1V W. SA1HI.VI1.LI. M IV !hHbtYl
WE'VE BLOWN THE COMPETITI Up Periscope!, the new state of the ari in submarine simulation1 Blow Simulafon wMhon ond 3D
graphic technologies licensed liom SubLUblL.
ing the competition out of the water
with superior combat strategy and tactics courtesy of Captain John
Patten, USN (Ret.). With true animated 3D graphics courtesy of SubLOGIC. Up Periscope!, generations ahead of the pack!
- $29.95 -
Better Engineering at a Better Price
64-. 128 'Computers
Am soft
Compare hits for yourself! Rret
Suggested Retail Price
Fire 2
3 Dimensional Graphics
Fire 3
Number of Scenarios
Fire 4
Split-Screen Views
Fire 5
Up Periscope!
Silent Service
$29.95
S34.9S
Yea
No
6
3
Yea
No
Reality Levels
11
7
Fire 6
Radar Screen
Yei
No
Fire 7
Accu-Sound" realism
Yes
No
Fire 8
Torpedo Types
3
1
Fire 9
Auto or Manual Torpedo Launch
Yea
Yea
Fire 10
Tlme-Day-Month-Year Selection Capability
Yea
No
Fire 11
Zoom Feature
Map or
Map View
Ship Views
Only
Submarine Strategy & Tactics Manual by John Patten, Capt. USN
Yes
No
Fire 13
Auto-Load Feature on C128
Yes
No
Fire 14
Joystick Required
No
Yes
Fire 12
(Ret.)
RIGHT OUT OF THE WATER!
j â&#x2013; V-.'Ti-fSflH
ThunderChopper
See Your Dealer...
And don't forget ThunderChopper!
Or write or call for more information.
For true helicopter action and
Up Periscope! and Thunder Chopper are available on disk for
realism, nothing else even comes
the Commodore 64/128, Apple II,
close. ThunderChopper in
and IBM PC line of personal
corporates the most advanced
computers for the suggested retail
graphics, flight systems, and game-
price of $29.95. For direct orders
playing factors to provide a sensa
please specify which computer ver
tional balance of strategy and fun.
sion you want. Include S2.00 for shipping (outside U.S. $6.25) and specify UPS or first class mail
1 19B7 ActlonSoft Corporation
delivery. Visa. MasterCard,
30 graphics and special effect:, courtesy
SubLOGIC Corp.
American Express, and Diners Club
Commodore 64 and Commodore 12B are
charges accepted.
trademarks ol Commodore Electronics Lid. Apple II is a trademark ol Appls Computer, Inc.
IBM is a registered trademark of International Business Machines Corp.
.Son
Action
rjr.HiinAiioMi ahcad in oiFiATrnv action sorrwflnc
?O1 WEST5PRINGFIFLD AVENUE, SUITE 711
CHAMPAIGN. IL 618?0
1317) 3988380
STOP PLAYING AROUND WITH YOUR • II
1 sJy> Arto
sibilities for C64 'sand 128's.With
geoWriie, geoPaint, fast-loading diskTurho and support for nil G EO S ■ compal i ble a ppl ic at ions. *Also available for80col. CI28s.
WRITER'S
•<?
GEOS 559" The Graphic Environment Operating System thai opens up a whole universe of new pos
i
WORKSHOP $49."
All the GEOS-compatible tools a
FONTPMK1 $29." A collection of 20 more fonts
for use with GEOS applications. in various shapes and sizes for more expressive and creative
GEODEX $39."
writer needs, including geoWrite
The GEOS-compatible directory
features to justify, center, search
that allows you to create lists by
name, address, phone number,
etc. I ncludesjft-oMf! rt;e to custom
documents.
ize form letters and invitations. •Also available (or 80 col. Cl^H's.
2,0 with headers, footers and
iind replace text. Includes a 'lext Grabber (for converting from programs like Paper Clip), ReoMerge and LaserWriter printing capability.
■Also available (or 81)cot. C128s.
■<<
DESKPACK 1 $34." Four GEOS-coin patible appli cations: Graphics Grabber fur importing art from Print Shop™
Newsroom*1 and Print Master*1 graphics; Calendar; Icon Editor
and Mack Jack Dealer. ■Also available for 80 col. C128's.
GEOCALC $49?
The GEOS-COmpatiMe, numbercrunching spreadsheet for track ing and analyzing numerical data. Create your own formulas,
perform calculations (or any thing from simple geometry to "what if" cost projections.
GEOFILE $49* The GEOS-compatible database manager that sorts, edits and
prioritizes whatever data you feed it. You (ill out the "input form," specify your command,
and geol-ile Hikes it from there.
■Also available for 80 col. C128k
Sooner or later, you're going to discover that there's more to C64's and C128's than fun and games. You're going to discover power. Not the kind of power that blasts aliens out of the galaxy. But the kind that whips through boatloads of data in seconds. The kind that crunches numbers and drafts docu ments like child's play. The kind you find in GEOS.
♦Also available for 80 col. C12Hs.
GEOPRINT CABLE $39." Tht six-foot cable thai speeds up printing because it's paral
lel—not serial. Connects easily
to C64SJ and C128's with fewer wires and no interface box.
Every GEOS application can take C64's and C128's from "mastering the universe" to a university master's degree, with all kinds of advanced capabilities that function at hyperspeeds you never imagined possible. So if you're tired of toying with technology, try playing around with GEOS. Once you feel its power, you'll know that for anyone who still thinks Commodores are toys,
Berkeley the game's ove;
Softworks
The brightest minds are working at Berkeley. To order aril 1-H00-443-0100 ext. 234 (California residents add 7% sales tax.) S2.50 US/Sy.50 foreign for shippina and liandling. Allow six weeltB for delivery. i. I'niLM^ttf.r
.ml ]'ji*i
I. hjrup** |. V |i -Hi 11 —V-ain v-1 'I i
September 1987
features The Summer Consumer Electronics Show Keith Ferret! . .. COMDEX: The Amiga 500 Heads for Home Selby Bateman
16
*
20
*
40
64
41
64
Vol. 5, No. 9
reviews AtgeBlaster!
David and Robin Minnick
Where In the USA Is Carmen Sandtego? SpeedTerm 128
Neil Randall
Ervin Bobo
The Writing Adventure Create with Gariletd
David and Robin Minnick Neil Randall
41
128
42
64
43
64
29 30
64 64
33
64
53
*
35 46
64 128/64/+4/16
52
64
games Bee Zone Kevin Black and Michael Wiens Sub Attack Tai Bush
education/home applications Exercise Pacer Jon H. Tonaki Computing for Families: Dr. J's Bulletin Board
Fred D'lgnazio
programming Screen Maker
Clay R. Reed
BASIC for Beginners: Using RESTORE and TAB Larry Cotton ... Hints & Tips: Easy Character Movement Clifford Dedmore Machine Language for Beginners: Using ROM Richard Mansfield Power BASIC: DoublePrint Scott and Keith Elder Impossible Scroll J. Kelly Video Slide Show for the 128 Paul W. Carlson SpeedSort Kjeil Strand Program Appender Joseph R. Charnetski DOS Plus Michael J. Castor Screen Dump Set for the 128 John Muggins 80-Column Magic for the 128 Mark W. Pemburn
54
128/64
58
64
61
64
64
126 64
66
68
126/64/+4/16
70
64
74
128
76
128
departments The Editor's Notes Richard Mansfield Gazette Feedback Editors and Readers User Group Update Caroline D. Hanlon Simple Answers to Common Questions Tom R. Halfhill Horizons: How to Program Todd Heimarck The GEOS Column: Helpful Hints Chris T. Assetin . . . . Bug-Swatter Modifications and Corrections News & Products
6
*
10
*
60
*
44
*
56
64
57
64
77 92
* *
program listings COMPUTED Gazette Author's Guide How to Type In COMPUTEI's Gazette Programs The Automatic Proofreader MLX: Machine Language Entry Program for Commodore 64 and 128
106 107 108 109
Advertisers Index
116
12S/64/+4/16 128/64
•-General, 64=Commodore64, +4=Plus/4, 16-=Commodore 16. 128 = Commodore 128 pttblishciJ momWyl'v COMPUTE! ]'uWic,nim1s,Ini., 825 7li> Avenue, NeivYorl,, NY 10019 L"SA. Ph.inr. (212) 265-8360. Editorial offices are located at 32A Wai IVendover AveiHia, Greensboro, NC 274(lr>. Domesiic SubtClipUonj: 12 issues, $24. POSTMASTER: 6*tld jdd.es; diUlgt) In COMPUTE'S GAZETTE, P.O. Bo< 1IW57, D?i
Moincs. IA 50340- Second ila^s applicslion [unduly at Greensbomr NC 27403 and Jiidliional mailing ofQca& lintire contenis rtipvrifttli £>1987 H1 COMPUTE! Publication!, fnt. All riKhH irsened, ISSN 0737-3716.
COMPUTE! rublit'Tkon*, Int. it part ol ABC Coniumrr Maga/knrs, Inr., one oHhe AHC Publishing CompinJef: ABC Publishing. I'miilenE, Hubert d Uurlurv 1330 Avmu< ollhe
Anwnij*. Una lorl. Ufa loik 10019
There's been considerable press coverage lately of laser printers and desktop publishing. In fact, entire
magazines are now devoted to the subject. And, with their prices fall ing below £2,000 and poised to plunge even further, these new printers are threatening to become
the standard, replacing daisywheel and dot-matrix technology. With personal copiers as low as $500, there's no reason why we won't see laser printers selling at that price in
and you can quickly understand why, for most publications, typeset text is the preferred medium. Not only can you read it for longer peri ods of time without fatigue, you also can read it more quickly and more accurately. The distinction between mimeographed or photocopied,
typewriter-quality print and typeset
A laser printer produces text just a step below typeset quality. If you look closely at very large head
ser printers, it's helpful to consider
lines, you can see some ragged
the range of print quality avail
edges on curved letters such as s. But you do have to look closely. Currently popular laser printers feature 300-dot-per-inch resolu
through 27-pin dot-matrix, to type setting. Smudged, hazy mimeo graphs are simply difficult to read. The lines are thick, the space inside letters like e is often filled in, letters resemble each other, they lose their
tion. You'd be hard-pressed to tell
that smaller letters weren't typeset. Other benefits of laser printers are reminiscent of the advantages
individuality. As a result, you have
word processing offers over straight
to work sometimes to recognize the
typing-—far greater control over the
words on the page.
final result. For one thing, you can
A step up is typewritten text
create and insert graphics. Chang
made with clean keys and a good
ing fonts is as simple as inserting a
ribbon. But even here, the letters all
have similar shapes, are all equally
command code into a word proces sor document, just as you would
spaced apart (i takes up as much
when changing to italics.
room as w), and the reader is bur
change produces an entirely new
dened with less quickly recognized
set of differently designed charac
individual letters. We are forced to
slow down when reading typewrit
ters. Most laser printers come with several standard fonts built in, in
ten material because it, too, suffers
cluding a font which closely resem
from what in television sets would be called poor resolution. Daisywheel printers are simply typewrit
bles the letters on this page. They
A font
daisywheel's.
also include real italics, different sizes of letters, and special symbols. For example, if you were reproduc ing this page, you could create the ordinary text, then the lines at the top, and, finally, switch fonts and print the words editor's notes as
This magazine, like most maga zines and books, is typeset. If you
they appear above. Specialized fonts such as old English script or
take a close look at the letters, you'll see how much variety there is in the
foreign languages are also available as plug-in cartridges or on disk as
width of their lines, in their shapes,
downloadable software.
ers attached to computers. Dot-
matrix printers, even though they've become quite sophisticated, produce text that is fuzzier than a
sizes, and spacing. Add to this their COMPUTE! $ Gazelle
September 1987
copier. They can make the letters you write, the articles you send to Gazette, the papers you turn in to your teacher or boss look about as good as printing gets.
put on an ordinary TV and reading it on a high-resolution monitor.
able—from typed mimeographs,
pages per minute) and as quiet as a
tion between reading computer out
few computer owners will be able To understand the appeal of la
features and advantages of this new printing technology. Laser printers are also quick (an average of eight
print is quite similar to the distinc
a year or two. When that happens, to resist them.
6
high resolution, their crisp edges,
But we've only touched on the
Richard Mansfield Editorial Director
COMPUTE! Publications is seeking to fill the following
in-house editorial positions: Assistant Editor—Requires 2-4 years experience in writ ing and/or editing; under
graduate degree in journalism, English, technical field, or equivalent; extensive expe rience programming one of the Commodore microcomputers. Assistant Book Editor—Re quires knowledge of com puter programming. Under graduate degree in English or
related field. Two years writ ing and editing experience.
Assistant Features Editor—
Requires undergraduate de gree in journalism, English, or
related field. Three-five years experience in print journalism,
writing, editing, or combina tion. Background or expe rience in computer technology
desirable. Articulate, able to communicate effectively.
APPLE II
129.95 IBM PC/
ATARI 8-Hit
Compatible
COMMOWRE
comtovom
64/128
(H/I2H
Yrni love playing games, but sometimes you'd rather build
your own. There's a !ol of satisfaction in playing something you've personally created
Now you can with Wargame Construction Set" from SSI. This unique simulation lets you design and play a nearly
Ready to shift from construction to destruction? Try B-24? As a flight simulator, it lets you fly a World War 11 B-24
bomber. As ;i combat simulator, it lets you try to bomb Hitler's oil refineries in Ploesti, Rumania. Or got blown up trying.
limitless number of wargames
You command the lead B-24 Liberator which will determine the course of action for the 460ih
that are as simple or complex as
Bomber Group. But firsi, you must
you desire. Stan by drawing your own battlemaps, Place roads, rivers, bridges, woods, buildings
learn to fly this cantankerous
and mines in any arrangement
and scale you like. Fight four levels of combat, from man-to-man battles to large-scale strategic campaigns. Give your men and machines
different attributes such as unit type, weapon type anil firepower, movement and strength points,
You can create scenarios from any period of military history, from Ancient wars with spears and catapults to modern conflicts using state-of-the-ari missiles and tanks. Or you can forget about reality and create sword-and-sorcery fantasy adventures and science- fiction battles. If you gel tired of designing, we've thoughtfully provided eight ready-to-play games. Even these can he modified to suit your liking.
plane. Two simpler scenarios let
you hone your flying skills before you go on to ihe real thing: I1) liarrowing missions over the flak- and fighter-filled skies of Ploesti. Once you're In the air. your
first goal is to form up with your bomber group and race to the
fighter rendezvous points. Your escort fighters can only slay up for a limited time, so don't be late. If you gel hit, you'll have to decide whether to ball out or slick
it oiu and do your job — reducing I'loesti's total oil production below what was accomplished historically: If you succeed, you'il be told how much you would have shortened the war in Europe! STRATEGIC SIMULATIONS, INC.
I
10-iu N. Rengsiorff Avenue, Mountain View, C.\ JM043
(415)964-1353
STRATEGIC SIMULATIONS, INC. Look for these exciiing games at your local com pule r/sofnrare or game store today. AllSSIgames carry a "14-daysatisfaction oryour money back"
guarantee. Write or call for a free color catalog of our full line. If ilicre are no convenient stores near you, MSA and H/C hokk'nean order
hy calling loll-free KOO-443-0100, x335. Or send your check lo SSI M the address above. (CA residents, add applicahle salts lax.) Mease specify com
puter foimat and add $2.00 for shipping & handling © 19H? hy Sinkgit .■iinutailuu. Int ,U1 nghis r
COMPUTE! PublicationsJncdS One cf (16 A3C Publish ng Compan s
Publisher
Idmts A. Casella
Director of Advertising Sales
Peter lohnsmeyer
Editorial Director Managing Editor
Rklwrrl Mansfield Kathleen Mjriiriek
Advertising Director Production Coordinator
Bi-maril I, Iheobalri, ir. Kathleen Hanlon
Associate Publisher
Sol by Bateman
Customer Service Mj.na.ner Dealer Sales Supervisor
Diane Longo jose Cruz Cassandra Green
Editor, COMPUTE! & COMPUTERS GAZETTE Production Director
Lance EJko
Individual Order Supervisor
Tony Roberts
lames A. Casella, President
Torn H. Hatfhill
Richard Mansfield, Vice President, Editorial Director Richard J, Marino, Vice President, Advertising Sales
Editor, COMPUTED At.iri ST Disk & M.ii;.i/i!!i'
Editor, COMPUTE!* Apply Applications Magazine
Gregg Keizer
Features Editor
Keiih Ferrall
Tech nitjI Editor
Christopher M, Savine, Vice Presideni, Finance .*. Planning Menu Hi'rwm Weinsr, Vice Presideni, Production Editorial !!<> nil
Otlis R. Cowptr
Assistant Technical Editors
George Miller, Dale Me Bane, |im fuchs
Assislanl Editor, COMPUTE!'s Atari ST I )i-k & Magazine
Todd Heimarck
Assislant Editor, COMPUTE!
Rhetl Anderson
Assistant Editor
Infill Shadle
Pr«KraniniinK Supervisor Editorial Programmers
Palrick Rirrisli
Copy Editors
Richard Mansfield, Kathleen Martinet, Selby Bateraan, Lance Elko,
Tnm R. I lalfhill, Stephen Levy Robert Lock, Founder and Editorial Consultant COMPUTE! Publications, Inc publishes: COMPUTE!
Tirti Victor, lim Midkiff, William Chin
till Champion Editorial Assistant
Caroline Hsnlon
Submissions Reviewer
David Honsley
Programming Assistant
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Troy Tucker Debl Nash
Administrative Assistants
Julia Fleming Iris Brooks, Sybil
COMPUTE'S Atari ST Disk & Marine
324 Wesl Wendover Avlmiui', Suite 200. G teens boro, ,\C 2 74 0(5 USA
Corporate offices:
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Customer Service:
Associate Editurs
]im Bulterfiefd Toronto, Canada
10:00 AM-l2:30 PM; 1:30 l'M-:f:00 PM
Dealer Sales:
flO0-(>iil-IB2z [In NV 2)2-887-8566) 9 AM 5 PM Monday Irid.iy
Sales Representatives
lerry Thompson Lucille Dennis
Fred D'lynazio Birmingham, Al.
Tom Link Harry Blair
David Thombuig
415-.)48-H222 415-348-8222 212-3]5-lfjb5 919-275-9809
Address all advertising materials t»: Kathleen Hanlon, COMPUTFl's GAZETTE
Los Allos, CA Contributing Editor
800-346-6767 (In NY 212-887-0525) Monday ) Hday
A&ee Anil,! Armlield
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COMPUTES Apple Applications
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Art Direclor Assistant Art Direclor
linlce R, Fary Lee Noel
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De Potter
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The cOMPi/fETs CAZETif subscriber list is made available to tarefu% screened organizations with .1 product or service which may be of interest to our readers. If you prefer nm In receive such mailings, please surd an exact cony ot your subscription label Id; COMRfTErs GAZETTE, P.O. Bin 10958, Des Moines, IA
Commodore 64, Plus/4, 16, and 12U are trademarks oi Commodore Business Machines, Inc.. ,ind/or Commodore Bectronfa Umtted, Olhiv than as an
50950. Include a note Indii atFng yout preference in receive only your subscription.
8
COMPUTE'S Gazelle
August 1987
of programs published herein.
independent supplier of quality information End scrvil es to owners and users of Commodore products, COMPUTE! Publications, Inc., is in no way asso
ciated with Commodore Business Machine*, Inc., or any of its subsidiaries.
I G H T I ■
From the sophisticated realism, detail, and intellectual ji- ».-Va jr
stimulation of Flight Simulator.
11
i
11
m
*B-
aTVp^pi'tAi
.to the brute-force fun, thrills and excitement of Jet.
See Your Dealer. For additional product ordering information
or the name of the dealer nearest you, call (800) 637- 4983.
Corporation 713 Edgebrook Drive Champaign IL6182D C171 359-8)6?Telei 3MM1
H
ORDER LINE: (800) 637-4983 loxcopt m tBinois. Alasbn and Hnwimk
Open 7 AM 1o 9 PM Central Time
Editors and Readers
Do you have a question or a problem? Have you discovered something that could help other Commodore users? We want to hear from you. Write to
Gazette Feedback, COMPUTEfs Gazette,
P.O. Box 5406, Greensboro, NC 27403. We regret that, due to the volume of
mail received, we cannot respond indi vidually to programming questions.
Prize Winner Here is a letter we received from the grand prize winner of last year's Dream Computer Sweepstakes, a di rect-mail disk-subscription contest for subscribers of Can-tie and COMPUW. magazines. Karen Cleary, the winner, was awarded $3,000. For information on a new $5,000 Gazette sweepstakes, see page 101.
I want to thank you for having the
Sweepstakes contest. Needless to say, ] was more than a little surprised and elated. We had been talking about upgrading our home computer for
some time, but nothing substantial ever came of our talks until recently. We bought a Leading Edge Model D turbo with a 20-meg hard drive and an internal Hayes-compatible 1200baiid modem, and a Citizen MSP-10 printer for our work. Por the lighter side we bought an Atari 1040 ST. Thank you for making our "talk" a reality. Karen M. Cleary
A Supine Mouse Can an Atari trackball be used with CEOS instead of a mouse?
mouse, the Atari trackball also offers a true proportional mode, but it's different
enough that it doesn't operate with the mouse driver included with GEOS 1.3. Theoretically, a driver could be written to
allow trackballs to be used with GEOS,
underlined characters instead.
Pressing RUN/STOP-RESTORE turns off the custom characters. To turn
but we haven't seen one yet.
them back on, reenter the final line from the program above: POKE 53272, (PEEK (53272) AND 240) OR S.
Cursors, Foiled Again
programmable cursor. Press and release
i've never seen an article on the lowly
the ESCape key (don't hold it down) and then press the U key to switch to an un derline cursor. ESC-S sets it back to the block cursor. ESC-E disables cursor blink ing and ESC-F turns it back on.
cursor. How about a relocatable Ml. routine for the 64 that would replace the old, boxy cursor with a sleek, un
derline cursor? CHR$(164) would be
The 128's 80-column screen has a
perfect. William A. Jones
O/i the 64, the cursor isn't really a charac ter you can reprogram. When you press the cursor keys and watch the blinking cursor move to and fro, it might seem to be a character, like an A or a Z. It's not. Two memory locations keep track of the current cursor position (its column
and row). When the time comes to blink the cursor, the computer finds out which character occupies that particular screen location, and replaces the normal charac ter with the reversed character shape. A
little later, to turn off the cursor, the re versed character is replaced by the normal character shape. The system handles the cursor blinking by switching reversed and normal characters back and forth. To change the cursor to an underline,
it's necessary to replace the entire set of reversed characters with underlined char acters. Before running the following pro gram for the 64, you must enter POKE 642,48: SYS 58260â&#x20AC;&#x201D;this resets the be ginning of BASIC and prevents BASIC and the new character set from interfering
with each other.
Doing The Shuffle I am writing a program on the 64 that
deals a deck of cards. How do 1 ran domly choose cards, yet keep track of which ones 1 use? The cards are num
bered 0-9 with four colors. Monte Ohrt
With 10 cards (numbered 0-9) and four colors, your deck contains 40 cards. In the program below, the cards are numbered
0-39, where cards 0-9 are blue, 10-19 are red, and so on. To find the color, divide by 10 and use the INTeger value of the an
swer, which will range from 0 to 3. Then multiply that number by 10 and subtract it from the card number. For example, 24 divided by 70 is 2 (the color) with a re mainder of 4 (the face value). You may employ two techniques to make sure no cards are duplicated in a deal The first is to generate a random number, then look back at the previously
chosen cards to see whether that number has already been selected. This ii'orks well for a few cards. But as the list gets longer,
the chances of duplication greatly in crease. For example, if every card except the twenty-first has been picked, you have
D. W. MacNab
10
C1=8192:C2=9216:C3=10240
When mice first appeared as peripheral
:C4=11264
only a 2.5 percent chance (1 out of 40) that
20
POKE56333,127:POKE1,51
you'll randomly choose a 21. The double-
30
FORJ=0TO1023;UC=PEEK(532
40
48+J):LC=PEEK(55 296+J) POKEC1+J,UC:POKEC2+J,UC:
checking loop might have to repeat a few dozen times, which would slow down the program considerably. A second, and better, technique is to
devices, they ivere sometimes described as
being like upside-down trackballs. Since that time, mice have become popular and trackballs have faded from view. The answer to your question is a
qualified yes. Atari trackballs work in two different modes that can be selected with a
POKEC3+J,LC:POKEC4+J,LCi NEXT
50 60
POKE1,55:POKE56333,129 FORJ=C2+7TOC3STEPB:POKEJ , 2 55:POKEJ + 2048,255:tJEXT POKE53272,(PEEK(53272)AN
Stotlch on the bottom of the case. The first
70
can be used with CkOSâ&#x20AC;&#x201D;just use the joy
The price you pay far the underline cursor is that you lose the reversed char
mode emulates a joystick. So the trackball
stick driver. Like Commodore's new 1531 10
acter shapes. If you press CTRL-9 <RVS ONI and type some characters, you'll see
COMPUTEI's Gazette
September 1987
D240)OR8
create an array that's numbered 0-39.
Before the main part of the program be gins, initialize the array so that C(0) holds a 0, CIV holds a 1, C(2) holds a 2, and so on
up to C(3$), which holds a 39. Now you have a list of 40 numbers, and each card appears only once in the array. Before
ECHELON
3-D SPACE FLIGHT SIMULATOR ECHELON is a true 3-D space flight simulator tlial puts you at the conlrols of the C-104 Tomahawk and in Ihe heart ot theaclion You'll experience the excitement and thrill of real spacelltghi through superb Ihree dimensional graphics. But, before you go eiplonng on
HELON ... A top secret military facility where a
few highly skilled pilots will be trained lo operate Ihe 21st Century's most awesome combat and exploration vehicle, the Lockheed C-104 Tomahawk. The C-104 spacecraft has the latest in advanced instrumentation, weaponry, and control systems. ACTUAL C-E4 SCREENS
your own, il would be wise lo go through the careliiily designed
ITS IMPRESSIVE ATTRIBUTES INCLUDE - 4 Different "State-of-the-Art" Weapons Systems
- Bi-Directional Transporter Unit - Unmanned RPV (Remote Piloted Vehicle) Control - Anti-Gravity Braking and Hovering
training simulators. These rigorous courses will develop your skills in manuevering ihe spacecrarl. accurate selection and use of weapons, control ol RPV's. objecl reirieval and refuel and docking procedures Developing Ihese skills are essential to your survival when encountering hostile enemy spacecrafl or exploring unknown terrain. ECHELSi' is available now anO offers you Ihe Simulation Advenlureot a Liletime lor only $44.95.
- Forward and Reverse Thmsters ■ Twin 3-D Screens
- Real-Time Infrared Vector Graphics
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■ Computer Assisted Control Systems - Computer Information Data Link
- On Board Sub-Atomic Analyzer/Decoder
Available How For C-64/12E. Enhanced versions coming soon lor APPLE. IBM. AMIGA, ATARI ST. .■iid COMMODORE Mi.
■ Voice Activated Control Button
II you can't find our products at your local dealer, you can order direct. For mail orders, enclose check or money order,
plus 11.00 shipping and handling, and specify machine version desired. Order by phone on VISA. MasierCard or
C.0,0, by calling TOLL FREE (800) 824-2549.
ACCESS50FTTOWE.INC 2561 So 1560W WmdsCiKS, UTB4M7
dealing out the cards, shuffle the array by
CD 2020
FORZ = 0TO4:D=I!(Z,Y)sDS = INT(D/10):DC=D-DS*10:P
once you pick a number, it will never ap
MD
NEXTiNEXT:RETURN
randomly swapping cards. If you step through the list, you know in advance that pear again.
L(nes 20-40 initialize the arrays. The shuffling subroutine starts at line 1000.
BF
5
POKE53281,15
AR
10
DIMSS(3),C(39),H(4,1)
QD
15
Z=RND[-TI/113)
SG
20 K)RZ=0TO3:READft,QiS$(Z)=
BS
30
The printing routine starts at 2000. Line 70 deals the cards by copying numbers
CHRS(A)+CE!RS(B) :NEXT DftTft 31,193,28,211,5,218 ,144,216iREH
BLUE,SPADE,
RED,HEART,ETC.
Mf 40
FORZ=HTO39:C(Z)=Z;NKXTiR EH
INITIALIZE
ARRAY
KB
50
GOSUB1000IREM
SHUFPLE
GH
60
P=0:
THE
REM
ZERO
POINTE
R
RE 70 FORY=0TO4:FORZ=0TOlsH(Y, Z)=C(P):P=P+1:NEXT:NEXT: REM
MF
80
DEAL
TilE
CARDS
GOSUB2000;REM
iSPACEjCARDS
THE
AQ 85 GETA$iIFAS = ollTHEN85 KG
90
CX
100
IF P<25THEN70iREM
DON'T
(SPACE}SHIIFFLE GOTO SOs
REM
TIME
TO
SHU
FFLE
FB
1000
RINT,SS(DS);DC 2030
PRINT"!CLR}{GRN)SHUFFL
from the Q39) array to each of the two players' hands—the H(4,l) array. Players 0 and I are dealt 5 cards each. The deck is
reused until more than 25 cards have been dealt (line 90), after which the array is
shuffled again.
1010
FORY=0TO(RND(1)*5+1)tF ORZ=0TO39:A = INT(RNI)(1 )
AA
1020
•40)
T=C(A):C(A)=C(Z):C(Z)= T:REM
BR
1030
RS 2000 JE 2010
SWAP
TWO
CARDS
NEXT:NEXT:Ri:TURN
PRINT"{CLR]M; FORY=0TO1:PRINT"tPURl
!rvs)pij\ykr":Y
128 to provide an 80-column text mode.
An 80-column monitor must be used in order for you to be able to see the video output from the chip.
The two chips are not interchange
able, either electrically or logically. Even if you could manage to hook the chip up to your computer, you still couldn't use it be cause the operating system of the 64
doesn't contain the software that is needed to nccess the chip. The easiest way (and the only 128compatible way) to upgrade to 80 columns is to bun a 128.
Converting To 80 Columns? I have read that the 8563 video chip used in the 128 gives 80 columns of
Making Backups I subscribe to the GAZETTE Disk, and I
text. If I install this chip in my 64, will it have any effect on the graphics or on
am having a problem. 1 cannot seem to
difference other than when using word processors?
from the GAZETTE Disk to my own disks. 1 would appreciate any help you
the games my children play? Will 1 see a
If 1 can put this chip into my com puter, what chip will it replace?
ING . . . "
AP
The second video chip, the VDC (for mally designated the 8563), is used by the
Fred Occhiuto
The } 28 has two video chips. The first, the VIC chip, is similar to the chip that is used in the 64 (the 128's VIC chip has two extra registers). It is responsible for the graphics modes and 40-column text modes
that are so familiar to the users of 64s and 128s alike.
move machine language programs
could give me.
Robert M. O'Connor It's a good idea to make backup copies of the programs on the GAZETTE Disk. There arc several ways to do this. Recent ver
sions of the Test/Demo disk that comes with Commodore disk drives contain a program called "Unicopy," which can
copy any file from one disk to another. Similar programs are available commercially.
EXPERIENCE THE THRILL OF GAMBLING with VEGAS GAMBLER and VEGAS CRAPS, the sensational new releases from California Dreams. Feel Ihe excitement of your favorite games with VEGAS
GAMBLER'S slots, blackjack, poker, and roulette.
If you know the starting and ending addresses of the program (these can be found in the article which corresponds to
the program), you can load the program
from the GAZETTE Disk using the "MIX" machine language entry program in GA ZETTE, and then save it back out to anoth er disk. <S
Place your bets and throw the dice with VEGAS CRAPS, a true to life simulation of a casino craps table.
Play for fun or to sharpen your gambling skills. Be a winner! Pick up your copies today!
COMPUTED Gazette is look
ing for utilities, games, applications, educational pro
grams, and tutorial articles. If you've created a program that
you think other readers might enjoy or find useful, send it, on tape or disk, to: Submissions Reviewer COMPUTE! Publications P.O. Box 5406
Greensboro, NC 27403 Please enclose an SASE if you
wish to have the materials
California Dreams™
returned.
Ail Rlghls Roseived
*'!S87 Log-cai Design VAjflis. Inc. 780 Monlaguo Eipwy.. Siuto 403
Ssn Joso. CA B5I31 U.S.A (■108) «5r«45 IN EUflOPK (Geneva) Te> 02231 B7M
I^^^^^^H 12
COMPUTE'S Gazette
September 1987
Awu.ktrt- nan for C frl'129 and Alari SI icoloe A Soon to tut i
IBM PC. Apple n, and Amiga
Articles are reviewed within four weeks of submission.
INTRODUCING The Adventure-Simulation... Action, Role Play, Drama And Intrigue... MicroProse PRESENTS
From the award-winning
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and F-lSB&BUlE EAGLE
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C-64 graphics shown:
Join us, mate, for ;ui expedition into one of the most lilSCinating eras ofthis miilcnium! PIRATES!'uis on exciting new adventure-simulation that will ch;illenge your skills while it captures your imagination! You are cast in the leading role as privateer captain, Ciiss-ciOSSlng the Spanish Main, slipping into ports as needs or opportunities require but always relishing your return to the freedom of the open seas!
PIRATES!'" is a unique blend ofyour farorjte software gaming features all in one package. It weaves together the excitement of;ircade-style action, lliediallenge ofsimulation dedsionmaking, and die interactive storyline of a text-
adventure. And, in the standard of all MicroProse software, PIRATESr**js designed to give you hundreds of hours of stimulating game play!
Aciual screens may vary.
Pirates!™ features include: ™at *"™"a UB"v"" " ACTION.. ■ ship battles, land COMJUCStB, foxing, aix! sailing
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SEW EXPERIENCES.. .exploit aaos .1 map of tin: entire Caribbean
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MISC. HARDWARE Esses pwr supply lor C-64 Naverone 3 Slot expander
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CES:
Commodore Software Comes Of Age Keith Ferrell, Features Editor
Commodore was not in attendance at this year's Summer Consumer Elec tronics Show (CES) in early June, but many of its machines were on dis play, running many new, impressive programsâ&#x20AC;&#x201D;software that more than ever before exploits the capabilities of the Commodore 64 and 128. Whether for entertainment or productivity, software at this year's CES was perhaps more of a Commodore show than it has been in several seasons. The Summer Consumer Electronics (CES) in Chicago draws more 100,000 people for several days of manship, product announcements,
Show than sales hype
and hoopla, publicity, and predictionsâ&#x20AC;&#x201D; all of it aimed at showing distributors and retailers everything that's new in electronic products intended for the large consumer market.
CES is the place where trends can be spotted ahead of time and where you can
find the latest model digital televisions, compact disc players, telephones and an swering machines of every conceivable type, radios, recorders, clocks, calculators, and whatnot, all being displayed, demon strated, and promoted under one roof. It's quite a show.
Nowhere else can you find quite so clear a picture of just how important com puters and software are to the electronics
industry. At this year's summer CES, per
16
COMPUTE'S Gazette
September 1987
sonal computers and the software they run occupied almost 15 percent of the display space and captured an even larger percent age of the attendees' attention.
Where's Commodore?
Although Commodore elected not to ex
hibit at this Summer's Consumer Electronics Show, it had perhaps as many computers on display as anyone there. Commodore 64s and 128s could be found at virtually every software developer's
booth, running the latest entertainment, education, and productivity software. This year's crop of Commodore software in cludes flight simulators that fly higher, combat programs that fight harder, racing software that comes close to putting you behind an actual wheel, text and narrative games that really do have stories and char
acters, and productivity packages that turn the 64 into a powerful desktop publisher.
m
Subscribe to COMPUTEI's Gazette today
through this special introductory money-savir
offer, and you'll be getting a lot more than just another computer magazine. That's because each issue of COMPUTEI's Gazette comes complete with up to 20 alt-new, action-packed Subscribe now and you can de
steady supply of high quality, fun-filled programs for your Commodore computer programs like Disk Editor, Mini-Filer, Arcad. Baseball, Budget Planner, Sound Designer, SpeedScript, and hundreds of other educa tional, home finance and game progra entire family can use all year long.
The superb programs you'll find in each issue are worth much, mu low subscription price,
"'\''.'V,T"!!>!.:tSl:::::;
I11S ::■■■":''
jid there's more to COMPUTEI's Gazet! just exciting new programs. Month after
tonth, (he superb articles in COMPUTERS Ga zette deliver the latest inside word on every
thing from languages to interf programming to disk drives. Whether you're a novice or an expen enced user, COMPUTED Gazette is the
magazine for you. So subscribe today. Return te enclosed card or call 1-800-247-5470.
-...,.
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miMmAn----
ie of the ABC Publishing Companies
If attached order card is missing, write: COMPUTE !'s Gazelle RO. Box 10955, Des Moines, >A 50950
Wa
Here and there the same old rumors about the imminent demise
of the 64 or the 128 were overheard and, prompted by the corporate shakeup at Commodore just a few weeks before CES, there were even
a few rumors about the possible im minent demise of the company itself.
But Commodore—exhibiting in Atlanta at the Computer Dealers'
Exposition (COMDEX) the same
weekend—had a few surprises in store. A rush of relief raced through
CES when early word came from Atlanta of Commodore's bold stand for its new Amiga and of price cuts
on its PC compatible. (See "COM
DEX: The Amiga 500 Heads for Home," accompanying this article.)
And this relief was accompanied by an almost palpable sense of excite ment, a feeling that the company is moving again, a force once more ready to be reckoned with.
The 64 and 128? Neither ma chine was on view at Commodore's Atlanta display, but in view of an installed base of over seven million 64s and more than a million 128s, those Chicago rumors about an ear
ly demise evaporated quickly. Few
software developers, in fact, felt that anything could affect the 64rs position as the focus of the enter tainment software industry.
The 64 Forever
"Firebird will support the 64 until it dies," proclaimed Martin Davies, Firebird's president of North Amer ican Operations. "In fact, we'll con
tinue to support it after it dies—not that we think it ever will, And there's more to this than just the number of machines out there—
fact is, the 64 is a terrific machine to develop for." Davies, whose company has
achieved much success importing English programs such as Elite, feels that there remains a lot of potential for extending the capabilities of 64 software. "Part of this is the fact that
the English software industry is still cassette tape-oriented. Our writers
and developers have to learn how to compress their programs. That compression translates into com plex, detailed, fast programs for disk drives here." Equally enthusiastic about the 64's potential is Michael Harrison, communications director for Micro18
COMPUTERS Gazotle
September 1987
Prose, another successful software company. "We've reached the point where there's not only a large
base of installed machines, but also a big base of programming tech niques and abilities to draw from.
Certainly at MicroProse we're con
tinuing to focus all initial develop ment on the 64; then we'll adapt
the programs to other systems." There was an air of excitement at Epyx as well. The company feels that Commodore machines span
the spectrum of software users, and it is adjusting its marketing plans accordingly. "We've got a product
line that offers something for the first-time 64 user, for children, for budget-conscious buyers, and for the advanced, experienced gamer," said Bob Botch, vice president of Epyx. While Botch foresees a neck-
processing, page design and layout,
drawing, and importation of graph ics onto the printed page.
Games And Graphics
Software developers revealed an increasing determination to expand the 64's game capabilities, with ad
vances announced in every type of
entertainment product. One area that many develop ers see as an opportunity is the ad
dition of narrative structures to what would otherwise be arcade games. Michael Harrison of MicroProse noted that the company's games, such as the upcoming Pro ject Stealth Fighter flight simulator, would feature increasingly detailed mission scenarios, with the circum stances surrounding the missions
featured along with the mission ob
and-neck MS-DOS/Commodore
jectives. Closer to pure arcade ac
are not robbing the 64 base.
Airborne Ranger, which puts players in the position of a paratrooper dropped behind enemy lines on a dangerous mission.
software market perhaps as early as the fourth quarter of this year, he also perceives them as being differ ent markets—MS-DOS machines
A Productivity Machine
Perhaps nowhere was the contin
ued broadening of the 64's appeal more in evidence than at the Berke
ley Softworks booth. Having estab
lished GEOS as the standard
external operating system for the 64, the company further extended
that machine's usefulness with the introduction of geoPublish, a fullfeatured desktop programming ap
tion, the company announced
"We're also proud of Pirates, which is something new for us," Harrison said. The game recreates the Caribbean in the eighteenth century, the era of buccaneers,
combining arcade action with a menu-driven text adventure. To es cape indenture, you become a pi rate. The program features
arcadelike tests of navigation, fenc ing, and ship-to-ship combat.
plication for the 64. Brian Dougherty, Berkeley's
CEO, noted that the $69.95 pro gram achieves 80 to 90 percent of the functionality of such popular desktop publishing packages as Al dus' Pagemaker for the Macintosh and the IBM PC. geoPublish permits the format
ting of pages on the Commodore 64, so that users can create multiple
columns on multiple pages and the software will automatically align text in the selected column format. Font style and size are selected at
the keyboard, and text reconfigures itself to adjust for graphics or alter ations in layout.
Timeworks is another compa ny approaching desktop publishing
for the Commodore market. The Titneivorks Desktop Publisher offers
"WYSIWYG" (What-You-See-IsWhat-You-Get) capabilities in word
MicroProse's Pirates is a grapiiics-andtcxt arcade adventure for the 64.
Farther down the road for MicroProse is Red Storm Rising, the
software version of Tom Clancy's bestselling novel of a nonnuclear, European-theater war in the near
future. Clancy himself is participat ing in the design of the program,
which is expected to be released early in 1988.
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COMDEX:
The Amiga 500 Heads For Home Selby Bateman, Associate Publisher
§
When Commodore Business Machines introduced the 64 computer in 1982, the machine cost $600 without a monitor. Consumers had the chance to
buy a remarkable personal computer with some of the most advanced sound and graphics capabilities then available. As everyone knows, the 64 went on
to become a phenomenally successful personal com puter, with more than seven million sold. And it hasn't stopped yet. Now, five years later. Commodore has intro
duced another personal computer with state-of-the
art graphics and sound: the new Amiga 500. For just one hundred dollars more than the 64 originally cost, the Amiga 500 features a half-megabyte of memory (512Kâ&#x20AC;&#x201D;eight times the memory of the Commodore 64), a built-in disk drive, stereo sound, and superb color graphics. With that price and those capabilities, there's little doubt that the 500 is head ed directly for the same home market that has been so successful for the 64 and 128. That was the message Commodore made quite
clear at this summer's COMDEX in Atlanta. With a
COMPUTERS Guzotta
September 1gS7
large booth jammed full of the original Amiga 1000s
and the new 500s and powerhouse 2000s, Commo dore indicated its intentions to make the Amiga 500 the next Commodore 64. "With the acclaimed Amiga performance and the price point of $699, the A50D will aggressively drive the home market segment/' said Alfred Dun can, Commodore's new general manager. Commodore's future rests on the success of the Amiga family of computers. At the same time, the 64 and 128 machines continue to sell very well without the push provided by trade shows like CES and COMDEX. Therefore, Commodore decided against displaying its computers at CES and opted for a strong Amiga showing at COMDEX. Apparently, the decision was the right one. Commodore's booth was crowded with software developers showing a wealth of new Amiga prod ucts, and the mood was definitely upbeat as the ex hibitors contemplated Commodore's renewal of aggressive marketing aimed at both the home and business markets.
Commodore's exhibit booth at COMDEX in Atlanta was a
showcase jar both the new Amiga 500 and the new 2000 computers,
* Motorola 68000 microprocessor running at just over seven megahertz, the same chip foui d in
the Macintosh and the Atari ST computers. * Three custom chips, nicknamed Portia, Daph ne, and Agnes, for sound, input/output, memory
0 > Commodore
access, and animation and graphics.
* Four screen resolutions, ranging from 320 X 200 to 640 X 400, with the capacity to display 4096 colors simultaneously. * Four-voice, nine-octave stereo sound, with two RCA audio output jacks.
* A true multitasking operating system. * The Workbench icon-based user interface, with pull-down menus, screen windows, and multi ple screens.
The Amiga 500 comes with 512K of memory that can be expanded by the user to one megabyte with an optional expansion card. The 500 is also ex pandable up to nine megabytes of contiguous RAM. An 800K double-sided 3Vi-inch disk drive is built into the right side of the 500, and there's an expand ed keyboard with separate cursor and numeric key pads. The Kickstart 1.2 operating system, which on the 1000 is loaded from disk, is built into ROM on both the 500 and the 2000 Amigas. The 500, unlike the 1000, has industry standard RS232 serial and Centronics parallel ports, which permits the machine to use IBM PC modem and printer cables.
Amiga Evolution The original Amiga, dubbed the A1000, was intro duced during the summer of 1985 and was immedi ately recognized as a quantum leap forward in personal computers. During the next 18 months, the Amiga 1000 sold well, but not at the rate that many people had hoped. Some critics complained that the computer was priced too high ($1/295 for a 256K Amiga 1000 without monitoT), while others argued that it was too limited to make it in the business and vertical markets. This past spring, however, Com modore announced that two new Amigas, the 500 ($699 for 512K without monitor) and the 2000 ($1,995 for 1 megabyte and no monitor), would be introduced; the former aimed at the home market, and the latter directed toward business and vertical market applications such as desktop publishing and video production. For those not familiar with the Amigas, a few specifications will reveal just how versatile and powerful these machines are. The basks of the Amiga 500,1000, and 2000 computers are the same:
i Commodore hopes that its new Amiga 500 will be as successful a home computer as the Commodore 64.
The Professional 2000
While Commodore is betting that the Amiga 500's power and price will be too impressive for consum ers to resist, the company is looking to its new 2000 to break into a variety of different business and
COMPUJEi's Gatttut
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titling and graphics packages, color digitizers, MIDI (Musical Instrument Digital Interface) packages, computer-aided design software, and desktop pub
lishing programs seemed to be everywhere at the booth. One of the most remarkable aspects of Commo dore's strong COMDEX showing was that it came just over a month after the ouster of chief executive
officer Thomas Rattigan, along with a number of high-ranking officers in U.S. operations such as North American general manager Nigel Shepherd, However, under the direction of Commodore Inter national Chairman Irving Gould, the new team headed by general manager Alfred Duncan and new general sales manager Richard Mclntyre has moved aggressively to bring Amiga sales in the U.S. up to the levels of success the machine already enjoys in Europe.
Commodore's Compatibles
While the Amigas are clearly the future of Commo The expandable, multitasking Amiga 2000 can run IBM PC
software and Amiga softwareâ&#x20AC;&#x201D;simultaneously.
dore, the company has also jumped into the IBM PC-compatibles market with its PC10-1 and PC10-2 computers. The company cut the prices of both ma chines, and is bundling Borland's popular Sidekick
specialty markets because of its expandability, pow er, and IBM PC compatibility.
The 2000 comes with a minimum of one mega byte of memory that's expandable to nine. What real ly sets it apart, however, is its seven full-size internal expansion slots configured for either Amiga or stan dard PC/XT/AT cards. With the optional Bridgecard mounted inside, the Amiga 2000 is able to run IBM software at the same time it's running Amiga pro
desktop accessory program with each PC. The PC10-1 comes with 512K RAM (expand able to 640K), a 360K disk drive, five expansion slots, MS-DOS 3.2, and either a monochrome or color monitor. The PC10-2 has 640K of memory and two disk drives. Commodore cut its prices by a couple hundred
dollars, putting the PC10-1 at $799.95 with mono chrome monitor, and at $999.95 with color monitor.
comes with a video expansion slot, another expan
The PC10-2 with mono monitor costs $899.95; with color monitor, the cost is $1,099.95. The Commo
sion slot for a 68020 microprocessor and/or a math
dore systems are not sold without monitors.
grams, with no loss of speed. The machine also
coprocessor chip, and the industry-standard serial
and parallel ports. The front section of the 2000's sys tem box has space for an additional half-height PCcompatible 5'A-inch disk drive and two 3'/i-inch drives, or you can configure the drive options in any combination of floppy and hard drive setups. With all three of the Amiga computers at COM DEX, the Commodore booth was a sound and light show all by itself. Color video programs, television
Strategic Simulations (SSI) is
also translating established works into software. SSI announced an
Although Commodore hopes to gain a percent
age of the lucrative MS-DOS market here with the POO systems, the company is obviously position ing itself for the long haul with its Amiga family. For that reason, Commodore didn't use any space at COMDEX trying to showcase the PC10 or the 64 and 128. Based on reactions among show attendees to Commodore's Amiga marketing strategy, the new formula seems to be working.
the next election.
450 objects that players can manip-
Maniac Mansion, developed for
ulate, the game adds ''cut scenes"â&#x20AC;&#x201D;random inserts that are
agreement with TSR to produce
Activision by Lucasfilm Games, brings new life to the hoary old
software versions of that compa
mad scientist's mansion. When you
contribute additional humor to the
ny's popular Dungeons and Drag
start playing this game, the scientist
ons games. The first Dungeons and
has kidnapped your friend, and
scenario as well as give Maniac Mansion more of the feel of a teen
Dragons software is due in the
players must assemble a team of
agers -versus- the-m ad-scientist
spring of 1988. And SSI is already
stout-hearted teens to penetrate the
movie.
prepared for the election year: With
mansion and rescue the hapless
President Elect, SSI has updated this popular simulation to include vari ables and circumstances specific to
victim. To its joystick-driven text
interface, and detailed graphics of
Teenagers were much on the minds of designers at Epyx as well. In a booth that could have passed
more than 50 rooms with close to
for a surf shack at Malibu, the com-
24
COMPUTEl's Gazette
September 198?
not player-controlled, designed to
pany unveiled California Games, the
Play Ball!
well as information about a number
toss, roller skating, and footbag
Sports enthusiasts were targeted by several software manufacturers of fering new baseball, football, bas ketball, and ice hockey programs. NBA, from Avalon Hill, is both an animated and a statistical bas ketball simulation. The game con tains outstanding teams and athletes from the past two decades,
bouncing.
permitting players to recreate great
latest addition to its very successful World Games series. This time, though, the competitions are not quite as serious as in World Games, California Games gives players the
chance to test their skills at halfpipe skateboarding, BMX stunt bi cycle riding, surfing, flying disc
games from the past, or to arrange
Space: The Software Frontier
Epyx also announced the latest in its Masters collection for advanced gamers. With Omnicron Conspiracy, Epyx moves to the distant future and the farthest reaches of interstel lar space, making the player an extraplanetary detective charged with unravelling the mystery surround ing the disappearance of a starship. The icon and joystick-driven game includes resources such as a worldsized computer and a race of psychics.
Closer to the present is Elec tronic Arts' EOS: Earth Orbit Sta
tions. This simulation, based on NASA's projections for the next half-century in space, charges play ers with expanding earth's ability to accomplish various profitable tasks in orbit. Those tasks vary widely, but must be done on time and with in budget. Successful players can
continue to expand their holdings, spreading commerce throughout the solar system, reaping further profits by exploiting the character
istics of the various bodies in orbit around the sun.
One space program that draws on the past rather than the future is
Accolade's Apollo 18: Mission to the Moon, which permits players to re create any of NASA's original lunar missions, or to configure missions of their own. A player is both mis sion-control supervisor and astro
naut, requiring mastery of tasks and skills specific to each position. With Test Drive, Accolade moves from spaceways to high ways, giving Commodore 64 and
128 users the chance to sit behind the wheels of a Ferrari Testarosa, a Lamborghini Countach, a Lotus Es prit Turbo, and other high-speed,
high-performance sports cars. Each car possesses specific characteris
confrontations that "might have been." Avalon Hill also announced
its General Manager disk, an add-on to the company's popular Super
Sunday football simulation. The new disk expands and enhances the
of other Commodore 64 and 128 software packages announced at CES.
Accolade. Test Drive and Apol lo 18: Mission to the Moon, both mentioned above, will be available for the Commodore 64 at $29.95 each.
Sigma 7 is the company's latest addition to its midprice Advantage line. An arcade-style space game,
Sigma 7 is available for the Commo
dore 64 at a suggested retail price of $14.95. Accolade, 20813 Stevens Creek Blvd., Cupertino, CA 05014
managerial abilities of Super Sunday players. Earl Weaver Baseball (an
nounced for the Amiga at January CES, but now available for the 64}
is the inaugural issue in Electronic Arts' new Sports Legends line.
Drawing upon the expertise of the former Baltimore Orioles manager, Earl Weaver Baseball also provides
both arcade-style play, and strate gic/statistical play. It is up to the player to pick lineups and assemble teams to face some of baseball's
Apollo 18: Mission to the Moon, from Accolade, recreates the moon missions of
most legendary managers and
the 1960s.
rosters.
Epyx moves baseball away from the major stadiums and onto vacant lots with Street Sports Base
ball, the first in a new line of Street Sports games. Incorporating sandlot obstacles such as stumps and gar bage cans. Street Sports Baseball teams are composed of a variety of
characters, each with a different level of skill. During play, the game also provides a
split-screen
view
that shows both ground-level and aerial pictures of the action.
Mindscape's Superstar Ice
Activision. At CES, Activision announced several new programs for the 64, including Maniac Man sion, an animated comedy adven
ture developed with Lucasfilm; The Last Ninja, a martial-arts program scheduled for fall release that fea tures more than 130 screens of three-dimensional color graphics and more than 1000 moving ob
jects; and Top Fuel Eliminator, a col orful, fast-action drag-racing game. Activision, 2350 Bayshore Pkwy., Mountain View, CA 94043
Hockey features a variety of real-life aspectsâ&#x20AC;&#x201D;including aging playersâ&#x20AC;&#x201D; in its hockey simulation. Designed for one or two players, Superstar Ice
Hockey puts players both on the ice as centers and goalies and behind the bench as managers seeking to strengthen a team. The game in cludes a training camp to which players can be sent to sharpen their skills.
Coming Through
Recovering the Scrolls of Wisdom is
tics, ranging from acceleration to
For Commodore
the effect of lateral G forces, which
Here are details about the Commo
martial-arts action game from Activision
are recreated in the software.
dore programs mentioned above, as
for the 64.
your quest hi The Last Ninja, a
COMPUTED Gazette
September 19B7
25
Avalon Hill. Priced at $30 for the Commodore 64, Darkhorn pro vides both strategic and arcade ac tion in a high-fantasy setting as up
to four players challenge the Darklord's dominance of the world. As noted earlier, Avalon Hill's
NBA is an animated, statistical bas ketball package that provides play ers with the chance to recreate 20 historical teams, with rosters in cluding Larry Bird, Wilt Chamber lain, Michael Jordan, and Bob Cousey. The game can be played solitaire, two-person, or in autoplay mode. It is available for the Com modore 64 for $39.95. The Avalon Hill Game Co., 4517 Hartford Rd., Baltimore, MD 21214 Berkeley Softworks. In addi tion to gcoPublish, mentioned earli
er, the folks at Berkeley announced geoProgrammer, a full-featured ap
plication development package for GEOS users with a good under standing of 6502 assembly lan guage. Both are scheduled for fall release.
The $69.95 geoPublish soft ware permits the creation of cus
tomized master pages of graphics and text that can be used on each page of a document and can be loaded from a library or saved for later use. Layout is carried out by defining rectangular regions on each page, which will automatically
reformat as the user needs to modi
fy the layout. Text automatically flows around graphics. An on screen toolbox contains graphics tools, and there are additional type
fonts for headlines up to a size of 48 points. All pages can be previewed
before printing, and the finished documents can be printed on any GEOS-compatible printer. A special
PostScript driver allows printers like
// available for the Commodore 64
attracted a lot of CES attention with
in one package for $29.95.
the introduction of California Games
The company is also reducing prices on a number of its older packages and pricing them in its new line of Value Priced Software.
(see above). The game will be re leased for the Commodore 64 in the third quarter of 1987. Street Sports Baseball (see
Arcade games such as Lode Runner
above) will be available for the
and Choplifter! and productivity software such as Bank Street Speller and Bank Street Mailer are being of
Commodore 64 at a price that's to
fered at prices ranging from $14.95
mentioned earlier, will be available
to $29.95.
in the fall for Commodore.
Broderbund Software, 17 Paul Dr., San Rafael, CA 94903 Constellation Software. In addition to a growing line of budget
(about $9.95) entertainment soft ware for the Commodore 64, Con stellation Software has announced Quiet Riot: The Silencer, an ear phone system for Commodore computers, including the Amiga. The earphones are being advertised as "Mom's Delight." Constellation Software, 1300 N. Hagan St., Champaign, IL 61820 Electronic Arts. Electronic Arts is introducing a number of new
products, ranging from entertain ment software to personal-produc tivity packages, with several programs for the Commodore 64. New entertainment software
for the 64 includes the fantasy ad venture game Legacy of the Ancients ($29.95) and a strategic space simu lation, EOS: Earth Orbit Station ($34.95). A new typing tutor program
for the 64 has been announced by EA—Mavis Beacon Teaches Typing, a graphics-intensive tutor for peo ple of all ages ($39.95).
Electronic Arts, 1820 Gateway Dr., San Mateo, CA 94404 Epyx. Building on the success
of their World Games series, Epyx
the Apple LaserWriter to produce geoProgrammer, also $69.95,
Broderbund. BrBderbund is making the bestselling British ar cade games Cauldron and Cauldron 26
COMPUTERS Gazs/fH
September 1987
Epyx's new midprice line,
Maxx-Out, will be launched with three packages, including Rad War rior, Boulder Dash Construction Kit, and Spy Vs. Spy III: Arctic Antics. Rad Warrior challenges players to destroy an alien invader in a radio active world of the future; Boulder Dash Construction Kit permits users to customize their own tunnels,
caves, and treasures; and Spy Vs. Spy: Arctic Antics pits the familiar spies against each other and a fro zen backdrop.
Epyx, 600 Galveston Dr., Red wood City, CA 94063 Firebird. Knight Ore puts play ers in the role of an ore, a mythical bird which, in this scenario, is op pressed by evil humans. The game is illustrated, possesses a 1000word vocabulary, and is scheduled
for release in late summer for Com modore machines, with a suggested
retail price of $39.95. Martial arts is the promise of Firebird's Golden Path, in which players take the part of a wise man who must overcome obstacles and challenges while on a mystical quest. Clues to help the player
solve the game's central puzzle are delivered in an onscreen window
that appears as a book of lore. This will be released for the 64 at a later date.
The Advanced OCP Art Studio is
near-typeset documents.
contains three functions: geoAssembter, geoLinker, andgeoDebugger. The geoWrite word processor is used as the editor for the assembler. Other GEOS programs include geoFile, geoCalc, Writer's Workshop, DeskPack I, FontPack I, and geoDex. Berkeley Softworks, 2150 Shattuck, Avc., Berkeley, C4 94704
be announced. Omnicron Conspiracy, also
a graphics program that provides •CMUS KtlWEfS
fldti sib nor
users with 16 pens, 16 user-defin able brushes, eight random sprays,
■
and three levels of zoom and mag nification It also provides a font edi tor, rotation and enlargement
capability, cut and paste, and other graphics/desktop publishing op
tions. The program will be available for $39.95 in Commodore format. Firebird Licensees, P.O. Box 49, Epyx's Street Sports Baseball puts you cm the street in a fast-action baseball Rome.
Ramsey, Nj 07446 Cessler Educational Soft ware. With Battle of Words, avail-
able in French, German, and Spanish, Gessler offers a five-part arcade-style program aimed at in
SX64 computers. Inkwell Systems, P.O. Box 85152 MB290, 5710 Ruffin Rd., San Diego,
creasing student vocabulary and
CA 92138
speed of translation. Priced at $49.95, the program is available for the Commodore 64.
French Micro Scrabble adapts the classic word-building game for competition in French either against the computer's 20,000word vocabulary or against other players. The game is available for $39.95 for the Commodore 64.
Gessler Educational Software, 900 Broadway, New York, NY 10003 Hi Tech Expressions. Hi Tech has introduced AivardWare, a $14.95 design and printing package for the creation of awards, certifi cates, letterheads, ribbons, tickets, coupons, checks, and other printed items. The program has 20 graph ics, 20 graphic borders, unlimited text borders, five seals, and five fonts. A dot-matrix printer is required. Hi Tech Expressions, 1700 N.W.
65th Ave., Suite 9, Plantation, FL
MicroProse. Pirates, an adven ture/simulation game for the Com
modore 64 mentioned earlier, is the latest creation by Sid Meier, design er of such software
hits as F-15
Strike Eagle and Silent Service. Stateof-the-art graphics and player-se lected scenarios are a couple of the features of Pirates.
having to add separate interface modules. The printer supports all Commodore and Epson control
codes, insuring compatibility with all major software packages for the home. The 180 has print speeds of 180 characters per second (cps) in
draft mode, 120 cps in utility mode, and 30 cps in near-letter-quality mode. Okidata, 532 Fellowship Rd., Mount Laurel, Nj 08054 Paragon Software. Paragon
Other new Commodore 64
Software's first entertainment
products include Project Stealth Fighter ($39.95), a flight and com bat simulator based on the supersecret new Air Force aircraft that evades detection; and Airborne Ranger ($34.95), an arcade game in
action game available this fal! for the Commodore 64 ($29.95).
package, Master Ninjtti Shadow War rior of Death, is a graphics-intensive
The company also has an ac counting package for the Commo
which players take the role of a
dore 128, Cash In-Cash Out
Ranger behind enemy lines. Both products are scheduled for a latesummer to fall release.
($69.95), and plans to have more
MicroProse Software, 120 Lakefront Dr., Hunt Valley, MD 21030
Mindscape. Among a number of new programs introduced at
computer games available in late
1987 and early 1988. Paragon Software, Plymouth Center,
521
Plymouth
St.,
Greens-
burg, PA 15601 QuantumLink. This Commo
Infocom. Stationfall is a sequel to the popular Planetfall comic text
CES, Mindscape has two games for the Commodore 64: Into the Eagle's Nest is a World War II combat ar cade game with exceptional graph
dore 64-specific telecommunica tions service announced the introduction of four multiplayer ca sino games that will allow people
adventure, both created by Steve
ics ($29.95), and Bop'n Rumble
across the country to play against
33313
Meretzky (who also collaborated
with Douglas Adams for the Info com hit, Hitchhiker's Guide to the Galaxy). The Lurking Horror, Info-
coin's first venture into interactive horror fiction, is a fearful cross be tween Stephen King and H. P. Love-
craft that was designed by Dave Lebling (coauthor of the ZORK se ries). Both will be available for the Commodore 64. Infocom, 125 CambridgePark
Dr., Cambridge, MA 02140 Inkwell Systems. The makers
of the Flexidraw high-resolution graphics program (recently en hanced in Version 5.5) for Commo
($29.95) is a comic action game in which you save all the grannies
from the vicious elements in the city.
Mindscape, 3444 Dundee Rd., Northbrook, IL 60062
Okidata. Okidata announced a universally compatible dot-matrix
printer, the Okidata 180, designed for either home or office use, with a suggested retail price of $329. With
standard Commodore serial and Centronics parallel interfaces, the Okidata 180 is compatible with all the major personal computers available to home users, without
use of a Commodore 64 or 128 computer, modem, telephone, and QuantumLink service. They will be available this fall at $14.95 for the disk, and include blackjack, poker, bingo, and slot machines. QuantumLink, 8620 Westwood Center Dr., Vienna, VA 22180
SSI. Strategic Simulations an nounced the release of President Electâ&#x20AC;&#x201D;1988 Edition, mentioned ear lier, a $24.95 strategic simulation game of presidential politics for the Commodore 64. A previous version
the 1984 presidential race, and the current game lets you make a con test of every bout for the top spot
availability of two new light pens:
the model 170-C ($99.95), a new version of the industrial-quality light pen Inkwell has up to now bundled with the Flexidraw graph ics program; and the model 184-C
from 1960 through 1988. Owners of the original version can receive
the new game for just $10 plus $2 shipping and handling by sending
($59.95), a new light pen featuring
gonomic design. Both light pens are
packaged on one disk, require the
of this game was released prior to
dore 64 computers, announced the
surface-mount technology, twotouch surface switches, and an er-
one another. The four games, which are
in the old disk. The new S329 Okidata ISO printer is
designed to be plug-compatible
compatible with all major personal com puter systems, including the Commodore
with the Commodore 64, 128, and
64 and 128 computers.
SSI is also introducing B-24 for the Commodore 64, a $34.95 flight and combat simulator; Rebel Charge at Chickamauga ($49.95), a simulaCOMPUTEls Gazette
September 1987
27
tion of one of the South's major of
fensives during the Civi! War; and The Eternal Dagger ($39.95), a se quel to SSI's popular Wizard's
Crown fantasy adventure game. SSI, 1046 N. Rengstorff Ave., Mountain View, CA 94043 Three-Sixty. This new com puter games company, founded by
BACKUP PROTECTED SOFTWARE FAST. From Ihe learn who brought you
Copy II Plus (Apple), Copy II PC (IBM) and Copy II Mac (Macintosh) comes a revolutionary new copy program for the Commodore 64/128 computers. • Copies many protected programs—automatically. (We update Copy II64/128 regularly to handle new protections; you as a registered owner may update at any time (or $15 plus $3 s/h.)
• Copies even protected disks in under 2 minutes (single drive).
• Copies even protected disks in under 1 minute (dual drive). • Maximum of four disk swaps on a single drive.
• Includes fast loader, 12-second format.
Requires a Commodore 64 or 128 computer with one or two 1541 or 1571 drives. Call 503/244-5782, M-F, 8-5
(West Coast time) with your ^£ ${
intosh form from Silicon Beach
overseas.
programs available.
Software, will be among the first
$39.95
Three-Sixty, 2105 South Bascom
Ave., Campbell, CA 95008
Central Point Software, Inc. 9700 S.W. Capitol Hwy. #100 Portland. OR 97219
Thunder Mountain. This bud
get software line, a division of Mindscape, offers almost 50 differ ent titles of educational and enter tainment software at a suggested retail price of $9.95 each. Among the newest Commodore 64 addi tions to the list are Top Gun, an ar cade-action game based on the popular movie; and Rock 'N' Roll Trivia, a five-volume set of music trivia questions, including on each disk over 1000 questions and an
CerrfmlRmt Software Ji\ititnK.\in>
This product is provided tor the purposB of enabling yvu lo mBkg archival copies only
swers with six different musical cat
'I Saved Time & Money with
egories and three levels of play.
PHYSICAL EXAM"
club.
Last
week
Mindscape, 3444 Dundee Rd., Northbrook, IL 60062
1541 Physical Exam Sample Sc
experienced
Timeworks. Timeworks has released or announced a number of
The alignment
The Timeworks Desktop Publisher for
1
read errors on my disk drive. Luckily 1 have a 1541 Physical
productivity software packages for a variety of computers, including
test confirmed what ] had suspected, my drive was out of alignment. I am happy to report
the 64 available later this year. With
Exam
program.
word processing, page design,
drawing tools, and high-resolution
that I aligned my drive MYSELF. I avoided the wait for repair and paid a fraction of the
graphics, this program offers ease
of use and sophistication. Prices have not been announced. Timeworks, 444 N. Lake Cook
cost.
Package includes: • True digital alignment disk with offset tracks.
Rd., Deerfield, IL 60015
• Mechanical Stop Test
instructions for performing alignment, adjusting speed and stop
Vision Software. For $8.99 each, Vision Software offers a vari
position. • Print test results for future reference.
ety of budget-priced educational
Physical Exam is available for these drives: 1541, 1571, 8050, 8250, 4040, SFD 1001. Please Specify Drive! $39.95 EA. + ship.
programs for Commodore 64 com puters. The collection of programs,
• Speed Test
• Illustrated manual with
See Reviews in: Run Special Issue #3, 1/87, p.83; Info #11, Aug/Sepl 86, p.46 Midnite Cuelle, April 1986. p. 19. ^
Cardinal Software
-"T? Order Toll Free 10 - 4 MON-SAT
Woodbridge, VA 221 91
X I 11 I
1 4840 Build America Dr.
Info: (703) J91-ft494
28
variety of new entertainment pro grams for the major computer sys tems. A Commodore 64 version of Dark Castle, the graphics adventure that has been very popular in Mac
in hand. Or send a check for $39.95 U.S. plus $3 s/h, $8
Backup utilities also available lor the IBM, Apple II, Macintosh and Atari ST.
Disk drive read errors are a frustrating waste of time! I use a data base to keep records for our
former Accolade head Tom Frisina, has announced that it will offer a
COMPUTES Gazerfo
Q /"\ /*V
V V
September 1987
ggft
an educational series that's been used in the Arkansas school sys tem, includes math, English gram mar and composition, geography, and many other topics. Vision Software, 5400 Taylor Rd., Suite 108, Naples, FL 33942 «
Bee Zone Kevin Black and Michael Wiens
Collect the honey of giant bees in this fast-action arcade-style game for the 64. It's never been this much fun to be caught in a hive. One joystick is required. It is common knowledge that the Giant Honeybee, found only in "Bee Zone," is the most productive
must visit all 80 honey cells on the screen. The worker bees are con ' ♦ ♦ W ^M& ▼ ▼
gle Giant can out-produce a whole hive of common honeybees. Be
stantly inspecting every inch of the
id
hive. Stay far away from them— they'll sting you on sight. Also be ware of the huge queen bee. She leaves a trail of honey everywhere
cause of the size of the bees (the LIUES 1
V
V
V
t
w~»i
M
This summer, you've decided
to make a little pocket money col lecting honey. Good luck—it's one
of the hardest jobs in the world.
Collecting honey from a hostile hive in "Bee Zone."
When you've finished typing in the
Typing It In "Bee Zone" is written entirely in
machine language. Enter it with "MLX," the machine language en try program located elsewhere in this issue. When you run MLX, you'll be asked for a starting and ending address. For Bee Zone, re spond with the following values: Slatting address:
0801
Ending address:
1DFB
ficient protection from Giants). To get to the next layer of honey, you
of all honey-producing bees. A sin
largest are six feet long), collecting their honey is a lucrative, yet dan gerous business.
(which is adequate for protection from average honeybees but insuf
data, be sure to save it to tape or to
disk before leaving MLX. Bee Zone can be loaded, saved, and run like a BASIC program. When you start the program, Bee
Zone's theme music plays as you watch the animated title screen. Press the RUN/STOP key to
start the game. You're a beekeeper wearing a protective white smock
she goes.
When you've finished gather ing all the honey in this layer of the comb, you move on to the next. Each cell of honey earns you 10 dollars. Occasionally, an egg ap pears in the center of the screen. Capture it to earn 50 dollars and a bonus life. If you die before reach ing it, the egg disappears. Your high score is displayed on the screen at all times, along with
the current score and the number of lives remaining. To start a new game at any
time, press RUN/STOP. To pause the game, hold down the SHIFT
key or press SHIFT LOCK. See program listing on page 80. COMPUTED Gazelle
September 1987
W 29
Sub Attack Tai Bush
This two-player game for the 64 is a high-speed ocean battle complete with dueling submarines, floating mines, torpedoes, and a patrolling enemy destroyer. Two joysticks are required.
(the white one); port 2 controls the sub on the left (the black one).
brand new submarine. Your oppo
You can move and shoot in any directionâ&#x20AC;&#x201D;including diagonally. Launch torpedoes by pressing the
nent commands an enemy sub. You
had hoped to avoid the war by hid ing in a minefield set up by yet an
spending the day launching torpe
does and dodging mines, enemy torpedoes, and depth charges. "Sub Attack" is a two-player arcade-style game that demands coordination, quick-thinking, and practice. Three levels of speed and selectable game time make it many games in one.
fire button. As you move, be sure to
steer clear of the mines that clog this part of the ocean. Every so often, a destroyer will
The white submarine has just destroyed his opponent. Meanwhile, an enemy de stroyer cruises the sea above, waiting to drop depth charges on cither you or your opponent. The mines pose yet an
other threat to either sub.
When you've finished typing in all the data, be sure to save a copy to tape or disk before leaving MLX. When you're ready to play, plug in two joysticks and load the pro gram with a statement of the form: LOAD"SUB ATTACK",8,1 (tape users substitute ,1,1)
Typing It In
Substitute the name you used to
Sub Attack is written entirely in machine language for maximum speed and payability. Type it in
Type SYS 49152 to start the game.
with the "MLX" machine language entry program found elsewhere in this issue. When MLX prompts you
for the starting and ending address es of the data, respond with the fol lowing values: Starting address: Ending address: 30
C000 I'll
COMPUJEI's Gazette
September 1987
Press fl to begin the game. The port 1 controls the sub on the right
You're the commander of a
the racket. As a result of these unhappy circumstances, you're
choose lengths of 1, 3, or 5 minutes. player with the joystick plugged into
It's turning out to be a very, very bad day.
other nation until the peace talks ended. Unfortunately, your oppo nent had the same idea. And, as if you didn't have enough trouble, the side that laid the minefield has noticed the commotion and is now sending destroyers to drop depth charges on whatever was causing
Use the f5 function key to select the length of the game. You can
save the machine language file.
The Attack
Sub Attack first displays a title screen. From this screen, you can
use the f3 function key to select the speed of the game. Choose either fast, medium, or slow. It's best to try the slowest speed for your first game.
move across the top of the ocean, dropping depth charges as it goes. These charges (and the explosions that they generate when they hit a mine) are deadly.
When a player is hit, the game pauses and both players an? placed back into their starting positions.
Scoring You score 5 points every time you
hit your opponent. Shooting a de stroyer will give you 3 points. If your sub is sunk by a depth charge from the destroyer, your opponent is given 3 points. If you run into a
mine, your opponent will get 1 point. The game ends when the timer reaches the time limit you selected. The title screen reappears with your scores on the screen. Pressing RUN/STOP-RE STORE at any time will break out of the game. However, since the game
alters critical BASIC pointers, it's best to reboot the computer when you've finished playing.
See program Hating on page 89.
Of
PPM Personal Portfolio Manager is the most comp rehensive stock market portfolio manage ment system available for the 64 or 12B—For investors who need to manage stock
portfolios, obtain up-to-the-minute quotos and news, and perform selected analysis. Allows multiple portfolios for special
Super C
C is one of today's most popular languages. It's easy to transport C source code from one computer to another. With Super C you
can develop software or just learn C on your Commodore. Super C is easy to use and takes full advantage ol this versatile language. Produces 6502 machine code and is many times faster than BASIC. Includes
full-screen editor (search, replace and block
Personal
BFtfolio
Manager
Design pictures and graphics quickly and precisely. Unlike other drawing programs, you can produce exact scaled output on your printer.
either Ihe keyboard, lightpen or 1351 mouse. Two
separate
work
screens—transfer
artwork from one screen to the other. Place
text in four sizes anywhere in picture—three extra fonts Included:
the Old
for C-64
ortfolio Manager will help you make the most ofyour money."
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interests (high tech, low risk, income, etc.)
you to undo mistakes. Draw solid or dashed
and monitored individually. And the versatile report generator lets you produce any kind
lines, circles, ellipses at any angle, rays and boxes. Design (ill patterns, fonts and
of report to analyze a portfolio or stock. You can even update your portfolio automatically
objects. Cadpak is the full-featured design
using
and graphics package for your computer. for C-64 $39.95 lor C-128 $59.95
Systems and your modem, for C-64 $39.95 for C-128
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Combine up to seven modules with the linker. Besides the standard I/O library, a graphic library (plot points, lines, fill) and a math library (sin, cos, tan, log, arctan, more) are included. Whether you want to learn C, or program in a serious C environment for your Commodore, Super Cistheor>etobuy.
Design in the units of your
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operations), compiler, linker and handbook.
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Exciting & New! Commodore 64/128 Books from COMPUTE! cowcxjore
64/128 POWER BASIC
A
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MACHINE LANGUAGE
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OF COMMODORE 04
GAMES -
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Get more power, education, and relaxation from your Commodore 64 or 128 with these new books from COMPUTE!. And, as always, the programs are thoroughly tested and easy to enter using our special program entry system. (Disks are available, too.) COMPUTE!1* Commodore 64/128 Power BASIC
COMPUTE!1! Mora Machine Language Oamat lor tlio Commodore 64
Edited
Edited
Collected in this one volume are more than two dozen short BASIC programs from COMPUTE!'! Gazette's popular
Seven of trie best machine language games for the 64 fiave been gathered
monthly column. "Power BASIC." In
into one volume in this follow-up to 'he popular COMPUTERS Machine Language
cluded are utilities thai add an 8K RAM
Games for the Commodore 64. Selected
disk; read and write to disk sectors; make programs read joysticks more
quickly, and automatically generate line numbers. There are also programs such
as "Stop and Go," which creates a pause button to temporarily halt a pro
gram, and "Time Clock," which puts a digital clock on your screen. There is a
companion disk available tor $12.95
which includes all the programs from Ihe book CW8BD3K)
$16.95
ISBN 0-87455-099-8
from recent issues of COMPl/rf/.and COMPUTEI's Gazelle, the games range Irom the frantic "Prisonball" to the delightful "Biker Dave." This is more than just a collection of exciting fast-action
COMPUTEI'!. Third Book ol Commodore
64 Oamei Edited
COMPUTE! Publications, the leading pub lisher of programs for the Commodore 64. has brought together another excit ing collection of nerve-tingling games that will delight the whole family—from preschoolers to teenage arcade fans to
those who enjoy games of logic, Clearly written, with non-technical Instructions,
games, though, because complete and
this book contains hours of challenging entertainment for beginning computer fans as well os experienced pro
commented source code for eoch pro
grammers. There is a companion disk
gram is included in the book. Machine language programmers can see exactly how each game is written and what de sign techniques aie used. A disk Is avail
available tor $12.95 that includes all the programs in the book (955BDSK).
$15.95
ISBN 0-87455-095-5
able tor $12.95 which includes oil the
programs in the book. Including source code. (947BDSK).
$16.95
ISBN 0-87455-094-7
These books are now available at your local book or computer store. You can also order directly from COMPUTEI by calling toll Iree 800-346-6767
(In NY call 212-887-8525) or mailing your order to COMPUTE! Books, P.O. Box 5038, F.D.R. Station, New York, NY 10150. Please Include S2.00 postage and handling per book or disk, NC residents add 5 percent sales tax and NY residents add 8.25 percent sales tax.
Please allow 4-6 weeks (or delivery,
COMPUTE! Publicationsjnc Part oi ABC Consumer MugaM One oi mo ABC Put>Jiihing Co
COMPUTE! books are available outside trie United States
from subsidiaries of McGraw-Hill International Book Company
Exercise Pacer Jon H. Tonaki
This easy-to-use exercise timer turns your 64 into a coach, urging you on to better health and fitness. You can store sever
al exercise routines on disk, providing a variety of routines for everyone in the family. "Exercise Pacer" is a handy pro
gram whelher you're working off a little extra weight or maintaining
your fighting trim. By following the simple menus and entering infor mation requested by the prompts, you can design your own exercise routines that include many activi
ties and various durations. When you have spent enough time on one
activity, your 64 will tell you to move on to the next event. There is a constantly updated clock on the screen so you won't lose track of time, and a progress check that lets
asked to enter the time of day. En ter the time as a four-digit value without a colon. For example, for 1:30 you would enter 0130, and 12:45 would be entered as 1245.
Press RETURN after typing the time value. When you've pressed RE TURN, Exercise Pacer will print out
the time (12:45) and ask if it is cor rect. If not, respond by pressing the N key so you can go back to reenter the digits correctly. Next, the main menu will ap pear. The four function keys appear
When you have worked out what exercises to include, list each of them on paper. Give each an event
number, exercise name, and time limit. Remember to include time for breaks and rests between repeti
tions. If you work out with weights, allow time to adjust the weights for the next exercise. A sample listing is shown below: Event
Time Limit
Exercise Name
1
Parallel bar support L
15 seconds
2 3
Rest 10 push-ups
10 seconds 10 seconds
4 5
Rest Prepare weight station
10 seconds 1 minute
for chin-ups
Entering Routines Before you start, you will need a blank disk to store the information
you know how many activities are
on the screen, each with a specific
left before the end of the routine.
purpose.
you enter for Exercise Pacer. For mat the disk by pressing /5 to select
Key
Function
formatting from the main
Enier exercises and save to disk
Exercise Pacer will guide you through each step of the formatting
Typing It In
Type in Exercise Pacer and be sure to save a copy before you run it. Ex ercise Pacer has a few machine lan guage subroutines stored in DATA statements, so be sure to use the "Automatic Proofreader," found elsewhere in this issue, when typ
(1
when finished.
f3
Recall exercises from disk and edit or run the exercises.
f5
Format disk.
(7
Exit Exercise Pacer.
menu.
process. One disk will hold several exercise routines, so this step will
oniy be necessary the first time you run Exercise Pacer.
How To Prepare Your
Exercise Plan
You should now be ready to enter your routines into Exercise
ing it in.
Before using the program, you
Pacer. Press fl on the main menu to
When run. Exercise Pacer will pause for a few seconds to do some preparation. Then you will be
should do some planning. Remem
enter your exercise routine. Exer
ber to consult your physician before
cise Pacer will ask for a filename for the routine. Type in the filename
beginning any exercise program.
COMPUTE'S Gazette
Septembor 19B7
33
(not to exceed 12 characters) and
press RETURN. Start programming your rou tine by event. Using the listing you've prepared, enter the name of
the first event. (Commas, quotation marks, and colons should never be used in the names of your events.)
Your exercise name can be up to 35 characters long. Next, enter the time limit for
the first event. In our example, we want to hold a parallel support L for
15 seconds. When entering time for Exercise Pacer, you must enter a
four-digit value representing min utes and seconds. For example, 15
seconds would be entered as 0015, 59 seconds wouid be entered as
0059, and 60 seconds (1 minute) would be entered as 0100. Press RETURN after typing the time value. Never enter colons between
the minutes and seconds (00:15) and always convert to minutes after 59 seconds (0060 is illegal and will
not be accepted). After you have pressed RE TURN, Exercise Pacer asks if you've made a mistake. Check over your entry carefully. If your entry is correct, pressing N will move you
on to the next event. If you made a
mistake, you can correct it by press ing Y. You will be prompted again
for the name of the event. If the name is correct, just press RE
TURN. Otherwise, type the name in correctly. Then you will be prompted for a time. Once again, if
the time is correct, just press RETURN. Keep entering data from your exercise sheet until you run out of events.
Exercise Pacer will allow
you to store a
maximum
of 200
events per routine. You can exit
from the programming mode by entering END as the name of the ex ercise. Exercise Pacer will now ask you to place your formatted data
disk in the drive and to save your exercise routine under the name you assigned.
If the save is successful, the
you want to edit. When disk access
is done, Exercise Pacer will ask if you want to go right to running the routine or if you wish to view and edit your file. Press E to enter edit mode. With the edit mode activat ed, you can view any exercise event in your routine. Follow instructions on the screen to page through each event. Press the A (for Add) key to add additional events, or make changes to existing events by press ing the E (for Edit) key. If you've made any changes to your existing file, Exercise Pacer will attempt to save the file under the same name. If you don't want the previous file erased and wish to store the edited routine under another name, the computer will give you an opportu nity to do so.
Working Out Recalling and running a routine is easy. Just press /3 and enter the name of the file you wish to run. When Exercise Pacer asks you whether you want to run or edit, press R (for Run) to begin the rou tine. When Exercise Pacer is activat ed, a bell will ring to alert you that the routine will start soon. Then Ex ercise Pacer's screen appears. On it, the computer tells you the time of day, the number and name of the event you should be working on, how many events are left in your routine, and the time limit preset by
you for that particular event. The last item on the screen is the clock which counts off the time.
When the time limit is reached, Exercise Pacer chimes five times and moves on to the next event. You may pause the timer by press
ing the space bar. Pressing it again restarts the timer. To skip to the next event, press the up-arrow key
once for each event you wish to advance.
COMPUTED Gazelle
September 1987
â&#x20AC;˘ouse
Yes! I would like to know more about UMI Article Clearinghouse. I am interested in electronic ordering through Ihe following systemlsl:
H DIALOG'Dialorder D in" Djalcom GOnTyme DOCLCILL Subsystem
~ Other (please specify!. G I am interested in sending my order by mail.
D Please send me your current catalog and user instructions for the system(s) I checked above.
Titleâ&#x20AC;&#x201D;
turns you to the main menu.
To abort Exercise Pacer when
See program listing on page 78.
34
For more information about the Clearinghouse, please fill out and mail back the coupon below.
Name-
other disk).
menu and enter the name of the file
available from the UMI Article Clearinghouse,
again rings the bell and then re
the timer is running, keep pressing the left-arrow key until the main
Editing Exercise Routines
are now
When you've finished with all the exercises, Exercise Pacer once
computer gives you the opportuni ty to repeat the save (in the event you want to make a back-up on an
To make changes to an exercise routine, just press/3 from the main
of articles from this publication
menu appears.
9
Institution/Company. Department. Address City
-State.
.Zip.
Phone(
Mail to: University Microfilms International 300 North Zeeb Road. Bos Bl Ann Arbor, Ml IH106
Screen Maker Clay R. Reed Programmers and artists can streamline the creation of custom screens with this fast and efficient character-graphics program. Packed with features and simple to operate, "Screen Maker" will change your thinking about character graphics. The pro gram offers joystick operation, a full palette of colors and char acters, and a subroutine to make your custom screens easily accessible for BASIC programming. Anyone who has experimented with Commodore 64 character
or character color.
graphics has probably come away
• Scrolling of the screen horizontally
with two strong convictions: You can draw just about anything using character graphics, but it takes pa
tience and lots of time. "Screen Maker" is a utility for artists and programmers alike which puts ease and joy into using character graphics. It allows you to draw, erase, scroll the screen in
three directions, change colors, and replace characters faster than the blink of an eye. It also allows you to save and load graphics either from within 5creen Maker itself or from your BASIC program. Plus, it pro
vides you with a palette of charac ters and colors to choose from, and it lets you use a joystick. Although it is written entirely in machine lan guage, use of Screen Maker re quires no knowledge of machine language programming.
Features Screen Maker provides these features:
• Selection of any of the uppercase/
• Variance of cursor speed. or modifying the program to scroll
vertically. • Changing of characters or colors on the drawing screen to any other character or color. • Saving of your creation to tape or disk for later recall.
• Printing of your Screen Maker graphic designs.
palette. Although you see only the top 17 rows, the drawing area is ac
tually a full 25 rows high. The other eight rows are hidden behind the
palette at the bottom of the screen. You can scroll the drawing area so
that the bottom eight rows become visible. You can also make the pal ette disappear in order to see the entire drawing at once.
To the left of the palette is an area which provides access to sev eral special features. Between the special features and the character palette is the color palette.
Using a joystick plugged into port 1, move the flashing cursor to
one of the characters in the charac ter palette and press the fire button. The cursor will take the shape of that character. Then move to the color palette and choose a color, again pressing the fire button.
Typing It In To type in Screen Maker, you must use the "MLX" machine language entry program found elsewhere in
this issue. When you run MLX, it will ask for a starting and an ending address. Respond with these values:
Move the cursor up to the drawing area. When you press the fire but
ton, you will transfer the character to the screen in the selected color. As mentioned earlier, only 17 drawing rows are displayed at a time. To get to the bottom rows,
Starting address;
COOD
hold the joystick in the down posi
Ending address:
CH01:
tion while the cursor is at the bot
Be sure to save a copy of
Screen Maker to disk or tape before exiting MLX.
How To Use Screen Maker
tom border. This will scroll the screen up one row at a time. Hold ing the joystick in the up position while the cursor is against the top
border will scroll the screen back
Disk users must load this program
down one row
by typing in LOAD "filename ,8,1/
reaches its original position with
where filename is the name you
at a
time until it
Maker from
rows 1-17 displayed. Remember that the drawing will be saved or
MLX. Tape users should type
printed in its current position. If it is not positioned the way you want it
the joystick.
LOAD "filename", 1,1. To run the program, type SYS 49152 and then press RETURN.
with the various scrolling features
• Choice of any background, border,
You will see a drawing area and a
of Screen Maker.
graphics characters, standard or
reverse, from the onscreen palette. • Placement of any character any where on the drawing screen using
used to save Screen
to look on the printout, adjust it
COMPUTE'S Ga;a»H
September 1987
35
Using Special Features
+ and — Control the cursor speed. Pressing the fire button while the cursor is over the + in creases the cursor speed. Pressing the- fire button while over the — de creases cursor speed. BORBGR
Selects border and
character in the second space. The third and fourth spaces operate similarly. If you wish to change ev ery diamond on the screen into a heart, and vice versa, you put a dia mond into the first and fourth spaces and a heart into the second and third spaces; then execute DO.
background colors. Pressing the fire
This will swap the two characters.
button while the cursor is over the first three letters (BOR) will change the border color. The last three characters (BGR) change the back
••«DO This is the color swap command. It functions identically to the character swap command ex cept that you place colors, rather
ground color.
SCROLL
Scrolls the screen to
the left one column. Characters which sctoII off the screen on the
than characters, into the circles in order to change or swap character colors.
the screen's horizontal position.
SV LD These are the save (SV) and load (LD) functions. Position the cursor over SV and press the fire button. Screen Maker will prompt
DO
you for a filename, and then save
left reappear in the last column on the right. This is useful in adjusting
This is the character swap
command. Using the joystick, place
the character to be changed in the first space (at far left) and then place the new character in the sec ond space. Move to the word DO and press
the
fire button. Every
character on the drawing screen which matches the character in the
first space will be changed into the
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the current screen to tape or disk under the name specified. It will then save the colors of the screen. The color file has the same name as the screen file, except the first char acter of the color filename will be an up arrow. Say you saved the screen under the name SCREEN.
The color file will be written to the disk under the name *CREEN. The LD option will load a screen and its associated color file, includ
ing the background and border col ors, from tape or disk. PRINTS
Prints the current
screen on the printer (your printer must support the Commodore character set).
CLRHME When the cursor is over CLR and the fire button is
Quality reDJ.icenienTs Tex most oooular printers
S3.95 aa. $3.95 ea J2.95 ea. S1.75ea. . S4.89aa.
Color Ribbons AvallaDIa At Great Savings Tog
10
REM
COPYRIGHT
TE1
PUBLICATIONS
.,
RD 30 AH
40
procedure:
Load a working version of press RETURN. Type the following
Reduced
shipping charge on larger Quanhtics Foreign or-
dera. APOfFPO. please call Ml residonls add 4% ta« Prices subject to chanrjo without notice Hours 8.30 AM - 7 00 PM ET
CALL TOLL FREE 1-80CI.25S.0028 Precision □a P.O. Box B3B7, Grand ftaplda. Ml 49518 (SIB) 452-3457 • FAX: IS1<> 412-TJH
three lines in direct mode, pressing
RETURN after each line. FOR L = 49369 TO 49373: POKE L.234: NEXT FOR L = 49406 TO 49412: POKE L,234: NEXT
POKE 43,0: POKE 44,192: POKE 45,16: POKE 46,203
PUB
RIGHTS
{SPACElRESERVED"
FORL-679TO747iREADAiPOKE
L,AtX-X+A:NEXT:IFX<>1070
2THENPRINT"DATA
ERROR":S
TOP DATA162,238,160,2,173,23
BH
50
MJ
60
DATA255,169,1,162,8,168,
RA
70
DATA169,0,32,213,255,173
SH
80
DATA94,240,8,169,94,141, 238,2,76,167
AC
90
DATA2,162,4,160,0,169,21
PB
100
6,133,254 DATA169,204,133,252,132
FF
110
DATA177,251,145,253,136
7,2,32,189 32,186,255 ,23B,2,201
,253,132,251
,209,249,230,252,230,25 4,202,208,242,96
To access your screens, run the short program above. Then load your BASIC program and add the following subroutine. SJ 10 FFS-"FILENAME":GOSUB6000 01 END
DE
position, follow this simple
COMPUTE I
PRINTTAB(10)"ALL
REM
joystick is held in the up or down
1987
INC."
turns off the palette to display the full drawing as long as the fire but
tinuously up or down as long as the
-
PRINT"£CLR](3 SPACESlCOP
YRIGHT
REM
If you want the screen to scroll con
COMPU
INC.
ED
DE 20
30
ton is pressed.
1987
[SPACE}ALL RIGHTS RESERV
FD
er disks
Outllds Ml 1800 258-00211
BE
pressed, the screen is cleared. HME
Screen Maker; then type NEW and
Ml 1-S0O.C32-!*6J
it off and back on. Another useful feature is to be able to access the screens you create from your own BASIC programs. The following short program will allow you to do just that. Remem ber to save a copy of it to tape or disk before running it.
20
Mm Order $25 00 Add 10% for less than 50
disks SSH' Continental USA S4 Od'100 or low
SZ 00 per dozen ribbons
must reset the computer by turning
YOUR
PROGRAM
CONTINU
KB GP
HF
40
REM
60000
POKE53265,PEEK(53265)
60001
AHD239 FORXX»1TOLEN(FFS):POK E749+XX,ASC(MID${FFS,
Modifying The Program
PRINTER RIBBONS Black Black Black Black Black.
you would use to save a BASIC pro gram: SAVE"MOD VERSION",8. After making the modification, you
FD
Sold In lots ol SO only.
Apple fmagewrilor Apple Scribe Epson LX 80/90 Okldata 80/82IB3 Toshiba 1350
Now save a copy of the modi fied version using the same format
EJ
60002
XX,l))iNEXT
POKE749,LEN(FF$)iSYS6 79
DF 60003
POKE53280,PEEK|2024)i POKE53 281,PEEK(2025)
BA 60004
POKE53265,PEEK{53265) OR16I RETURN
You can now load your screens
by including a line similar to this in your BASIC program: 10 ¥?$-"filename":GOSUB 6000
In this example, filename is the name of the screen to be loaded. Each time your program defines
FFS and executes GOSUB 6000, the Screen Maker screen will be loaded.
See program listing on page 87.
*
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D
AlgeBiaster! For years teachers have assigned exer
AigeBlasferl makes it easy to tackle the 20 "Solve It!" problems, interrupt ing the work for a congratulatory screen at the 10-problem point, and with an
gram's problems do. Where algebra allows some answers to be represented
slate, then with pencil and paper, and later in bound notebooks. With the
other at 15 problems. To allow for fur
as +/ —, the program requires the stu
growing availability of classroom and
ther study, all the problems and
dent to solve for a single, acceptable an
solutions are given in the manual. (This
swer. The final limitation we
proved to be an unexpected help—one problem had an incorrect answer on disk, but the correct one was in the
discovered in AlgeBiaster! concerns the "congratulations" screens in the pro gram: As graphics go, these are very
manual.)
unsophisticated. This can be viewed as
cises to students, first with chalk and
home compulers, the next logical medi um for these exercises is the education al software package. In keeping with the industry stan dards they've helped lo establish, Davidson & Associates has released AlgcBlasier, a program designed to help the student tackle the basic steps in solving algebraic problems. This pro gram provides instruction for 21 differ ent topics from five subject areas: Positive/Negative Numbers, Monomi als and Polynomials, Factoring, Equa
AigcBlaster! allows you to create
problem lists for use in "Solve It!" This is aimed at providing greater latitude in study, but there are some problems.
The manual tells you it's all right lo use spaces in the filename. It isn't. Also, if
you don't select the right options, you
Each topic is covered by way of
three separate activities. In "Study the
Steps," two sample problems are dis played, one at a time. The student moves an arrow through the problem,
and an explanation for each step in its solution appears below it, "Build Your Skills" is a ten-problem practice session with prompts available to help the stu
AlgeBiaster! provides clear instruction and good, challenging drills—a combination almost ahvai/s
guaranteed to increase skills.
AlgeBiaster! provides clear instruc tion and good, challenging drills—a combination almost always guaranteed to increase skills. The program employs
can end up in a loop that leaves you with a screen ordering you to check your data disk and press RETURN (which accomplishes nothing). The edi tor is difficult to use because it is so par
ticular; this can be frustrating.
As good as the rest of AlgeBiaster!
a building technique that establishes a foundation on which subsequent les
is, it, too, has some limitations. Al though there are no bugs, there are a
rely on skills learned in previous materi
before getting started.
sons can be constructed. Topic exercises
al, Problems in the exercises start out easy and grow in difficulty. The prompts in "Build Your Skills" are carefully writ ten to help students work out the solu
tion without giving away the answer. AlgeBiaster! is a forgiving teacher. Problems marked as incorrect in the
"Solve It" section may be retried by
students who wish to improve their scores. Tor those who like to keep track
of performance, or for parents or teach ers who wish to check a student's pro
few things you should be aware of First, in the "Solve It!" exercises,
alert students will be able to detect pat
terns in the solutions. This could be seen as good or bad. For some, finding patterns will actually help in learning
how to figure the solution to certain cat
egories of problems. For others, though,
it may provide a lazy way out: The pat
tern, rather than algebraic procedures, can be used as the basis for arriving at
solutions. This characteristic could be
gress, Algeblaster! gives users the option
construed as too helpful, leading rather than teaching the student. Again, this is
percentage of problems correct, and a list of the problems missed.
ents, and teachers should be aware that this is how the program operates.
of printing out a record with date, topic,
COMPUTE'S Gazetto
Ssplember 1987
familiar with videogame graphics, may be unimpressed by the simplicity of those used here. On the other hand, while that may be partly true, the pur pose of this program is not entertain
We both agree that the graphics se quence is merely a pat on the back, a lit
tle encouragement. There was a time when solving a problem and getting a good grade was all the reward a student expected, so the importance of this fea ture will be decided by each user.
AlgeBlasterl is a software work
book. It doesn't try to entertain but puts you to work on improving your skills, encouraging you and recognizing work
cise. "Solve It!" is the real test: 20
solving each problem.
most likely to be using this package),
looking for much graphic excitement.
dent think his way through each exer
problems with no prompts; students are, however, allowed two attempts at
a drawback because teenagers (those
ment, so users probably won't be
tions, and Systems of Equations.
40
Second, while not all algebra prob lems lead to a single answer, this pro
not necessarily bad, but students, par
well done. The problems have been compiled with care, and the explana tions have been made as brief, compre
hensive, and understandable as
possible. The effort expended to create
this tutorial is laudable, because it works. It's an effective review of alge
bra. We're about 20 years beyond our algebra classes, but sessions with AlgeBiaster! brought everything right back. For a student in the midst of cov ering the material, AlgcBlaster! would be an even bigger plus. —David and Robin Minnick Davidson & Associates 3135 Kashiwa St. Torrancc, CA 90505
S49.95
Where In The USA is Carmen Sandiego? SpeedTerm 128 From time to time, we read or hear
In Where in the USA is Carmen San
diego?, you play a sleulh in the Acme Detective Agency. Your mission is to track down Carmen Sandiego, who has escaped from a European prison and is now in the United States, assembling a gang of toughs to help in her criminal
complaints that there is little software available for the Commodore 128. And | r«r- r i - :■ i j an cotton,
then along comes another program from a company like Abacus—in this
lattounti r -c only
case SpeedTerm 128, Here we can point
IdtPtndict Mtrtomt Santa Fr ■"n: \--.rz ]■?
I but rat* cation
If l- 11 mrrvnt at The Ikiiil'i urn tncane.
tant than high quality.
endeavors. To find her, you must travel the U.S. and seek out her contacts, pick
Abacus has again focused its de velopment and marketing on an area left vacant by most software publishers,
ing up clues along the way. You do have some help: Your agency managed to steal Carmen's scrapbook, which gives you infor mation on many of her thugs; the Crime Computer helps you narrow down the suspects; and you have a copy of Fodor's USA, a travel guide book, for reference (included in the
and in doing so it has brought forth a 128-specific telecommunications pro
er city; Investigate; or the Crime Computer.
again and again, learning a little more about logic, common sense, and U.S. geography each time.
package, and the reason the box is so
self-booting from a 1571 disk drive and
member, your time is limited), but as you become familiar with the suspects
and their haunts, and as you pick up more clues, you'll begin to narrow down which places to investigate and which to leave alone. The Crime Computer lets you en
ter details about the suspect. You can
specify the suspect's sex, hair color, fa vorite food, favorite sport, hobbies, and
will allow use of a two-drive system
(drive 1 being designated by an 8> prompt, and drive 2, by 9>). Further, it
Abacus has again focused its development and marketing on an area left vacant by most
software publishers, and in doing so it has brought forth a
may tell you that you're ready to make an arrest, it may just as easily yield
128-specific telecommunica
nothing at all. However, several hours Crime Computer to the time it gives
various cities and points of interest. Some clues are fairly easy to figure out (such as knowing that to get to Cape
your choice in computers. The disk is
musical preferences; then let the com puter do its work. While the computer
on your detective skills. This game is both educational and challenging, and it clearly teaches a lot through the U.S., clues direct you to
In making full use of the features of
may enter any or all of them; certain
thick). Aside from these, you must rely
about U.S. geography. As you travel
easy to use.
the 128, SpeedTerm may reassure you of
Visiting each building takes up time (re
that players will be drawn to it
gram that is not only good, but also
When you Investigate, three build ings within the city are shown. You ones will yield clues about the suspect.
This package is so intriguing
out that greater selection is less impor
elapse from the time you start the
tions program that is not only good, but also easy to use.
you information, so you may find that you don't want to use it often.
If you solve the pur./.le and arrest Carmen, you can start the game over
takes advantage of the extended memo
again, but in the new game everything
ry by keeping a full "help screen" in an
Canaveral you should take a plane to
in the USA is unlike most adventure
disk, being always available at the
Miami, not a plane to Houston), but others are more involved, and you'll
games, which are discardable once solved. In fact, this package is so in
Fodor's USA to figure out where to go.
again and again, learning a little more about logic, common sense, and U.S.
probably have to read through parts of The location clues work hand-in-hand with clues gathered from Carmen's scrapbook, so note-taking is essential, and, since you are only given a limited amount of time to find Carmen, every detail is important.
The main screen is divided into four parts: The top left comer shows your current location, time, and day (for example, Atlantic City, 7 p.m., Tues day); the majority of the left screen shows a scene in your current city; the top right corner gives textual infor mation, usually about your location; and the bottom right screen displays your choices of action. From the city screen, you can choose See Connec tions, which shows what places you can
reach directly from your city; Depart By
Plane, which allows you to go to anoth-
will be different. In this respect, Where
triguing that players will be drawn to it
geography each time. The interface (all joystick driven) is friendly, and the game is well designed. Its only draw backs arc that you can save only one mission per disk, and once you save
that mission, you have to reload the game to continue. But these flaws are forgivable. Where in the USA is Carmen Sandiego? is one of a new breed of educa
area that acts very much like a RAM touch of the Help key. When in the Command mode, the
Help Screen displays every available command, including one that will swap to a 40-column display for those who may not have an 80-column monitor.
There is also a DOS wedge, invoked simply by typing DOS, that will allow you to perform disk housekeeping functions without leaving the program. You'll find Ihis important when you're online, ready to download a file, and
suddenly find you have no formatted disk.
tional products—a game that makes learning both challenging and enjoy
The command structure of SpeedTerm is such thai, although you have
able. That's a combination hard to beat.
the Help Screen only a keypress away,
—Neil Randal!
Brsderbund 17 Paul Dr. San Rafael CA 94903-2101 539.95
you may soon learn to communicate without it. Efforts have been made to make the commands mnemonic, so that
RP means Receive Punter and TP means Transmit Punter; DIR calls up the disk directory and BUF tells you the status of the buffer, COMPUTE! s Gazette
September 1987
41
And although the list of available commands may at first seem daunting, you should bear in mind that they will
not all be used at each session. Getting online and uploading or downloading a file or a game—or carrying on a CD-like conversation with a new friend— usually involves no more than half a dozen commands.
you should understand about terminal
of SpeedTerm being that it does this by
pensive. Next, being apparently easy to write, there are any number of public domain programs available. A third
that soundless text will do no more than
characteristic of terminal programs is that they fail to dazzle: Don't look for your screen to explode with computer
Since lime is what we buy from
pyrotechnics in the form of mindwarping graphics and sound.
communications services, such as
Like SpeedTerm 128, such programs
CompuServe and Delphi, it makes sense for most of us to buy as little as possible.
do more than fill your screen with
Long files can be downloaded to a mem ory buffer much faster than to your printer or disk drive, and from the buffer
they can—-once you're off-line and no
longer paying for time—be saved to disk or printed to hard copy. For this reason,
a capture buffer is good, and large ones are better than small ones. SpeedTerm provides a capture buffer of 46K, and if you're ready for a comparison, we'll point out that this is greater than the to
tal free memory on a 64. In its terminal mode, SpeedTerm
128 emulates the DEC VT-52 terminal. You don't have to worry about this be yond accepting that it is a standard for
telecommunications. Nor will you have to worry a great deal about parity, word
length, stop bits, or duplex, for SpeedTerm uses the most popular combina tion as a default mode: no parity, 8-bit
word, one stop-bit and full duplex. These setlings can, of course, be changed as necessary.
So, as far as modems are con cerned, select yours from the menu list ed ill the beginning of the progr.im and then forget about it. With the exception of the Commodore 1670 (1200 baud), all modems listed are 300 baud.
Where communication protocols
are concerned, SpeedTerm 128 supports
both Xmodem and Punter, Xmodem being an almost universal standard and.
the Punter being designed specifically for Commodore computers. Both accomplish the same thing: error-free
transfer of files. Also making file trans
fer easier is the ability of SpeedTerm to convert Commodore ASCII to true
ASCII—rather like converting a regional dialect to one universally understood.
The documentation supplied with
SpeedTerm exhibits the attention to de
tail we've come to expect from Abacus. Though it comprises only 70 pages (in
cluding index), it is supplied in a looseleaf binder that will lie open on your desk, thus making reference quick and easy. While it is written in such a way as to be informative and helpful to the be ginner, older hands are told what sec tions they may skip to get to the heart of
the program. Thus, the manual should
offer something to everybody.
If you're a newcomer to telecom
munications, there are several things COMPUTED Gazette
September 1987
like . . . well ... a terminal (the value
programs. First, they are generally inex
utilizing the features of the 128). And provide you with a link to the world— which is, after ail, rather dazzling. —Ervin Bobo
Abacus Software P.O. Box 7219
Grand Rapids, MI 49510 $39.95
soundless text, making it look
The Writing Adventure Consider this. You are a parent or teach er. You want your child or a student to
learn-how to write compositions. You know he has imagination. You hear it when he tells you why he's late coming home from school. He watches a lot of TV. He's fascinated by your computer, which he uses constantly for video games. How can you get him away from
the TV and into capturing some of that imagination on paper? Introduce him to
Tiic Writing Adventure. The Writing Adventure takes the writer through a series of pictures. Each
colorful graphic depicts a scene which the adventurer—the writer—must de scribe. The scene may contain items which can be looked at, picked up, or
dropped, text-adventure fashion. Simi larly, the adventurer must choose an exit from the scene, and his or her abili ty to take that path may depend upon
If you've ever taken a creative writ ing course, you'll be familiar with the approach: Show the students a picture
and ask them to write a story about it. Sometimes the teacher has to ask lead ing questions to inspire ideas. That same method is at work here. For each picture, the program provides leading
questions to which the students may re fer for help when they're stuck. The
The Writing
Adventure ... keeps the imagination flowing and
provides some excelletit guidance in writing.
what items are being carried.
The writer's description of the scene is taken down on notecards that appear onscreen at the touch of a key.
These are tided to match the scene and must be filled with a preset number of words (which is adjustable) before the writer can move on to another scene.
The cards can be printed out later, too.
By the last scene in the series, the adven turer has been trapped, and the writer must use his wits to write an escape.
After the writer has completed his
adventure and has made all his notes,
he moves on to a word processor mode to create a four-page story from the
notes. The notes are available onscreen while he writes, but otherwise this cre ative exercise is most traditional: work ing from notes to create a story.
A proofreader/editor is included on
the disk. This feature pinpoints potential errors, citing rules of grammar, punctua
tion, and style that might apply. The writer first decides which items he or she wants the proofreader to check for, and then decides if actual corrections are needed. When the story is satisfactory, it
can be printed out. This requires an 80-
column printer, and care must be taken
in positioning paper. The program crowds 30 lines onto a page.
questions are well-chosen, provocative
without being difficult. The aim is to stimulate the writer's thinking for this story as well as to teach a technique he or she can use in the future.
Hie Writing Adventure operates
from two disks: the Story Starter (for the adventure and creating the note-
cards) and the Story Writer (for word processing and printing). In addition,
you must have a separate data disk.
This makes for a lot of disk-switching at the beginning and the end of a session with the program—and that is cumber some. It is also a bit confusing, but if
you follow the screen prompts precise ly, the program performs as promised. The manual provides good instruc tions, along with plenty of warnings about the important technical points of
working this program. There is, however,
one point which could be more clearly
defined. Although stories are separate
ly identified so that any one can be re called from a data disk, it is not so with the notecards. Only the most recent set
of notecards saved to a particular disk is accessible. This means that if you're working more than one adventure at a time—which isn't too likely—or if more
than one person is working on his or her own adventure—highly likely, particu
Create With Garfield
larly in a classroom setting—you need a
Create with Garfield is one of the easiest
separate data disk for each adventure.
scene-creation packages available for
Story Writer's word processor is a
little unusual if you're used to others. It erases rather than deletes, but after making a correction, you can make up for leftover spaces by pressing
the Commodore 64. Like other educa tional creativity packages, it allows us ers to draw scenes on their own, but
a time; then the story can be reformat
student to create a Garfield scene with
ted again.
in minutes.
clude homonym distinctions (to, too,
two, or there, their, they're); the proper use of such pronouns as each/every/
any; and correct placement of punctua tion such as commas, hyphens, and semicolons. It takes a while for the proofreader to scan for mistakes, but the writer may choose which of seven error
categories he or she wants the program to look for. Of course, it merely high lights potential problems, and then ex plains the applicable rule. Decisions
about changes are left strictly to the writ er. This exercise alone is educational. The Writing Adventure is geared to develop writing skills in youngsters age
stimulate so that the writer can take notes. And the adventure will keep the writer at it. However, it has to be hoped
that once the notes are done, enough creative interest has been piqued to mo
tivate the child to write the story. While the Playwriter series by Woodbury al
lows you to create a genuine bound
book, thus making the finished product the incentive. The Writing Adventure
runs the risk of using up its incentive with the first segment. For some, this may mean that parental or teacher en
couragement is required to get the the writer to complete his or her story. For others, the thought of turning the notes
into a coherent story may be enough to keep at it.
The Writing Adventure is a fine package for home or school. It keeps the imagination flowing and provides
some excellent guidance in writing. If you're a parent, especially one who ap preciates the need to know how to write but doesn't feel confident teaching a
child how to do it, this program offers a
The idea of Create with Garfield is to stick pictures onto a background. Backgrounds on the disk include an
empty room, a table, a tree, and a fence. Once you have decided on a back ground, you go to the Get Stick-Ons menu to select a foreground figure.
can save your work to a data disk, so you can show your work later to
friends. But Create with Garfield allows you to print your work in several ways. You can print the cartoon on a sheet of label. The documentation suggests cre
ating ID. tags for school supplies, name
backgrounds and stick-ons
ery, and signs, to name just a few possi
makes the package extremely appealing to children, who can simply boot up the program and start making pictures.
Stick-ons include Garfield, Odie, Jon, and friends Arlene, Nermel, and Pooky—all from the popular "Gar field" cartoon series. Each figure is shown in several poses, and you select them one at a time. Other stick-ons in
clude Props such as various types of food (this is Garfield, after all), a picture
of Garfield, and several quotes typical of the cartoon cat. You can also call up thought balloons of various sizes in or der to write your own captions.
If you exhaust the backgrounds and props included in the software, you
can create your own using a KoalaPad drawing tablet and software. By far the most difficult aspect of using Create
cards for parties, personalized station
bilities. Another option is to link your cartoons together in an "electronic comic." This feature, which is possible
only when you format the data disk from within the Create with Garfield program, automatically displays the cartoons in the order you have saved them to the data disk. And if that's not
enough, the manual suggests several related activities, which will be useful mainly for teachers. Create with Garfield is useful and fun. Impressive for its ability to get the
user creating shortly after boot-up, it al lows for a considerable amount of flexi bility. Any child of school age should be able to use it easily, and Garfield fans of any age should find it appealing. For those who like creativity programs
that encourage and do not intimidate, I recommend it highly.
—Neil Randall
DLM I DLM Park Allen, Texas 75002
$39.95
°
with Carficld, this feature also allows
you the most flexibility. For those who
can draw or trace, or for those who have built up libraries of KoalaPaint pic tures, this portion of the package will be particularly useful. For others, though, it may be unnecessary. Since you can
write your own captions, and since the major Garfield characters are presented in several poses, running out of new
combinations will take quite a while.
1 DIM Park
making pictures.
$59.95
simply enjoy them on the screen. You
The variety of predrawn
DLM Allen, TX 75002
An
paper, print it as a poster, or print it as a
The variety of predrawn backgrounds and stick-ons makes the package ex tremely appealing to children, who can simply boot up the program and start
wonderful, entertaining solution. —David and Robin Minnick
Wn
along with a good interface, enable the
9 and up. The Story Starter with its ter rific graphics and adventure format is guaranteed to intrigue the youngsters into taking the first steps. The questions will help focus the ideas the pictures
□nl Stick-on »
tive. The program contains a number of predrawn scenes and characters, which,
greater mention. An interesting list of "common mistakes" has been compiled for the computer to check for. These in
und
unlike most others it offers an alterna
SHIFT/CLR to reformat the story. Text can also be inserted, up to three lines al
The proofreader/editor warrants
CARFIELOSLIBHAFIV Sff Plclu't
So what can you do with the pic tures you create? Well, first, you can COMPUTE!'! Gazetto
September 1987
43
Tom R. Halthill, Staff Editor
Each month, COMPUTERS Gazette tackles some questions common!]/ asked lii/ Commodore users. If you have a question you'd like to see answered here, send it to this col
umn, c/o COMPUTED Gazette, P.O. Box 5406, Greensboro, NC 27403.
^
I'm wondering if it's possi
ble to recover a disk. I went to de lete a program with SCRATCH and used NEW by accident. There were at least 20 programs on the disk. They weren't big ones, but they were important to me.
/\m Sounds like a lost cause. The
Commodore disk command NEW (abbreviated N) completely refor
other companies for the problem. Please tell me the solution."
viously formatted, however.)
The problem is caused by the com
Since you intended to use the
SCRATCH command (abbreviated S) instead of NEW, it's possible that you inadvertently used the fast-for matting option, which resembles the syntax of the SCRATCH com mand (OPEN 15,8,15: PRINT#15,
"S0\filename"; CLOSE 15). Theo retically, therefore, your programs are recoverable.
Unfortunately, the job is very difficult and requires a thorough understanding of the way infor
mats the disk, erasing any infor
mation is stored on the disk. Using a sector-level disk editing utility,
mation that was stored there.
you have to examine each sector on
(Don't confuse this with the BA51C command NEW, which erases the
the disk and rebuild the directory piece by piece, then use a VALI
program currently in memory with
out affecting the disk.) If you don't have any backups, your programs are gone forever.
However, there is an outside
chance that the data is recoverable, depending on how you entered
NEW, Here is the most common
syntax:
OPEN 15,8,15: PRINT#15,"N0:i/isiiLimc.iil": CLOSE 15
This form of NEW completely erases and reformats the disk, giv ing it the new disknamc (up to 16
characters) and the id (2-character disk identifier) you specified. Any previously stored data is not recov
erable. But, if the disk was previ ously formatted, NEW can also be entered like this: OI'EN 15,8,15: PRINT#15,"N0:rfisfrMriwtr": CLOSE 15
.Notice the difference: No id is
specified. This is known as the fast-
formatting option, it takes a short cut and reformats by simply
clearing out the disk's directory and block allocation map—two areas where the disk's contents are in44
dexed and organized. The actual data on the disk is not erased; that's why this form of NEW is faster, (It works only if the disk has been pre
COMPUTERS Gazette
September 198?
DATE command to rebuild the block allocation map. That could take hours, even for an expert, and prob ably isn't worth the trouble unless
the lost data is extremely valuable. In the future, be sure to make
backup copies of your important disks and keep them in a safe place.
^
I'm curious. What's the
most common question you re
ceive for "Simple Answers To Common Questions"?
/V» The answer to that question
really is simple: Questions about re calcitrant printers. Most letters can be summed up like this:
"I've got a Commodore 64, an
XYZ-2000 printer, a Bitbucket-99 printer interface, and HardSoft's WordMartgler word processing soft ware. When I try to print underlined
boldface italics in near-letter-quality
condensed mode with superscripts
and subscripts, all I get is garbage. I've written to Commodore, the XYZ Corp., Bitbucket Inc., and HardSoft
about my difficulty. But either they don't reply, or they blame one of the
Unfortunately, there's not much we can do with these letters. plex interaction between the com puter, printer interface, printer, and software. Given the amount of hard
ware and software available for Commodore computers, there must be hundreds of possible combina tions. Although we have a variety of equipment, we can rarely duplicate the reader's setup exactly, so we can't begin to find the answer.
The manufacturers usually can't help, because they usually can't duplicate the problem, either.
And the manufacturers may well be right when they blame each other. After all, their product probably works fine by itself or when used with familiar components in their test lab. They can't always antici
pate the eccenIricities of other links in the chain.
So what's the solution? First, take preventative measures. Before assembling a computer system, try to make sure all the components (in
cluding the programs you anticipate buying) work together in harmony. If you buy your system from a fullservice dealer, ask to see it working as a systcm—especially the printer,
printer interface, and any software
that depends heavily on the printer, such as a word processor. What if you've already bought your system? Read and reread your manuals, experiment, seek help
from a user group, and try posting messages on bulletin board systems
(BBSs) and information services. Chances are that someone before you has encountered and solved your problem; it's just a matter of finding that person. <Q)
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r
Using RESTORE And TAB
Larry Cotton
and press RETURN. You should see
Let's do things a little differently this month. For a change of pace, we'll start with a BASIC program and let the explanation follow. We'll create a little "Rolodex" program, which is sort of a miniature database—and in so doing, will introduce a new
BASIC command, RESTORE, and a new BASIC statement, TAB. Most of us are familiar with a
Rolodex—a card fiie with names, addresses, and telephone numbers, usually in alphabetical order by last name.
A database, for the uninitiated,
is really a computerized filing sys tem. It can be as elaborate as an inventory system for a large corpo ration, or as simple as a personal
telephone directory. Commercially available data bases are very sophisticated and talk to the disk drive a lot. With our Rolodex program, we'll use the READ and DATA statements, which we've studied in the last two columns, to take the place of com munication with the disk drive. Here's our program: 10 20
PRINT"{CLRj" RESTORE:NS="":INPUT"NAME";N s 30 IF NS=""THENPR1NT:GOTO100 40 READAS.BS 50 60 70 80
IF AS="NL"THEN
PRINT:PRINT"
HOT LISTED":PRINT:GOTO20 IF A$<>NS THEN PRINTiPKINT B$ PRINT:G0TO 20
40
100 READ AS,BS:IF A$="NL"THEN 200 110 PRINT AS;TAB|7);BS:GOTO100 200 PRINTiPniNT"PRESS /iNY KEY TO
CONTINUE"
210
GET RS:IF RS=""
220
GOTO
THEN 210
10
1000 DATA LARRY,285,JIM,280,KE NNY,265,GORDON,207
1010 DATA TERRY,209,JOHN,204,C HRI5,289,NL,NL
This program was written to
display telephone extension num bers in an office. Type it in, being sure not to type a space between
TAB and the open parenthesis in
line 110, and then run it. When you
see the prompt NAME?, type JOHN 46
COMPUTER'S Gazette
September 1987
204 and another prompt.
Line 60 uses an IF-THEN state
dial is indexed or not—or perhaps
ment to check the first piece of data, A$, against the typed-in name, N$. If it isn't the same, control is sent back to line 40 to read the next two pieces of data. Notice we don't
you've forgotten how to spell a
need to bother with the second
When you see the NAME? prompt, if you don't remember whether the person you want to
name—just press RETURN to dis
play a list of all the names in two neat columns. To make this program really
useful, all you have to do is change the names and numbers (and prob ably add more DATA statements). Or perhaps you'd like different data altogether. But we're getting ahead
of ourselves. Let's see how the pro gram works. Line 10 just clears the screen. If
you want different colors for the screen and printing, look in your user's manual for instructions on
how to change them.
The RESTORE Command
We encounter one of our new BASIC commands in line 20. Since
the program will depend on read ing through the names and num
bers each time a name is typed in, we must be able to read the data more than once. The command to
piece of data, B$—the number—if A$ doesn't match N$. The computer loops through lines 40-60—reading and check ing, reading and checking—until
the IF-THEN statement is failed: N$ finally matches A$. Control goes to line 70, which prints B$— the number—then to line 80, which sends the program back to line 20 to
ask for another name. The two PRINTs in lines 70 and 80 just print blank lines on the screen. Now for line 50. This line is used in case the computer has read through the entire list of names and has not succeeded in making a match. Remember, we're reading
two pieces of data at a. time. We must make provision for letting the com
puter know there's no more data to
read. So we put NL,NL at the end of the data as a flag. You can use any thing you wish as long as you test
do that is RESTORE, which resets
for it in line 50. If NL is read as AS, NOT LISTED is printed and the program goes back to line 20 for an
the beginning again.
other try.
Here's how the computer looks up a number after we type in the name: First, line 20 presents the
When are lines 100-220 used? We need a way to show all the cards in the database. The best way is to read all the data and print the names and numbers on the screen. That's exactly what lines 100 and 110 do, until line 100 reads NL, NL;
the computer to read the data from
NAME? prompt with the INPUT statement. When we type some
thing, the computer stores it as N$.
If we just press RETURN, N$ be
comes a null (empty) string, which
we've learned is expressed as quo tation marks with nothing in be tween (" ").
Line 30 checks to see if N$ is a null string. If so, the program prints
a blank line and jumps to line 100. Line 40 reads two pieces of data—A$ {the name) and B$ (the number). Let's skip line 50 for a moment and come back to it later.
at that point there's no more data to be read.
We also need a pause to hold
the names and numbers on the screen for viewing. We could use a FOR-NEXT timing loop, but the timing probably would not corre spond to the length of the list. What's the best way to pause
as long as the user wishes? Use GET (see the June column). Line 210
goes into an infinite loop until any
key is pressed, at which time line 220 is executed. The control is sent to line 10, which clears the screen, restores the data pointer to the be ginning, and presents the NAME? prompt once again.
Customizing If you'd like to tailor this program to your own needs, change the data
starting at line 1000. For instance, if you have a record or tape collec tion, some of the data lines could look like this: 1000 DATA THOMPSON TWINS, HERE'S TO FUTURE DAYS, 21.MIKE CROSS.CAROLINA SKY,22
1010 DATA PETER CETERA, SOUTUDE/SOLITAIRE,23,JIMMY BUFFET,FLOR1DAYS,24 1020 DATA JIMMY BUFFET,GREATEST HITS,25,NL,NL,NL
The format of the data is up to you, but in this case it's organized by art ist, album title, and album number. The number could correlate with, say, the order in which the album was acquired.
If you enter these lines and try to run the program without chang ing anything else, you'll quickly discover several bugs. Let's fix them. First, we need to read three pieces of data instead of two, so change line 40 to:
The TAB Statement
Another bug should be very obvi ous: Something's wrong with the just-press-RETURN routine at lines 100-110. Part of the trouble is with
COMB Authorized Liquidator
the TAB statement. FACTORY
TAB works with the PRINT statement, just like a typewriter tab: It causes the printing to start to the right of the left screen border by the number of spaces specified by the
NEW! FIRST QUALITY!
value inside the parentheses. In our old line 110, we set the
tab to seven spaces, which was de termined by the length of the long
est name—Gordon—plus one space. That placed our telephone number column seven spaces to the
right of the left screen border. In our new data, the longest name of the recording artist—
Thompson Twins—is 14 characters (counting the space). Adding one
more space yields a TAB value of 15. Thus line 110 becomes:
COMMODORE® VICM0DEM™
• Use with the Commodore" CG4",
the SX-64artheVIC-20 Computer. • Bell 103 Compatible.
110 PRINT AS;TAB(15);CS; GOTO 100
• Full Du lex; 300 Baud.
Remember the syntax of TAB: There's no space between TAB and the parentheses. You must decide how much information you want to display in the just-press-RETURN
routine. In this case, line 110 prints the artist (A$) and the album num ber (C$) by that artist. There's one more problem:
• Manual Dial Direct Connecting.
• FCC Registered. This Modem is LOW liquidation priced because it was closed out by Commo dore !*. Add it to your computerlor access to timely financial information, news and reference libraries...as near as your
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Use with data cassette (included), or with terminal program software, available at
40 READ AS, BS, C$
Line 70 prints only the album's ti tle, not its number. Change line 70
Change line 100 to:
to:
100 READ AS, BS, CS: IF AS - "NL"
70 PRINT: PRINT B$;TAB(22);CS
ust*59.00
The tab value of 22 is set by the length of the longest name of the al bum title ("Here's to Future Days")
Liquidation
THEN 200
Also be sure to put three dum
my data iter.is as your last data flag (see line 1020 above). Next, since you probably own
several albums by the same artist, all should be displayed—unlike the Rolodex program, where we want
ed to display only the first match. Therefore we need to send control back to line 40 instead of line 20. Change line 80 as follows:
90-Day Umlted Factory Warranty.
Incidentally, the number in the parentheses after TAB can be as high as 255, but usually numbers less than the screen width (40) are Next month we'll study TAB a hit more, mention another BASIC command that's very similar to it,
This will go back to read the next
strings.
our message in line 50 would be appropriate: 50 IF A$ = "NL" THEN PRINT: PRINT"NO MORE LISTINGS":
PRINT: GOTO 20
*19
Hem H-2752-7041-072 Ship, hand: J4.0D oa.
Commodore It a reglitered Irfldommk of Commodore
Credit card memtura can o*d»r t
phofiv, 2* fumn a day, 7 day* fl week.
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.. i.-.-:-. i ■. ■ i ■ ■ i i i.ir, ,^i ,■ iiaiti art wb|eti to iptcul cvdrttona Pititt call or vrrrf* 10 Inquire
used.
SPC, and learn the ropes about
beginning. And a slight modification to
Priced At Only ..
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plus one space.
80 GOTO 40
three pieces of data—not back to the RESTORE at line 20, which starts reading the data from the
computer stores.
■
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Easy Character Movement
If you've discovered a clever timesaving technique or a brief but effective programming shortcut, send it to "Hints & Tips," c/o COMPUTERS Gazette. If we use it,
we'll pay you S35. We regret that, due to the volume of items submit ted, we cannot reply individually to submissions.
Easy Character Movement
964 50
POKE
1,55sPOKE
60
POKE
56,48
One powerful feature of the 64 is its ability to display user-defined char acter sets. Most BASIC program
mers use a FOR-NEXT loop to copy the system's character set from ROM to RAM, and then make alter ations on one or more characters.
This process takes up to 30 seconds, though, so many people turn to ma chine language. If you don't know machine language, you may be able to find a routine for moving charac ters in a book or magazine, but I've found another way to move memo
of memory. Just change Jine 10 to
You can use an 8 X 8 grid to define your own characters. When you've decided which character you
adjust the starting, ending, and new starting addresses. You can remove
ter number (the screen code value,
to move the contents of other areas
lines 20 and 50 if you're not moving the character set from ROM.
have to trick the computer into
moving our memory by setting cer tain system variables before the SYS statement.
but they are unnecessary if you're copying from one RAM location to another. Note that the variable E
must be set to one more than the ac tual ending address. C=6:POKE
53272,(PEEK(5327
2)AND240)OR2*C 10
S=53248:E=55296:N=12288
20
POKE
25
L=E-S:EN=-L+N
56333,127)POKE
1,51
30 A%=L/256:A=L-256*A%:B%=( EN-A)/256:B=EN-256*B%-Ai C%={E-A)/2S6!C=E-256*C%-
70
40
POKE :POKE
KE 52
FOR
J=0
7:POKE
TO
781,A%+liPOKE 90,C:POKE
89,BiPOKE
COMPUTE'S Gazette
782, A
91,C1:PO
B9,B3:SYS41
September 1987
ter number 3. Multiply that number by 8 and add it to the address of the
new character set to find the address of the definition of the character C. The following figure shows how
characters are designed: 128 64 32 16
S
4
2
1
255:FOR
K=0
T
14336+8*J+K,PEE
K(12288+8*J+7-K):NEXT
K,
J
This is adapted from a program in Programming the 64, from COM PUTE! Books. It turns the lowercase
character set into upside-down copies of the uppercase set. Press the SHIFT and Commodore keys si multaneously to see the new char acter set. The character set is copied from ROM to RAM in much less
than one second. The modification of the lowercase set takes much longer, since all the work is being
done in BASIC. Let's design a character from scratch. Add the following lines, re placing line 70 above with a new line 70.
The definition shown is for a downarrow character. Put the numbers from the right column into the
DATA statement in line 80 of the example program above to see the arrow.
Other Possibilities Now that you can move areas of memory at machine language speed without knowing machine language, you can put the high speed movement routine to some
other uses, such as moving sprite definitions, scrolling the screen, or
moving all or part of one screen to
70
FOR J=12288
TO
12288+7:R
80
EAD N:POKE J,N:NEXT J DATA 255,129,129,129,129
,129,129,255
A
definition. For example, C is charac
gram above:
moves the character set from ROM
tory when copying from the ROMs,
the result to the starting address of
New Characters
The following BASIC program
line 10. Lines 20 and 50 are manda
not the ASCII value) by 8; then add
Add the foilowing line to the pro
O
be set by changing the variables in
want to change, multiply the charac
the RAM character set. This will give you the address of the character
When you enter a program line, the 64 must move its variables higher in memory. It uses a simple memo ry-move routine to do this. To move our character set, we just
ry at ML speed.
to RAM at machine language speed by using a built-in routine located in the 64's operating system. The starting address, ending address, and new address for the move can
character set. The new character is a box. It replaces the @ characterâ&#x20AC;&#x201D; type @ to see it.
You can also use this technique
Why It Works
Clifford Dedmore
5
56333,129
This program POKEs a charac ter definition directly into the RAM
another screen.
s
Dr. J's Bulletin Board
Fred D'lgnazio Associate Editor
Dr. Ron Jones (known as "Dr. J" to
his teachers) is Director of Staff De velopment for six dozen schools in
Jefferson County, Alabama. Dr. J is like a shepherd; his job is to nurture a sprawling flock of Jefferson Coun ty teachers and help them grow and develop professionally, Dr. J likes the personal touch, and he used to try to stay in touch
megabytes) to house the bulletin board, He bought a copy of PCBoard, which John customized
for the Jefferson County schools. And he got county officials to in stall a phone line dedicated to the
County Multi-Media Classrooms Project. (See my recent COMPUTE! and GAZETTE columns.) This was a
bulletin board.
good first step. By keeping the number of schools limited at first. Dr. J and his teachers have been
An Electronic Pony Express
able to iron out a host of technical problems with modems, communi
One morning in early April, Dr. J switched on his computer, and the bulletin board became a reality. Once it was up, it became an online
with his teachers by telephone. But
pony express linking teachers all
this was an unsatisfactory means of
across the county—7 days a week, 24 hours a day. Any school with a modem and a computer—any com puter—could dial the bulletin
communication. Most of the time, teachers couldn't come to the phone because they were in their classrooms teaching. So how did
"working so hard" in the Jefferson
board number and log on.
cations software, and phone lines shared with school lunchrooms, health rooms, and day cares. 5econd, Dr. J started the board with teachers who wanted to com municate because they were work ing on a project together. He noted, "You need a bunch of go-getters
who will act as leaders to inspire other teachers to use the board." What is the future of educa
Dr. J consult with them about his
Jefferson County already has a
new training programs? Or about visiting speakers? That was Dr. J's problem. His solution was to start an electronic bulletin board, perhaps the first
"pony," a delivery truck which
tional bulletin boards? According to
cruises across the county carrying packages from school to school. The present-day pony is fine for carrying bulky items around, but it is not the way for teachers to stay in close touch or keep up with fast-breaking news. Now teachers can stay in
Dr. J, it is wide open. He has al
touch using Dr. J's bulletin board.
setting up. Dr. J also sees the board
board in the southeastern U.S. de voted exclusively to linking teach
ers for the purpose of commu nication, training, and professional development. According to Dr. J, "In a system such as ours, we have a lot of people who are on fast tracks. Communication is impor tant, yet it needs to be done at everyone's convenience. The bulle tin board makes that possible." If you want to set up your own
ready spoken with Dr. Ronald Wright at the Alabama State De partment of Education. He and Dr. Wright are talking about linking the Jefferson County Board with a statewide board that Dr. Wright is
To demonstrate his point, Dr. J
as an electronic "telepublishing"
had me conduct my interview for
medium. Teachers, administrators,
this column with his bulletin board.
and trainers can load news stories
I called up the board using my Com
on the board
modore 64, logged on, and sent a
message to the 5YSOP with my questions for the interview. I sent
home or classroom; then Dr. J can pull the stories off the board at his office and create a professional-
directly
from their
the message at my convenience—
looking, county-wide newsletter
bulletin board but you're not a
late one evening after my family
using desktop publishing software.
computer whiz, how do you get
and look for a person who is al ready running a local board. That person is the key to helping you set
was in bed. The next day. Dr. J re plied: "I sat down at the computer at 7:25 this morning and started re sponding to some of the questions you raised. Since I have a busy day
up a board of your own. You can
scheduled, I chose to get it done ear
find the person you need by asking
ly. People in education run a hurried
around at local computer stores.
pace. Wouldn't it be nice to go home
building this bulletin-board airplane as we fly it, but we know we're on the right track because the teachers keep the board buzzing." If you'd like to learn more about Dr. J's board, write: Dr. Ronald Jones, Di rector, Staff Development; JeffCoEd
This is how Dr. J ran into John Sud-
and then decide to use the computer
Annex; 801 Sixth Ave. S.; Birming
derth, a Birmingham musician who runs a national bulletin board for Music Alley, a local electronic mu
you purchased at home to catch up
ham, AL 35233.
started? You could do what Dr. J did
According to Dr. J, "We are
•
on what's going on? Teachers all
sic store. Based on John's advice,
know that catching up during the school day is next to impossible."
Dr. J acquired an IBM-compatible computer with a hard disk drive (20
to link the 13 schools who were
Dr. J set up the bulletin board
COMPUTE!s Gazette
September I9B7
53
Using ROM
Richard Mansfield Editorial Director
If you've been perplexed about
are preconditions: You often need to
how to access your ROM chips' li brary of subroutines, COMPUTE! Books has recently published an ex cellent book on this topic. Written by staffers Todd Heimarck and Pat rick Parrish, Machine Language Rou tines for the Commodore 64/128 is arranged like a dictionary with over 200 examples showing you how to accomplish everything from sprite manipulation to disk I/O. Each ex ample is thorough, cross-refer enced to related routines, and, above all, easy to understand and
set up registers, call preliminary rou
use in your own programs. Here's
tines, and do other housekeeping
an example from the book which shows you how to manipulate the
When you buy your computer, it al ready knows how to do thousands of things. Its ROM chips are filled with programs and routines which run the
BASIC language, access the peri pherals, keep time, and so on. As a machine language programmer, there will be many times when you can utilize these useful, prewritten routines. But it's not as simple as just
jumping to a ROM subroutine. There
before you can take advantage of this valuable shortcut.
SID chip in various ways.
SIRENS Name
Produce a siren sound
Description SIRENS causes the SID chip to emit an extended sirenlike sound. At certain intervals in a game, you could use it to signal to the user that he's reached a higher level or achieved bonus points. Or you could use it as fanfare at the conclu sion of the game. Prototype
1. Clear the SID chip with SIDCLR. 2. Set up the necessary SID chip pa rameters for voice 1. Set sustain/
Routine cooo cooo cooo cooo cooo cooo
m m
FRELO1 FREHT1
VCBEG1 SUREL1
C0OG
FRELO3
cooo cooo cooo cooo cooo cooo cooo
VCREG3 CUTLO CUTHI RESON SIGVOL RANDOM
cooo
20
64
C0O3
A9
F0
C005
8D
06
coos
A9
21
C00A CO0D
8D A9
02
COOF
C012
8D A9
10
con
SD
12
C017
A9
AF
04 0E
C0I9 C01C
8D
19
A9
01
C01E
8D
17
C02I
A9 8D
00
C023 C026 C028
A9 8D
4D
C02B
A2
00
C02D
A9
00
C02F
65
FC
54
ZP JIFFLO
15 16
COMPUTEis Gazette
CO
m —
m m _
_
— MB
251
54272
162
low byle of jiffy clock voice 1 frequency control (low byte)
54273
voice 1 frequency control (high byte)
54276 54278 54286
voice 1 control register voice 1 sustain/release register voice 3 frequency control (low byte)
54290
voice 3 control register
54294 54295
54293
54296
lower three bits of filter cutoff frequency filter cutoff frequency (high byte) filter/resonance control register volume and filter select register base frequency to add to voice 3
BASFRE
—
54299 15000
SIRENS
JSR
SIDCLR
go clear the SID chip
LDA
set full sustain/fastest release
STA
#$F0 SUREL1
LDA
#%00100001
STA
select sawtooth waveform (voice 1) and gale sound
VCREG1
D4
Vi
LDA
D4
#2
STA
FRELO3
LDA
D4
STA
#%00010000 VCREG3 #%10101111
LDA
reads high byte of voice 3
give voice 3 a frequency select triangle waveform (voice 3)
disconnect voice 3 output/select band pass/max, volume
D4
STA
D4 D4
LDA
SIGVOL #W)0O00001
STA
RESON
LDA
#0 CUTLO #77
STA LDA
D4
SIRLOP
September 1987
STA
CUTHI
LDX
#0
LDA
#0
STA
ZP + 1
no resonance and filter voice 1 select band-pass cutoff frequency of 616
; ; ; ;
as an index in SIRLOP Calculate voice 1 frequency from voice 3 frequency (high byte). initialize voice 1 frequency (high byte)
C031 COM C036 CO38
AD
IB
85
FB
D4
LDA STA
RANDOM ZP
06
FB
A5L
ZP
26
FC
; gel voice 3 frequency (high byte) ; store in zero page as low byte ; multiply it by 32, double low byte
ZP+1
C03A
06
FB
ROL ASL
; then high byte
CQ3C CO3E C04O C042 C044 C046
ZP
26
FC
- double four more times
ROL
ZP+1
06
FB
ASL
ZP
26
FC
ROL
ZP + 1
06
FB
ASL
ZP
26
FC FB
C048
26
FC
ROL ASL ROL
ZP + I
06
CO4A CO4C CO4D CO4F
A5
FB
LDA
ZP
69
98
8D
00
CLC ADC STA
#<BASFRE FRELO1
IB
ZP ZP+1 Add a base frequency of 15000 to this. low byte first far addition
AS
FC
LDA
ZP+1
add low byte of base frequency and store in voice 1 frequency register (low byle) then high byle
69
3A
ADC
#>BASFRE
add high byte of base frequency
SD
01
STA
FREHI1
C059
A9
04
COSB C05D CO5F C06I CM2
65
A2
LDA ADC
and store in voice 1 frequency register Delay four jiffies. add four jiffies to jiffy clock reading
JIFFLO
C5 DO CA DO
A2
CMP
JIFFLO
BNE
DELAY
C052 COS4 C056
D4
D4
DELAY
FC
#4
DEX BNE
C9
SIRLOP
and wait for four jiffies to elapse for next note repeat SIRLOP 256 times Fall through to SIDCLR to stop sound and
RTS. Clear the SID chip. C064
A9
00
C066 C068 C06B C06C C06E
AO 99 86
IB 00
10
VA
D4
SIDCLR
LDA
SIDLOP
LDY STA DEY
60
release to $F0, select a sawtooth waveform, and gate the sound. 3. Assign a low frequency and a tri
angle waveform to voice 3. 4. Disconnect output from voice 3.
At the same time, select band pass filtering and the volume. 5. Store %00000001 in the filter/ resonance control register to fil ter voice 1 without resonance.
6. Select a band-pass filter cutoff frequency. 7. In SIRLOP, multiply the output of voice 3 by 32 and add in a base frequency of 15000. Store the low and high bytes of the result ing frequency in voice 1. 8. Pause four jiffies before getting another frequency value for voice 3.
9. Repeat SIRLOP 256 times. Then clear the chip and RTS.
Explanation In this routine, the output from voice 3 modulates the frequency of voice 1. In the process, voice 3 is not actually heard. As a result, no SID attack/decay or sustain/release pa
rameters are required for this voice.
BPL RTS
#0 #24 FRELO1.Y SIDLOP
fill with zeros
35 Ihe offset from FRELO1 store 0 in each SID chip address for next lower address fill 25 bytes we're done
Its only use is in providing a fre quency value for voice 1. After disconnecting the audio
output of voice 3, the waveform (high byte only) for this voice is read from RANDOM. Since a trian gle waveform is selected for voice 3, the numbers returned by RANDOM increase gradually from 0 to 255, and then work down to 0 again. In
order to get a suitable frequency range for voice 1, these values are multiplied by 32 and then added to a base frequency of 15000. Another feature of SIRENS is
its use of band-pass filtering. With the band-pass filter implemented, frequencies on either side of a cut off frequency are diminished in volume. Since only 11 bits on the two-
byte cutoff register are addressed, the cutoff filter value can range from 0 to 2047. Although the number
stored in this register is proportional to the cutoff frequency (in this case, 616), the value itself does not repre
USED
COMPUTERS Buy • Sell • Trade —
,.
sad
t* Ne
lC^rnmodore — ISM "I Hardware. Software,
li1,.
and Accessor ins;
sffid
.luipment, even if it's darrjuge*) .
TRADE INS* new or
rade your sySfem ft free. flKTERS • COMPUTERS • MODEMS ACCESSORIES
- Try oi.t BBS:(3O3)B39:-8174lMigi9i4w LN0W1
sent an actual frequency. Probably
the best way to achieve the effect you're looking for with this register is through experimentation.
9
Ci»H: (3O3| 839-814^ M-FJ2-11 omirfr^.
" VISA MC, CtlQICt. p.oi " " ■
How To Program
Todd Heimarck
Four lines and an END state
Assistant Editor
ment, and the structure of the pro gram is established. I'd suggest
Sentences like fight dragon and wear armor start with an action and end with an object, so we need at
Let's say you're not a programmer,
doing the first and fourth routines
least two vocabulary lists and some
but you'd like to learn to program.
before the second and third. If you read the file and print the results
commands. The player can fight a
If you take a class in
beginning
BASiC, you'll probably start off with programs like these:
check to see that all the data is be
10 I'RINT "MY": PRINT "NAME"
ing read from disk into memory.
20 PRINT "MY",: PRINT "NAME" 30 I'RINT "MY";: I'RINT "NAME"
The first subroutine might break down into the following lines:
10 FOR X = 10 TO 50 STEP 2
1000 REM GOSUB 1100: REM INPUT
20 PRINT X; "TIMES TWO IS"; X"2
30 NEXT X
These are certainly useful ex amples. The first program shows
how to use punctuation at the end of a PRINT statement. The second illustrates how a FOR-NEXT loop runs, with output to show what's going on inside the program. But a good solid 1000-line pro gram is not just a 2-line program ex panded by a factor of 500. To put it
another way, knowing how to con struct a grammatical and correctly
spelled sentence is not the same as knowing how to write a novel. A novel has characters, plots and sub
plots, among other elements. It's more than just a collection of sen tences. Likewise, a large program is more than just a long list of com mands to be executed one at a time. So how do you write a nontriv-
ial program? There are two ap proaches to program design, both
(without alphabetizing), you can
FILENAME
1010 REM GOSUB 1200: REM OPEN FILE &l CHECK FOR ERRORS 1020 REM GOSUB 1300; REM READ FROM FILE 1030 REM GOSUB 1*00: REM CLOSE FILE 1040 RETURN
Why all the REMs? They hold
the place of the GOSUB, but they don't do anything (yet). As you add a routine, you can delete the REM. The routine at line 1000 is outlined, so you can erase the REM inline 10.
This process would continue, with each routine sketched out in REM statements. Then you'd either write a routine or further divide the program into smaller steps.
The official name for this strat egy is top-down programming. You begin at the top and gradually fill out the program's outline.
Starting At The Bottom
of which are useful.
Second example: Let's invent a text adventure game with trolls, trea
The Big Picture
sures, dungeons, and all of the usual accouterment. 1/ we took a top-
First example: You've typed in and saved to disk a list of recipes or an inventory of baseball cards and you want to alphabetize the list. An ex
cellent strategy in this case is to look at the program as a whole. Consider the following program: 10 REM GOSUB1000: REM READ FILE
20 REM GOSUB2000: REM SET UP POINTERS 30 REM GOSUB3000: REM ALPHABETIZE â&#x20AC;˘10 REM GOSUB4000: REM PRINT RESULTS 50 END
56
COMPUTE'S Gazette
September 1987
down approach, we'd create a gen eral plan of action, draw some maps, invent some monsters, and
get things organized. But we won't. The key to a text
adventure is the command line, where the player types something like #o reesf. The program takes apart the sentences and tries to de
termine what the player wanted to do. All text adventure games do this
with a routine called a parser. Let's begin with the parser routine.
way to cross-reference acceptable dragon, but can't fight a door. May be we should check the action first and narrow down the list from there, so if the player types fight, we go to the list of fightable things. The list of actions might be in alphabetical order. The program will search from start to finish, looking for a match. But what about a single-word command like west? It would be at the end of an alpha betical list, slowing down the search. There are two solutions: We could search the list from beginning to end, putting the most common commands at the start of the list. Or we could use a binary search, which is similar to the way you look for a name in a phone book, starting in
the middle and gradually narrow ing down the scope of the search. In this case, you'd begin searching in the middle of the alphabetized list
and throw out one half or the other, depending on where the command is located. Another key question is how time works. Let's say a snarling hobgoblin appears. Do we give the player time to do things like look, inventory, list spells, help, wear ar mor before deciding to run away? Maybe yes, maybe no. As you may have guessed, this
second approach to designing a program is called bottom-up pro gramming and, in this case, it seems
to make more sense than the topdown strategy. â&#x20AC;˘
Helpful Hints
Chris T. Asselin Even in the user-friendly world of GEOS, experience remains the best teacher. This month, we present some helpful techniques collected
by an experienced GEOS explorer. To begin, let's look at a few impor
tant tips for new GEOS users. • If you think you've acci dentally ruined the original CEOS disk, you may be able to fix it your
self. Refer to the manual for details of the fairly simple repair process. • Keep two disk backups of GEOS, one in your disk holder and the other in a place hidden away
geoPaint document may lose a por tion of its right side during printing. To avoid the problem, restrict your GEOS documents to the left threequarters of the total available screen area. Before starting any sig nificant work, make a test of exactly how far to the right you can go. Keep track of the results by using the ruler in geoWrite. For geoPaint,
• Make separate geaWrite and geoPaitil work disks; this leaves more room for files that you create with the programs. Also, reserve another work disk for text scraps
to set up your preferred arrange ment. This is a convenient feature,
especially for grouping together icons for multipart programs. You can use the "Icon Chang er" program—found in the January
1987 Gazette—to give your own files a unique look. Just enter the
name of the file (for example, ES
place a fully printable reference line
SAY 1 or STORY 5), and proceed
at the top of your document. If you print a file from the Desktop by dragging it to the print er icon at the bottom of the screen, be careful. A moment's inattention can result in your file falling into
from there.
the Trash Can and being erased.
from heat, cold, moisture, and mag netic sources.
you can drag them back to the pad
Text Tips After using italic text, an immediate
You may want to put the icon
for a frequently used program in the first icon position on page one of the Desktop Notepad. From then
on, you can load this file from BASIC by typing LOAD'—',8 (for BASIC) or LOAD""',8,1 (for ma chine language).
switchover to plain text will usually
Painting Plans
result in part of the italicized letters being cut off. The truncated letters will also print incorrectly. Avoid
The circles produced by geoPaint's circle option look like ovals on the
and note files. Data on this disk can
the problem by simply adding a
al, and it results in perfectly round
later be extracted and stored on geo-
space or two before changing style.
circles when the file is printed.
Paint or geoWrite disks.
(You may see a similar effect in ital
• The duplicate option in the
file menu is useful for copying PRG, SEQ, REL, and USR files.
screen. This distortion is intention
After establishing a text area in
ic type even without changing style.
geoPaint, you may find that it's not
This affects the screen image only.
what you wanted. Unfortunately,
The printout will be normal.)
text boxes can be very persistent.
• When creating and naming
Use geoWrite to make a printed
Just reselect the text option from the
files, use only capital letters when typing the names into dialog boxes. On most screens, it's very difficult to read the lowercase letters in the typeface used for filenames. • Be careful when selecting op
page showing the different sizes and styles of type fonts that are
menu to remove the existing box,
tions from menus, in some cases, a
file deletion option lies right next to
and start anew.
available in your system. Keep this
In geoPaini's pixel mode, you
chart on the wall near your com puter. A text reference of this kind
can move rapidly around the draw ing window by using the scrolling
is helpful, since the appearance of a
arrows. This returns you to the nor
printed letter is often quite different
mal screen, where you can again se
from its screen counterpart.
• If you cut or copy any piece of
Ideas For Icons
lect an area for pixel editing. After creating a geoPaint pic ture, save another copy of the file
You can reposition the file icons
before making any major changes.
graphics or type and put it into a
that appear on the Disk Notepad.
This is an essential safeguard since
photo or text scrap, it will overwrite
Each page of the pad offers eight
what was previously there.
icon locations—two 4-icon rows,
Printing Pointers
one above the other. GEOS always utilizes these icon positions in strict order, top left to bottom right. To
the Undo option can undo only the single, immediately previous stage of your artwork. In GEOS, Undo
a less dangerous choice. The poten tial for trouble is obvious.
GEOS assumes that documents will be printed on printers having a res
make a change, pick up the icons
olution of 80 dots per inch. If your printer doesn't conform to this standard, a full-screen geoWrite or
down to the margin at the bottom
you want to move; then drag them
of the Disk Notepad. Once there,
cannot be used to reverse the effect of an Undo.
Next month, we'll begin a detailed twopari article on writing assembly-language programs for GEOS. COMPUTEI's Gazette
(ffi September 1987
57
DoublePrint
tween 20 and 40 columns, either in
columns; the second (SYS 49391) is
direct or program mode.
used to switch to 40 columns.
this program that produces text twice the size of the normal 64-
Typing It In
Type LIST. As you type, you'll see strange symbols. Press RE
DoublePrint is a machine language
TURN. Your program will list in 20
character set.
program in the form of a BASIC loader. Since it requires accurate typing, use the "Automatic Proof reader" program found elsewhere in this issue when you enter it. Be
characters when you typed
Scott and Keith Elder Have your say in a big way with
Sometimes it's nice to spice up the
screen with an unusual character set. "DoublePrint" gives you some thing really unusual—a 20-column character set.
Why would anyone switch from 40 columns to 20? One reason is that the larger the word, the easier it is to read. It may be just the trick
you need to capture someone's attention.
With DoublePrint installed in memory, it's easy to switch be
columns. The reason you saw strange LIST
concerns the way DoublePrint works. As far as the computer is
sure to save a copy to tape or disk
concerned, the 20-column screen is
When you're ready to see how
not real. DoublePrint intercepts the CHROUT routine. Whenever the
when you've finished typing.
a screen with 20 columns looks, load
computer prints to the screen {ex
the program and type RUN. After the ML program is POKEd into memory, you'll see a genuine 20column screen. Two SYS locations are printed on the screen. The first
cluding when you are typing), DoublePrint prints each letter
(SYS 49152) is used to switch to 20
A Powerful Wordprocessor (for the Commodore 128®
twice—once in normal mode and once in reverse mode. The charac ter set is redefined so that the nor mal character definition holds the
left half of the letter and the re versed character definition holds
the right half of the definition. When the two halves are printed next to each other by the new
CHROUT routine, one large char acter is the result.
Selected
1 for the 1987
--CES Software
Showcase A ward.
From the author of Fontmaster II comes Fontmaster 128,
an enhanced version for the Commodore 128. This powerful word processor with its many different print styles (fonts), turns your dot matrix printer into a more effectual tool. Term papers, newsletters, and foreign languages are just a few of its many applications. * Program disk with no protection - uses hardware key * Supplement disk includes foreign language fonts * 56 Fonts ready to use
clearly how the 20-column screen is constructed.
The program loads at 49152 ($C000). If you want to use the 20column mode in your own BASIC programs that require keyboard en
write your own input routine using
the GET command rather than INPUT.
* Supports more than 110 printers This pakige will suun be avalibul with a spel czechr Commodoie 128 is a icgisiered trademaik of Commodore Business Machines, Ine
Inc. 2804 Arnold Rd
press RETURN, HELLO is printed to the screen correctly. Now go back to 40 columns by typing SYS 49391. You'll see more
try from the user, you'll need to
* Font editor/creator included * On screen Font preview * 80 column only
Lwv
Try this: Type an A. Then, switch to reverse mode {CTRL-RVS ON) and press A again. The whole letter appears. Now try an immedi ate mode command. Go to a blank line and type PRINT "HELLO". Again, you won't be able to read what you're typing. When you
Salina, Ks. 67401 t913) 827-0685
See program listing on page 83.
<ZS
Programming Books from COMPUTE! COMPUTE! Books offers a line of programming books for the intermediate to advanced Commodore 64 and 128 users. These reference books take you beyond BASIC and into machine language programming, helping you learn about memory maps, addresses, the new GEOS, and time-saving routines you can add to your own programs. COMPUTEI's 126 Programmer's Guide Editors o( COMPUTEI
ISBN 0-87455-031-9 444 pages A complete guide to the Commodore ! 28, this book explores BASIC 7.0, shows you how to create graphics and sounds, explains how to program peripherals. and introduces you to machine language programming.
SI 7.95
Mapping the Commodore 128 Ottls R. Cowper
ISBN 0-87455060-2
?M pages
The comprehensive memory map and programmer's guide that provides a detailed explanation of the inner workings of the Commodore 128 including memory management. BASIC 7.0. I/O chip register, the operating system. system RAM. and more.
MAPPIN
THE COMMODORE
SI 9.95
Machine Language Routines for the Commodore 128 and 64
Toad Heimarck and Patrick Parish
ISBN 0-87455-085-8
592 pages
This collection ot machine language routines is a must lor every Commodore
128 ond M machine language programmer. Scores1 ol these routines can sim ply be inserted Into your own programs. Included is the assembly language
code with easy-to-understond documentation and Instructions. There is a
.companion disk available tor $12.95 fnof includes alt the programs in the book (858BDSK).
SI 8 95
Programme
ttie
COMMOD
Programming Ihe Commodore 64 Revised: The Definitive Guide Raeto Coiiln West
.CHINE
LANGUAGE
ROUTINES — KN THE -■■
COMMODORE
64/128
ISBN 0-87455-081 -5
642 pages
This bestselling. encyclopedic reference guide which covers ihe Commodore 64 in Its entirety has been updated to Include Information on the new Com
modore 64C and GFOS, from Berkeley Soitworks There is also a disk ovailabls for $12.95 which includes the programs in the book (507BDSK), S24.95
Mapping the Commodore 64 and 64C Sheldon Leemon
ISBN 0-8745&O82-3
324 pages
An update ot the beslseillng memory map and programming guide that's a necessity for intermediate and advanced programmers. This definitive
sourcebook has been expanded and now covers Ihe new icon-based GEOS
(Graphics Environment Operating System) with clear descriptions of how to make it work lor you. For BASIC and machine language programmers of both the Commodore 64 ond 64C.
Si 6.95
These books are now available at your local book or computer store.
You can also order directly from COMPUTEI by calling toll free 800-346-6767 (In NY call 212-887-8525) or by mailing your order to COMPUTEI Books, P.O. Box 5038, F.D.R. Station, New York, NY 10150.
Please include $2.00 postage and handling per book or disk. NC residents odd 5 percent sales tax. and NY residents add 8.25 percent sales tax. Please allow 4-6 weeks for delivery.
COMPUTE!' Publicationsjnac
COMPUTEI books aro available oulsido IhQ United Slates from
subsidiaries of McGraw-Hill International Book Company.
Introducing
BUDGET MASTER The Home Budget System For Ihe Commodore 64{disk required) II you want to gel serious ddouI keeping a home budge! and your Income Is less than 51.000.000 per year, then BUDGET MASTER is Ihe tool you need. BUDGET MASTER is
designed to help you define your budget
User Group
goals and then enter yaur actual data In only
a lew minutes each session. BUDGET MAS TER is 100% machine language for max imum speed and accuracy. FEATURES Up io B0 categories
■
Update
"" 10 accounts f 10 credit cards i' Integrated business expenses
"■ Enter data In foreign currency. ■• 2400-3600 record transaction file V Can search (or up lo 8 different sets ol parameters at the same lime
f Comprehensive analysis of your budget and .ii tn,!i ii.ii,i
Caroline D. Hanlon, Editorial Assistant
>' Full use ol function beys All this at ,i price that won't ■ Break your budget'
ONLY $24.95 + V? 00 Sfiippmg and Handling Minnesota residents add 6% sales tax
To order send check or money order to
EYCHANER SOFTWARE CO. P.O. Box 38S
Grand Rapids, MN 55744-0388 Commodore H is a IiaOemark ol CommocJoie Business Matin nes Inc
HLJDGEi MASTER is a trademark of Eycnarier Software Co
COMMODORE 64 SOFTWARE ONLY S5.00/DISK [J001 "011 [ 1027 IJ 035
LUSCHER COLOR TEST DISK FILE UTILITIES MUSIC AND SOUND BESTOFTPUG "1
IOSS BEST OF COMMUNICATION
This list includes updated entries to our annual "Guide to Commodore User Groups," which last appeared in the May and June 1987 issues. When writing to a user group for information, please remember to
enclose a self-addressed envelope with postage that is appropriate for the country to which you're writing.
Send typed additions, corrections, and deletions for this list to: COMPUTE! Publications P.O. Box 5406 Greensboro, NC 27403 Attn: Commodore User Groups
User Group Notes
Newark Computer Users Group (NCUG), Inc. has changed its address to 11 Allandale Dr., Apt. L12, Newark, DE 19713.
The correct address for South Orange Commodore Klub (SOCK) is 25401 Champlain Rd., Laguna Hills, CA 92653.
HOW BEST OF UTILITIES 067 BEST OF GAMES
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290 Via Culinas, Wwibkc Village, CA 9236!
COLORADO
Giipln Counly Commodore Users, 2881 Dory Hill Rd, Golden. CO B0403
Bo* 547326, Orlando, FL 32854-7326
Box
KANSAS Mid-Kansas Commodore Club, 1509 Hubbard Greal Bend, KS 67530
Southeast Louisiana Commodore Users' Croup
MISSOURI
Narm
Southwest Missouri Commodore Users Croup
1510 South St.. Aurora. MO 65605
BLACKSHIP COMPUTER SUPPLY 3B5 Oysler Point Blvd
#10
Souih San Francisco. CA 94080
NFW ZEALAND N.Z. Commodore User's Group ISIh Ak) Inc., P.O. Box 895. Papakura, Auckland, New
GIOKCIA
P.O. Bon U3B, Gray, LA 70359
Phont(
CANADA Canada UM 5E1
FLORIDA
LOUISIANA tip 0«_
Computer Users Group, 051 Merklinc. FTG Bo\ 1505, !;PO New York, NY 09593
Darrie User Group, P.O. Box 1028. Barrie, Ont..
Central Florida Commodore Users Club, P.O.
Savannah Commodore User Group, P.O 1171, Savannah. GA 31402-1171
ARMED Sl.ltVICtS U.S. Naval Station Guanlanamo Bay Cuba
NLIV YORK Elite Users Group, 151 DuBOis Avc, Sea Cliff NY 11579
WASHINGTON Kenlon Commodore User Group, 142 Blainc Avt NE, Renlnn, WA 98056
Zealand
rUIRTO RICO Guaynaho Commodore Users Club (GUC), H-15 Falcon St., Sierra Berdecia, Cuavnabo. P.R. 00657
STUBBIES, Calle 3 \12 Vega Baja Lakes, Vega Baja, P.R. 00763
_
Impossible Scroll I. Kelly
Even if you're a veteran Commodore 64 user, there may still be a few tricks that you haven't seen. Here's one—a program that puts fine-scrolling text in the screen border. A disk drive is required. Text resides within certain bound aries on the Commodore 64. It sits
in a screen "window" of 40 col
umns by 25 rows. The VIC chip al lows you to vary the size slightly—
the horizontal size can be changed to 38 columns; the vertical, to 24 rows. These changes were included in the VIC chip to allow smoothscrolling letters (or redefined char acters) to appear on the screen piece
by piece instead of popping onto the screen fully formed. But it is possible to trick the VIC chip into displaying text and graphics even further down the screen into the border's domain. "Impossible Scroll" does just that.
file with that name. Program 2, written in BASIC,
is a demo program that shows off the possibilities of Impossible Scroll. Type the program in and save it to the same disk that you used to save Program 1. When you're ready to see the demo, load Program 2 and type RUN. You'll see a scrolling message
below the normal limits of the screen.
values: Starting address:
C0O0
Ending address:
C307
Be sure to save a copy to disk before exiting MLX. Use the name SCROLL.ML when you save the program—Program 2 looks for a
or off the active portion of the screen. Normally, when a sprite leaves the active area, it seems to
pass below the border as it disap pears—the border has a higher pri ority than the sprites. Actually, the VIC chip keeps track of the sprite even when it is hidden by the bor der.
In
fact, sprite collisions can
happen oulside the visible area of the screen.
There's only one question re
maining. How can we turn off the border to see the sprites under neath? That trick involves the verti
cal fine-scrolling function of the VIC chip. With careful timing, we can confuse the chip. By setting the
SCROLY register at location $D011 lllinUDUCIND ROGUfill.
IIIC
JUST
iiEssnnE nr
IHTUSSTBLL
MATCH
SDRO1.L
HIE SCRHLLIHG
the rotidii.
iiote hoh it
hRttll ittTTRI-CRTHCi WITH A TEXT
P8I55 AKV
KEY
10
51 I
to 25-row mode and then switching
to 24-row mode in the last line of
AHAY
text {by using a raster interrupt), the
BJSPI.HV.
VIC chip never realizes that it
IS DELBH HIE HDEHAL OATH AREA,
Typing It In
Program 1 is written in machine language, so you'll need to type it in with "MLX," the machine lan guage entry program found else where in this issue. When MLX asks for a starring and an ending ad dress, respond with the following
bility of the 64. Sprites can exist on
MtlKf
should begin displaying the border. The top and bottom portions of the border disappear. {The left and right portions of the border remain,
THE
UIC-II
CHIP..
Display fine-scrolling text across the
bottom of the screen with this surprising technique, A demonstration program is included.
Sprites Only Where do these phantom charac ters come from? There's no memory
reserved for characters beyond the boundaries of the normal screen. The answer lies in the sprite capa
however.) By modifying the demo pro gram and using it in conjunction with your own routines, you can
make the most of these special vid eo effects. [Ed. Note: Because this program
takes the VIC-II chip beyond its de sign specifications, the display creat ed by this program may differ from one computer to another.] See program listings on page 86. W COMPUTE's Gazelle
September 1987
61
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Video Slide Show For The 128 Paul W. Carlson
Your graphics creations come to life with this versatile pro gram that loads and instantly displays a sequence of your best
hi-res and text artwork and your most impressive business graphics. Requires a disk drive. Slide show programs are useful for computer-club demonstrations, teaching, business meetings, or just
for showing off your artwork to rel atives and friends. "Video Slide
Show for the 128" allows you to display any number of hi-res, mul
ticolor, or standard text screens in any order.
.CRAM extension. For example, a text file named TEXT1 must have a color memory file called TEXT1
.CRAM. The last two numbers in each DATA statement select the codes for the border and back ground colors that you wish to dis
play with the screen. For your convenience, here is a list of color
Typing It In
codes:
To get started, type in lines 10-380
and 1000-1020 from the program listing and save the resulting pro gram to disk. The remaining lines
(400-450) comprise an example set of DATA statements for a fivescreen slide show.
When you're ready to make a custom slide show, load the pro gram and add a DATA line for each picture that you wish to display.
Follow the format of the example DATA statements. Each entry must begin with a letter code—H for hi res, M for multicolor, or S for stan
dard character mode. An X signifies
the end of the slide show. The next item in each DATA statement is the
BSAVE "fileitame",P716S TO P16192
For a multicolor display (GRAPHIC 3 mode), the video ma trix and bitmap are saved in one file and the color RAM is saved in an
other file. Use these statements: BSAVE "/i/e«ume",P1024 TO P16192
8 Orange
POKE 1,PEEK(1)AND254
1
White
9 Brown
2
Red
BSAVE"/i/enHmf.CRAM",PSS296 TO
3
Cyan
4
Purple
5 6
Green Blue
10 11 12 13 14
7
Yellow
15 Light Gray
Light Red Dark Gray Medium Gray Light Green Light Blue
I've included a sample subrou tine at line 1000 for introducing the
slide show. You can write your own if you like. If you'd rather just skip the introduction, delete line 20.
When you've finished entering the DATA lines for the screens you wish to display, save the program with a new name—you'll want to
keep the first program for making
color graphics screen or a text
Saving For Display
September 19B7
screen after the picture is displayed. For high-resolution displays (GRAPHIC 1 mode), only the video matrix and bitmap need to be saved. Use this statement:
Black
later slide shows.
COMPUTE!'! GbibIIb
something on the screen. Add lines to the program so that it saves the
0
name of the file containing the screen image. If the file is a multi screen, a file containing the color memory is also loaded. This file must have the same filename as the 64
picture file, with the addition of a
come in handy. To create a picture, you must begin with a program that draws
Before you can have a slide show, you must have pictures to display.
The I28's BSAVE command will
P56296 POKE 1,PEEK(1) OR 1
Be sure that the second filename
differs from the first only in the .CRAM extension. For example, if you use PIC3 as the name of the file to contain the video matrix and bit map, the name of the color RAM
file should be PIC3.CRAM. The .CRAM file should not be listed in
the DATA statements—the pro gram will look for the file on its
own. The first POKE statement causes the processor to use block 0
of color RAM when it executes the second BSAVE statement. (The pro cessor normally uses block 1 of color RAM, even when the VIC chip is displaying data contained in block 0.) The second POKE state ment cancels the first. For standard character mode
{GRAPHIC 0, the default mode), use these statements: BSAVE "filename",P1024 TO P2024 BSAVE "/i/«rame.CRAM",P55296 TO F56296
As for multicolor graphics
and load the next. Progress through the pictures by pressing any key.
How It Works
The 128 has two 64K banks of RAM and two IK blocks of color RAM.
mode, the second filename must be
The VIC chip can be instructed to
the same as the first, but with the
use either of the two 64K RAM
extension .CRAM. No POKEs are
needed because standard character
banks and either of the two IK blocks of color memory. The pro
mode uses block 1 of color RAM,
gram loads the display data into
the default. To use Video Slide Show, load
chip is looking at bank 0 and block
the program, make sure that all the files specified in the DATA state ments are on the disk in the drive, and type RUN. The introductory
screen will be displayed. After the drive light goes off, press any key to instantly display the first screen
bank 1 and block 1 while the VIC
command to change modes? The
reason is that the screen editor has to be disabled (the POKE 216,255 in line 70) so that the program can put display data in places other than where the editor expects to find it. With the screen editor dis abled, the program needs to do al! the setup work that the screen edi tor normally would do.
A substantial amount of the program does nothing but insure that the program terminates grace
0. When a key is pressed, the VIC
fully if an error is encountered. This
chip looks at bank 1 and block 1 while the display data is loaded into bank 0 and block 0, and so on. You may wonder why the pro
anything but a default configura tion, not even RUN/STOP-RE
gram contains so many PEEKs and
POKEs. Why not use the GRAPHIC
is necessary because if the program terminates while the video is in
STORE will clear it up.
See program listing on page 78.
•
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•HOtCE
SpeedSort Kjell Strand
This program alphabetizes large string arrays in mere seconds. Written entirely in machine language, it's a valuable utility for BASIC programmers who need to sort lists quickly. For the 64. In the past few years, COMPUTED Gazette has published several sort ing routines. The program "128 Quicksort" from the December 1986 issue runs on the 128. It al
phabetizes a list of 100 elements in 0.833 seconds; 1000 elements in 12.083 seconds. Another program, "UltraSort," is faster, sorting 1000
elements in 8.32 seconds. "SpeedSort" is even faster. Here are some sample times: 100 elements
0.15
seconds
1000 elements 2000 elements
1.883 seconds 4.133 seconds
3000 elements
6.583 seconds
SpeedSort was designed for a specific purpose and optimized for speed, so there are certain minor limitations you must remember. First, it works only on string arrays; you can't sort numeric arrays. Sec
ond, the string array must be onedimensional (only one number in parentheses); you can't use it to sort multidimensional arrays. Finally, you can tell SpeedSort where to start sorting within the array, but you
can't tell it where to slop sorting. It always sorts to the end of the array.
Using SpeedSort
Since SpeedSort is written in ma
chine language, it must be entered with the "MLX" machine language
entry program published elsewhere
in this issue. When you run MLX, you'll be asked for a starting ad
dress and an ending address for the data you'll be entering. For SpeedSort, use the following values: Starting address: Ending address: 66
C000 C2AF
COMPUTE'S Gazelle
September 19B7
SpeedSort is only 687 bytes long, so it shouldn't take long to type it in. When you have finished, save a copy of the program with the
name SPEEDSORT (the example program below looks for a file with
(3
memory with a statement of the
form LOAD "SPEEDSORT",8,1. From within a BASIC program, in clude this line as the first in the program:
1 IF A-0 THEN A = l: LOAD "SPEEDSORT",8,1
Anytime you want to sort an array, you have to tell SpeedSort
the name of the array and the start
sorted is number 1, you'd use SYS 49152,B$(1). If you'd like to begin sorting at element 0, use SYS 49152/B$(0) instead. You may also
start the sort at any other point
within the array—the tenth string, for example—and you may sort any
one-dimensional array currently in
INC."
PRINTTAB(10)"ALL RIGHTS [SPACE)RE9ERVEDB
DB
W=liLOAD"SPEEDSORT",a,l
50
JB 60
INPUT'MCLRlI DOWNJHOW MAN Y
PK
70
AX 80
RANDOM
STRINGS
TO
CREA
TE"jN DIMAS(N)iPRINT"lCLRj
(DOWN 1 CREATING HN"RANDOM [SPACE j STRINGS":A-RND(-T I) FORI=lTONiPRINTI;CHR$(14
5)iNl-INT(RHDll)*10+l)iA S="H:FORJ-1TON1
AD 90 BS=CHRS(INT(RND(l}*26+65 })iAS»AS+BSiNEXTiA$(I)=A Si NEXT
CR
100
PRINT"12 KEY TO
DOWNjPRESS
ANY
START SORT"
PK 110 GETSSiIFSS=""THEN110 EK 120 Tl=TIiSYS49152,AS(0)tT2 =Tl!pRINT"lCLRjI DOWN)DO
NE(2 DOWNj"
XC
130 MT$*.STRS((T2-Tl)/60)iPR 1ST N"ELEMENTS SORTED I
N"LEFT$[MTS,6}" SECONDS n
SC
140
PRINT"12 DOWNjPRESS ANY KEY FOR SORTED
ing point for the sort. If the array is
called B$ and the first element to be
PUB.,
AA 40
that name).
To use SpeedSort, load it into
SPACES)COPYRIGHT 1987
COMPUTE 1
[DOWN]" CC
150
CB
160
LIST
GETSSiIFS$ = B1"THEN150
FORI=1TON!PRINTAS(I)iNE XT
The example program builds an ar
ray of random strings of the size
you specify. If you enter a large
number, like 3000, be prepared for a long wait. Generating all those random strings takes much longer
memory.
than sorting them.
If you attempt to sort a numeric array such as A(l), you'll see a
ample program turns off the screen
TYPE MISMATCH ERROR. If you
include the name of a multidimen sional array such as A$(0,0), it will
For maximum speed, the ex
with POKE 53265,0 and turns it back on with POKE 53265,27. A note of warning: If you use this
program:
technique in your own programs and an error occurs while the screen is blank, the error message will be
FC
10
IFW-1THEN60
invisible, [f the screen blanks for
Q.F
20
BEM COPYRIGHT 19B7 COMPU TE1 PUBLICATIONS INC. -
too long, either press RUN/STOPRESTORE or blindly type POKE
ED
53265,27. See program listing cm page 83.
return a SYNTAX ERROR.
To test SpeedSort, run this
(SPACElALL RIGHTS RESERV
AD 30 POKE532a0,101POKE53281,l 0iPRINT"[CLRJ JBLK)
V
>°v*
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Program Appender Joseph R. Charnetski
This short utility—only nine lines—offers a quick and easy way to combine disk-based programs. For the Commodore 128, 64, Plus/4, and 16. A disk drive is required. After you've been programming for a while, you probably find yourself writing programs that contain rou
tines which are similar or identical to those you've written before. To
avoid retyping even short routines, many programmers keep a disk-
based library of frequently used routines; then, whenever these rou
tines are needed, they're appended to the program being written.
Although there are several ways to combine programs, the
technique common to each of these
involves moving the start-ofBASIC address to two locations be
low the current end-of-BASIC address. Then, after a second pro
gram is loaded into memory, the pointers are reset to the original
start-of-BASIC so the second pro gram will be added—or append ed—to the end of the first. The PEEK addresses required to deter mine the start- and end-of-BASIC as well as the POKE addresses to reposition the pointers are usually
performed in direct mode by the programmer. If several programs
must be combined, the repetitive PEEKs and POKEs can be tedious. There is an easier way. 66
COMPUTE'S Gazelle
September 1987
Quick And Easy "Program Appender," the short BASIC program accompanying this article, offers a quick and easy way of combining as many BASIC pro grams as you like, it works on the Commodore 128, 64, Plus/4, or 16 with a disk drive. Program Ap
pender uses the technique described above; however, you need only en ter the name of the program you wish to append—no PEEKs and no
POKEs are required. The pointers are automatically manipulated from
inside the program. The dynamic keyboard technique is used to load the program to be appended and to reset the pointers, which enables the programs to be combined.
To use the program, type it in using "The Automatic Proofread er," found elsewhere in this issue, and save a copy to disk. The pro gram works as is on the 64. If you're using a 128, you need to substitute the following for the first line of the program:
1
BU=1319:BC=239:S1=43:S2=4
4:A=PEEK(S1):B=PEEK(S2):C =PEEK(45):D=PEEK(46)
If you're using a Pius/4 or 16, sub
stitute this line: 1
BU=842:BC=208:S1=45:S2=46
:A=PEEK(S1)sB=PEEK{S2):C= PEEK(4624):D=PEEK(4625)
After you've saved a copy to disk, load the program and type RUN. You're asked for the filename of the program you wish to append. Type
it in and press RETURN. When the cursor reappears, the program has
been appended to the program in memory.
It's important to note that the first line of each program to be ap pended should have a higher line
number than the highest line num ber of the program in memory. You can run Program Appender again and again to combine many pro grams. When you finish using the program,
you can delete it from
memory by typing QUIT in re sponse to the filename prompt. You
can then save a copy of your com
bined programs on disk. Be sure to use a unique filename.
See program listing on page 83.
S
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Servicing, and more. If the card has been used, write to
NRI Schools. 3939 Wisconsin Ave.,
N.W., Washington, D,C, 20016.
SCHOOLS
McGraw-Hill Continuing Education Center 3939 Wisconsin Avenue, NW
Washington, DC 20016
_ , -m
t^'.W
We'll Give You Tomorrow. IBM Is a noontorW InOomiik of Inlnrnitlorut Sutlnni M.achino Comoralion
DOS Plus Michael J. Castor
This high-powered utility provides all the features of the DOS Wedgeâ&#x20AC;&#x201D;plus 16 additional functions, repeatability, and the ability to be customized so users can tailor it to their own
specifications. For the 64 with a disk drive. "DOS Plus" duplicates the com mands of the Commodore DOS
Wedge with the addition of ten com
mands, five assigned function keys, and an escape key. DOS Plus allows the user to load any file to any loca tion in random access memory
(RAM), or to save from any location in RAM. It provides a simplified
VERIFY command; a command which loads and runs a BASIC pro gram; and decimal, hexadecimal (hex), and binary conversion. DOS Plus allows you to specify default colors for text, border, and back ground. Finally, the program is com pletely relocatable. Instructions are
given below for the user who wants to customize the commands to suit his or her own taste. All of its com mands can be executed from within
a BASIC or machine language (ML) program. DOS Plus doesn't affect the speed of BASIC programs, and it uses the same amount of memory (IK) as the DOS Wedge.
run it as if it were a BASIC program. Instructions are given below for saving DOS Plus after it has been created by the relocator.
Although DOS Plus is IK (1023 bytes to be precise) of pure ML, the program listed is a 1.5K program
called a relocator. When it is run, it moves DOS Plus into memory and activates it. To type in the program,
you'll have to use "MLX," the ma chine language entry program found elsewhere in this issue.
mands require the at symbol (@) in
the first space of a line, followed by
parameter is to follow a value, one
the command letter or character.
space must separate the two. If
Some commands require additional
DOS Plus doesn't understand a val
parameters.
ue, an ILLEGAL QUANTITY ER
The text parameter is any string of characters. DOS Plus doesn't check the string for correct syntax, but simply uses it as given.
ROR message is returned.
The name parameter represents
the name of a file on disk. Any text
found within quotation marks will
@text
@/3
"GAME"
PRG
rectory listing which indicates file
length in blocks; it is ignored, as is PRG. If no quotation marks are found, all text following the com mand is considered to be a file
name. Thus the following example also loads GAME: @/GAME
load "
GAME" rather than
@/ GAME
Note also that quotation marks
take precedence over other text. Thus @/GAME" would result in a
September 1987
displays it. Sends the string text to the drive command channei. For example, to rename a file you might use @R0: NEW = 0:OLD.
@$text Lists the directory of the disk on the
screen. Pressing the space bar will freeze the display, after which pressing any key will continue the listing. Pressing RUN/STOP will end the display. The text parameter is an optional string of characters
Note that leading spaces are
DOS Plus relocator, just load it and COMPUTE'S Gazene
@
lows you to use a directory listing. For example, the following line will load GAME into memory:
disk before running it. To run the 70
DOS Plus Commands The following is a detailed descrip tion of all DOS Plus commands. Also refer to Table 1. Reads the disk error channel and
"GAME":
relocator, be sure to save a copy to
%1100000000000000 as the same
be considered a filename. This ai-
Starting address: Ending address:
After entering the DOS Plus
parameters represent numeric val
value. Values must not have lead ing spaces. If, however, another
tial prompts as follows: 0801 0D30
the quotation marks, but doesn't.
One last note: Trailing quotation marks are not necessary except to exclude unwanted information like PRG or to include trailing spaces. The address, number, and value
DOS Plus Commands
There are 19 commands recognized by DOS Plus (see Table 1). All com
considered part of the filename so that the following example would
When you run MLX, answer the ini
Plus tries to find a name following
ues. DOS Plus accepts values in decimal, hexadecimal, and binary, so it recognizes 49152, $C000, or
The 3 is a remnant from the di
Typing It In
missing filename error, since DOS
defining a limited directory listing. Examples:
@S @$:?DOS @$:'-P
@/name Loads a BASIC program. When this is done, the end-of-load address is displayed. This is the address, plus one, of the last byte loaded.
(
Loads a BASIC program and then
Instead, DOS Plus locates the file name, adds SO: to the front of it and
runs it.
sends it to the drive's command
@-mime
channel. This enables you to use a directory listing to scratch files. For example, the following will delete
Saves to disk the BASIC program in memory. When this is done, the disk error channel is read and
GAME from the disk:
displayed.
@S
@?name
However, S0:GAME will try to scratch the file 0:GAME because DOS Plus actually sends the com mand S0:O:GAME to the drive.
Compares the BASIC program in
memory to the file on disk named name. When this is done, the end
ing address of the disk file is dis played. If this value isn't the same as the ending address of the pro
gram in memory, a 7VERIFY ER ROR message is printed. @%name
Loads a program file into memory at the address from which it was saved, after which the ending ad dress of the load is displayed.
@\addressl address! name Saves the contents of memory from addressl to address! minus one. The error channel is then read. For
"CAME1-
PRG
@Zname
starring at the file's load address.
The ending address of the disk file is displayed, followed by 7VERIFY
ERROR if the data read from disk doesn't match the contents of the corresponding area of memory. @*address name Loads a file into memory starting at the specified address. After the file is loaded, its ending address is
displayed. @;address name Compares a file with memory, starting at the specified address The ending address of the file is dis played, followed by a 'VERIFY ER ROR message if the data read from
disk doesn't match the contents of the specified area of memory.
fl f2
Displays the defaull colors. Makes the colors currently on the screen the new defaull colors. Changes the tent color. {Ml 1000 color-memory nybblea are set to this
A Program
ML programs start at their load ad dresses) or when you are using DOS Plus to copy non-BASIC pro gram files as described below. @
number determines which drive
@;name Compares a disk file with memory,
gray.
guage program's SYS address (most
@!$CC00 SCFFP .DOS
$CFFE, not $CFFF.
respectively, white, black, and dark
fi
example,
.DOS as the filename. Note that the last byte saved would be the one at
ground, and border) which you pre fer. Their default values are,
Displays the load address of a file. This is the address at which the file will start loading if you LOAD "name",8,l or @%name. This com mand is especially useful when you can't remember a machine lan
Sets the DOS Plus device number (normally 8) to number. The device
would save DOS Plus to disk with
the - key. Both insert and quote modes are then canceled. Color Keys. Five function keys (fl, f2, f3,15, and f7) are given func tions to ease the changing of colors on the 64. The selected colors are those display colors (text, back
DOS Plus will access. The most
common number for a second disk drive is 9.
f5 f7
color.) Changes the background color. Changes the border color.
Using DOS Plus In DOS Plus is primarily an immedi ate-mode utility, to be used outside of program mode. It can, however, be used while a program is running,
either from the keyboard or from the program itself. Most BASIC and many ML programs will leave the IRQ vector unchanged when they are run, thereby allowing you to use DOS Plus's escape key and color keys.
Occasionally this could cause prob
@Q
Deactivates DOS Plus commands and functions. @F Turns on the IRQ-driven functions which are deactivated by RUN/ 5TOP-RESTORE. It also automati
cally displays the default colors.
lems. If you experience difficulty, use the @X or @Q commands to deactivate them. To use a function key under program control, the following sub routine can be used: 10 POKE 631,ASC("fcey"):POKE 198,
(See fl below.)
I:I = TI
@X Disables the IRQ-driven functions.
30 POKE 198,0:RETURN
@ = value Converts a hexadecimal value (with the symbol $ as a prefix) to a deci mal value (with no prefix), a deci mal value to hexadecimal, or a
binary value (with the symbol % as a prefix) to the default numeric type (see below). For example,
@=$CC00 will return 52224.
DOS Plus Functions
@Sname
When the IRQ functions are activat
Deletes from the disk the file named name. This command doesn't actually exist in the DOS Wedge, which requires that you send a scratch command to the disk
ed, as they are when DOS Plus is
first RUN, six keys perform special functions. These are five color keys and an escape key.
drive's command channel. Thus,
insert mode in the 64's screen edi
the only way to scratch a file with the DOS Wedge is to enter S0:name.
tor, you can easily escape by hold
Escape Key. When in quote or
ing down the CTRL key and pressing
Insert any function-key symbol be tween the quotation marks in line
10. The program simply pokes the key into the keyboard buffer and
then waits for an IRQ to perform the function. It then removes the key from the buffer. Using DOS Plus commands
from a BASIC program is also quite easy. Simply POKE the text of the command into the INPUT BUFFER and then call DOS Plus to execute it. The following program illus trates this by requesting a DOS command and then executing it. 10DC$-"":INPUT"DOS COMMAND";DC$ 20 IF DC$-=""THEN END 30 FOR L = l TO LEN(DCS)
40 POKE 5I1+L,ASC(MID$<DC$,L,1)) 50NEXT:POKES11 + L,0 60 SYS 52224 + 3;GOTO 10 COMPUTBs Gazette
September 1987
71
As written, the program re quires that a character precede the
@
address of DOS Plus, wherever it is
@/name
The address for the SYS is the base located, plus 3.
Function Rend error channel *
@text @$text
Send command * Display directory • Load BASIC program ■ Run BASIC program *
@-name
The DOS Wedge, like nearly all ma chine language programs, is made
to exist in one, and only one, area of memory. Attempting to run it after
loading it anywhere other than $CC00 will cause it to crash. DOS
Plus, however, is moved into mem ory by the relocater program, which alters it to exist at any memory address.
Relocating DOS Plus is easy.
First, load the relocater program.
Do not run it. Instead, list it. The following will appear on the screen: 52224 SYS2132
The line number is the address where DOS Plus will be located. Changing the line number changes the address. It's that simple.
If you don't care to resave the relocater, you may type NEW and then reenter the line. If you wish to resave the relocater, enter the cur rent line number alone and press
RETURN. Then reenter the line with a new line number. Finally, save the relocater under a different name.
Customizing DOS Plus If you prefer different commands,
colors, or keys, DOS Plus can easily be customized to suit your tastes. The relocater program can be changed in three ways: by changing the location of DOS Plus in memo ry, by setting the device number and the selected colors, and by changing the command codes themselves.
Within the relocater program is a table which holds values used by DOS Plus. The addresses and de fault values are shown in Table 2. By changing these values with POKEs and then saving this modi fied relocater you can make your own version of DOS Pius. Some words of caution are in order, how
ever. First, you should not change any of the values in. the table to zero. Zero is used as a specialpurpose flag by the relocater. Sec ond, be certain you're POKEing in COMPUTEI's Gazette
Command
@\name
Moving DOS Plus Around
72
Table 1: DOS Plus Commands And Functions
actual command. That character, normally @, is POKEd into 512, but is not checked by DOS Plus. A zero byte must follow the command.
September 1987
Save BASIC program • Verify BASIC program
@?name
@%name
Load ML program '
@! address I address! name
Save ML program
@:name
@F
Verify ML program Load at address Verify at address Scratch file Display load address Set device number * Quit (exit) DOS Plus* Turn on IRQ functions
@X
Turn off IRQ functions
@ rvalue
Perform value conversion Display default colors
@* address t ame g); address name
@Sneme @tname @#tiumbeT @Q
fl
a
Set default colors
13 (5
Increment text color Increment streen color
(7
Increment border color CTRL-Escape key (•} indicates DOS Wedge command.
Table 2: DOS Plus
Memory Map
Location
Value
Default
Description
2230
Hex
Numeric output type
2231
128 8
8
Device number
2232
1
White
Text color
2233
128
Black
Screen color
2234
11
2235 2236
64
Dark Gray @ CTRL--
Border color Command character Escape-key character
2237
36
$
Directory (can't change)
223S
47
/
Load BASIC program
2239
37
2240
94
% T
Load ML program Run BASIC program
2241
42
*
Load at address
2242
63
2243 2244 2245
83
S
Scratch
Q :
2246
81 58 59
Quit Verify ML program Verify at address
2247
95
2248 2249
33
!
Save ML program
F
Turn on IRQ functions
2250
70 35
#
Set device number
2251
61
2252 2253
92
£
Display load address
88
X
Tum off IRQ functions
6
Verify BASIC program
Save BASIC program
Numeric conversion
the right place. Finally, be sure to use a backup of the relocater, just in
porarily by the @# command. This value will usually be 8 or 9. The next three bytes hold the
case.
The first byte in the table determines if numeric values such as
default colors, changed temporarily by f.2. POKE these locations with
load addresses, ending addresses.
values 1-15. Since you can't use
and binary ronversions will be displayed in decimal or hex. A value greater thar 127 will select hex.
zero, use 128 for black. The last 19 bytes hold the
The second byte holds the de-
the escape key, and each DOS Plus command. By changing these val-
fault device number, changed tem
codes for the command character,
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Customer Service: 503/683-1154
ues, you can modify the program to
use @L instead of @/, or >$ in stead of @$. The values POKEd here must be Commodore ASCII codes for the desired characters. You can look up the values in charts in the Commodore 64 User's Guide or you can type:
$CFFE, do the following: Find the load address of PROG using the command @£PROG
DOS Plus responds with the num ber $CCO0. Load the file using the command
whose ASCII code you want to
POKE. You must take care that the
DOS gives an ending address of
SCFFF. Save a new copy of the file using the command
code you POKE isn't one recog
@!$CC00 SCFFF PROGl
nized by the disk command chan
Note that the ending address is used to set the end of the SAVE. In
nel. If it is, DOS Plus prevents you from sending that disk command because it believes that you are giv ing it a DOS Plus command. Table 2 is a complete memory map of the locations you can change in the DOS Plus Telocater program. Note that $ cannot be changed since
the $ is part of the filename sent to the drive to load a directory.
Copying With DOS Plus Using DOS Plus to copy nonBASIC program files is easy. To copy a file named PROG which re sides in memory from $CCO0 to
Emerald Components International
Dept.C.PO Bo« 1441, Eugene,OR97440 customer service: 503/683-1154
the IRQ vector CINV at $0314 are altered so that they point to the equivalent DOS Plus routines. The original value found in ICRNCH is saved by DOS Plus so that control is passed to the previ ous ICRNCH routine if a line does not start with @. This allows DOS Plus to work with BASIC exten
PRINT ASCC'character")
where character is the character
$209!
practice, the names and values will
differ, but the procedure won't. Note that files which load under ROM cannot be copied using DOS Plus.
Technical Information DOS Plus is designed to work with
most BASIC extensions, utilities, and BASIC and ML programs. The
following information will help you determine compatibility.
sions which alter ICRNCH, provid
ed that DOS Plus is activated after the BASIC extension. The CINV vector is not saved
by DOS Plus. Instead DOS Plus calls the standard IRQ routine. Any utilities that alter this vector must,
therefore, be activated after DOS Plus.
DOS Plus uses very few mem ory locations. Those that are used are various Kemal variables and the following locations: $07, $08, $0A, and $14-$15. DOS Plus uses them in the same way BASIC uses them
so there is little chance of inter ference. See program listing on page 85.
"
DOS Plus changes two vectors when it is activated. The tokenization vector ICRNCH at $0304 and COMPUTE'S Gazette
September 19S7
73
Screen Dump Set For The 128 John Muggins
Although these programs for the 128 are short, they do a lot. You can print out a hi-res screen, two screens side-by-side,
portions of a screen, or sprite shapes. Requires a seven-pin Commodore printer (1525, MPS-801, or MPS-803; or either MPS-1000 or MPS-1200 in Commodore mode).
screens will be acceptable. It's im portant to remember that the fore ground color will appear in black
ink. 1/ you draw a white circle on a black background, the printout will seem to be reversed, because white is the foreground color on the screen.
One of the 128's strengths is its
der to run, the other four programs
plethora of powerful graphics com mands such as CIRCLE, BOX, DRAW, and others. They make it
require this SCREENDUMP.ML file. Programs 2-5 perform the screen dumps. After typing in and saving Pro
ilar to Program 1, but it prints two
tion artwork. But there's no easy way to print out the finished screen. Other computers have a built-in command (or key on the keyboard) to dump the screen to the printer. Not the 128. You can draw shapes
gram 1, run it. Type DIRECTORY
gram, Dual Dump does not allow
(or press the f3 key) to make sure that a program file called SCREEN
you to use a screen in memory;
DUMP.ML has been created. You
disk. The next prompt asks if you
may now use any of the screen dump programs. Note that you
want the screens to touch each oth er or to have a space between them.
and pictures on the screen, but you
should type and run all of the pro
Respond by pressing T or S. The
can't transfer them to paper.
grams from
program proceeds to BLOAD and
easy to create detailed high-resolu
128 mode, and that
Program 3, Dual Dump, is sim screens side-by-side. First you're
asked for the two filenames for the hi-res pictures. Unlike the first pro
both graphics files should reside on
Programs 2-5 must be stored on the
print out both screens.
this problem. The first, "128 Screen Dump," prints out a hi-res screen. "128 Dual Dump" prints two pic
same disk as the SCREEN DUMP.ML file.
also requests a filename. If you type
Program 2, 128 Screen Dump,
nothing and press RETURN, the
tures next to each other. "Window Dump" allows you to set the upper
begins by asking for a filename.
program assumes you wish to print
Specify the name of a hi-res graph ics screen image that you have
the picture currently in memory.
BSAVEd with a starting location of
must mark the corners of the por
S1C00 (decimal 7168) or $2000 (8192). The screen loads into the hi
tion you want to print. Press (or
res area, and the hi-res screen
ic keypad to move the sprite point
dump is sent to the printer.
ers around the screen. The 5 key is
A few short programs solve
left and lower right comers of the region to be printed, and then it prints out just that portion of the
screen. The fourth program, "Sprite Dump" prints the current patterns of the eight sprites.
If you fail to provide a file
Program 4, Window Dump,
Before the screen dump begins, you
hold down) the keys on the numer
neutral. Each of the eight surround
ing keys represents one of the
Typing Instructions
All five programs are written in
name, the current contents of hi-res screen memory are printed instead.
BASIC 7.0. Program 1 creates a ma
Screens created in GRAPHIC 1 (hi
per left corner, press ENTER to set
chine language program called SCREENDUMP.ML on disk. In or-
res) mode look the best, although GRAPHIC 3 (multicolor hi-res)
right corner and press ENTER again
74
COMPUTEI's Guzotto
Septembsr 19B7
points of the compass. Pick the up
the position, then pick the lower
DISCOUNT
to set that position. The portion of
FREE
the screen within the specified boundaries is then printed out. Oc casionally, you'll discover that the sprite pointers have been changed,
especially if you load both the color and bitmap memory from a screen drawn on the 64. If the sprite
shapes seem to turn to garbage, add POKE 8184,56: POKE 8185,57 just after the BLOAD in line 180.
The final program, Sprite Dump, prints out copies of the pat tern definitions for all eight sprites. As with the other programs, press
ing RETURN at the filename prompt will cause the program to
work with the shapes currently in memory. The sprites should be stored in the default locations, 3584-4096. Use this program with caution; it destroys any high-reso lution screen currently in memory.
SOFTWARE and
Leroy's Cheatsheet
COMMODORE 64 ABACUS Basic Corrpiler 64 Cad Pac 64 Chan Pa* 64 Cobcl64
Carman Sand ions Grphc Libraries ea
CHEATSHEET
S3D
EIM Help Book
SS6 S30
Transformers
S2S
Shanghai
S 30
1541 Algnmont KS
$ 33
S IS
PockerFiW 2
% 45
Poekol WrilarE
$ 45
PocKel Planner 2
BERKELEY SOFTWOSKS GSOS 142 Dustpack 1 sis Fomaack 1 I 22 GeoCafc $38 GeoFre $ 36 GfjoDar S 28 Wihsrs Workshop 5 36
S 4S
D^flal SuBurpack Pockai Dictionary
EPYX Fast Lead (can]
9 inside A out
Leather Goddosses
adds 128 (because the printer ex
pects characters in the range 128-255). See program listings on page 88. ■
$ 37 $ 22 $ IB
152
MICROSPHERE Cath'in Cash-ou!
$ 37
$59
PERSONAL CHOICE lamTh«C12a $27
$ 26
PROGRESSIVE
J 37 $ 30
Bobi Term Pro 128 Supoibaqa 128
$ 16
$59 $75
Super scroll 28
$60 $67 $67
5 30
Partner 64
5 45
WordWnurS
s 37
PROFESSIONAL Fleet System 4
SwiitOale w'Sidoways 5 30 Sylvia Porw Fin Plnr I 37
I
Don't lorgol to lolocT your
whan ordering a program of
S2S or mor#.
SSI
TIMEWORKS
Data Manager 129 Partner 129 Sw.fic.ilc 129 Word Writer 129
$30
$50 $90 ISO
\ File Foldor, Floppy Disk, Micro Disk, Shipping Labels, notary \ Index Cards, Continuous Envolopos, and 2 slios ol Hand
yj\
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. Oiai 500 labois Inciudod In
ii=f:Vl^i']laa*T!l- compaliblo with Data Manafjar i IS, Data Manager 2, Fleet Filer, Superbase, Consultant S
i
Word Processors such as Easyscrlpt,
Paperclip, or Fleet System.
■■
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PLASTIC LAMINATED
$7.95 each
Most Commodore printers, however, have only seven pins in
divides the byte values by two and
G EOS 128
Advanced program do.slgn.ad specifically lor making labels. Pro-doElgned
text-screen character.
columns of pixels. The ML routine
$37
BERKELEY
\ layouts lor 10 dilforont lypos Indndlng: Sid. labels, Audio Cussotlo,
which occupies the same space as a
screen image plus four trailing de scriptive bytes. So, to create a hi-res screen dump for the 128, start at the right edge and just SSHAPE seven
Super Pascal 12S ACCESS Mach 128 can.
Software by Leroy
are stored in memory. The 8000byte bitmap is arranged as 25 groups of 320 bytes. Each line of 320 bytes is further divided into 40 groups of 8. The 8 bytes (64 bits) correspond to an 8 X 8 pixel area
the characters are just a copy of the
S30 $44 144 $44
Super C
Label Maker™
dump routines is the way screens
hi-res screen into a string. If you ex amine the contents of the string with ASC and MID$, you'll see that
$44
Coboi12a
fBU loroy't Choatihool
The greatest stumbling block in writing high-resolution screen
saves a rectangular shape from the
Gala Manager 2
$35 $ 22
$44
Cod Pao 128 Churl Pali 139
Vuastar
TIMEWORKS
I2E
MICROPROSE unship opGunnor
How It Works
eliminates this problem. SSHAPE
Scenary disks {each]
S zo 5 30
1NFOCOM
"
add to your own programs.
The 128's SSHAPE command
SUBLOGIC Fi.ght Sjmulaloi II Jet
5 30
P.S. Graphics *t,#Z, or #3.[5ii™.rj) Mavie Monster
BOOKS OH CEOS Abacus
vert them to subroutines you can
becomes quite a chore.
Cen it tale Library • I
Chsssm aster 2000 S 3D Legacy of tha Ancianls S 22
Although these programs are
right number of bits from the screen
Certificate Maker
$ 75 5 14
ELECTRONIC ARTS
written as stand-atone applications, it should be a simple matter to con
their printheads. Collecting the
SPRINGBOARD Newsroom Cip Art Vol • lot 13 Clip M* 2
DIGITAL SOLUTIONS
Daia Diski leacli)
Basic 7.0 Compiler
SIMON & SCHUSTER Lovejoy's S.A.T. S 52 StarTfek-Kobayflshi $ 30 Typing Tutor 3 $ 3D
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ABACUS
PROFESSIONAL Fleel System?. $ 42 Flael Filer $ 3D Trivia Fever r*4-ri*Wi] $ 1 2
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J37
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ACTIVIStON Hacker 2 Portal
Sjporacial 61
Pint Shop Companion 3 26
$30
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S 29
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j ol $25.00 or more you flO! a
PLUS - on any s hoice1 See below PRECISION
e carry a complete Fine nf I FflFF I BRODEHBUND
ForyourCOMMODORE 128™
ForyourCOMMODORE 64*
Put Your Program's Commands Where They Balonfl ■ And Vour Manuals On Ttio Shelf. Have yau evorsal at your compulerwiih the manual in your Lap trying lo lindan elusivo command? How mucn
time have you tost searcnirvg through manuals to relresn your memory on do™ to do what you wanted? Now you have a way to end Itial frustration - Leroy's Cheatsheets.
Leroy's Cheatsheets help you get into your program right away.
We put the commands right at your
linrjeriips. actual keystrokes are in bald type, variables are shown in nates. Designed by solware eiperts, our
rJuraBle plastic lamiraled overlays are comprehensive reference aids which document a product or system completely. Now use your software more easily and more effectively. With Lero/s Chealsheets you'll never have To hunt lor a program command again!!!
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COMMODORE 128
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80-Column Magic For The 128 Mark W. Pemburn
Add several useful features and special effects to your 80-
your 128 in 80-column mode, then BLOAD MAGIC. Now, type in the
program. A demonstration program is included to show you
following BASIC program lines:
column BASIC programs with this powerful machine language
how to use the routines in your own programs. A disk drive is required.
30 SYS 3163,31,3
The 80-column display of the 128 is a new frontier for Commodore
Easy Access
grammers are beginning to do truly
Part of the machine language pro gram allows for easy access to the VDC chip via the SYS command.
amazing things with the VDC (Vid
On the 128, SYS allows for parame
eo Display Controller) chip, which controls the 80-column display. "80-Column Magic For The 128" lets BASIC programmers share some of the power that's available. We'll be going well beyond what's
ters to be passed directly to ma
owners. Machine language pro
possible in BASIC 7.0.
Multiple windows that can dis appear without a trace, screen flip ping, and more are possible with 80-Column Magic. First, type in Program 1. Since this is a machine language program, type it in using the 128 version of "MLX," the ma chine language entry program
found elsewhere in this issue. When MLX asks for starting and ending addresses, respond with the following values: Starling address:
0B00
Ending address:
0CS7
When you've finished typing in the
program, be sure to save a copy to disk with the name MAGIC. (Pro gram 2 looks for a file of this name.) 76
10 SYS 3163,18,0 20 SYS 3163,19,0
COMPUTE'S Gazette
September 1987
chine language programs. The syntax of the command which al lows you to write to the VDC is: SYS 3163,VDC register number.value
The VDC has 37 registers
numbered from 0 to 36, but we'll be using only a few of the registers here. (For more information on the usage of all the VDC registers, refer to Mapping The Commodore 128 from COMPUTE! Books.)
Swapping Screens The VDC chip has its own 16K of memory that cannot be accessed by
the rest of the system, so you can not use PEEK and POKE to directly view or alter this video RAM. The RAM is organized like this: SO0OO-SG7FF
Screen memory
50800-SOFFF
Attribute memory
S1O00-S1FFF
Free spare
S2O00-S3FFF
Character definitions
Let's see what's possible. Boot
Run the program in 80-column mode. You'll see the letter C (which
has a screen code of 3) in the upper left corner of the screen. Register 31 gets the value we
wish to place into video RAM and writes it to the address pointed to in registers 18 and 19. (Register 18
holds the high byte of the address, and register 19 holds the low byte.) With the C still on the screen, change line 10 to read SYS 3163, 18,8 and run the program again.
You are now changing attribute memory. The C turns blue (color 3).
Change the 3 to a 19 to get an up percase blinking blue letter. Try
values from 0 to 255 to see all the variations. In addition to the WRITE com
mand, Program 1 also supports a READ command. Try this: 10 SYS3151,,30 20RRF.G A:PRINT A
These lines print the contents of VDC register 30.
Unfortunately, it would take a long time to do anything useful from BASIC with these two rou tines. For this reason, my machine language program also contains
routines to move whole blocks of memory at machine language speed.
BANK 1 memory. For the high byte of the address, use a number no
Program 2 is a BASIC program
lower than 6 and no higher than 239. Be sure to use increments of 16
which demonstrates the power of 80-Column Magic. Type it in and save it to the disk which contains
for the various screen storage areas
Program 1. Then, load and run it (it
other. For example, if you wanted
loads Program 1 into memory).
to buffer three screens, you could use 6, 22, and 38 as the high byte of the address. Use SYS 2970,16,addreBB high byte to move the free
Lines 710, 730, 790, and 810 contain
four SYS calls that move large
blocks of memory. The first two move screens within the address space of the VDC, while the others move memory from the VDC to the 128's RAM or vice versa. Let's take a close look at each one of these calls. SYS 2816,0,16. This copies the en tire 80-column screen (including at tribute memory) into the 4K free
so the screens don't overwrite each
into location 254. Typing SYS 2890,8,16 will change all those at
$0FFF>.
tributes in VDC screen memory
SYS 3062,16,address high byte.
This call moves a screen from the 128's BANK 1 memory to the free area of VDC video memory. If
SYS 2816,16,0. This is the same op
memory with this SYS, and then
SYS 2970,0,address high byte. This
attribute or character. For instance, you could turn all blue characters into flashing yellow characters. Before using the SYS com mands that perform these tasks, you must POKE the code of the ex isting attribute or character into location 253 and the code of the re placement attribute or character
stead of the screen memory ($0000-
you've saved a screen with SYS 2970, you can move it into free
screen from the free space area into the screen and attribute memory of the VDC.
attribute or character to a different
video memory ($1000-$lFFF) in
space in the VDC's video memory. eration in reverse—'it copies a
stantly change all occurrences of an
you can quickly move it into the screen memory with a SYS 2816,16,0.
that match the value in 128 memo
ry location 253; it changes them to the value in location 254. SYS 2890,24,32 changes the attributes of a screen stored in the free video RAM. To change all occurrences of one character to another character, SYS 2890,0,8 or SYS 2890,16,24 for the screen in free video memory. See program listings on page 84.
O
Fast Change
call moves the screen from the
Two other SYS commands are used
VDC's video memory to the 128's
in the demo. They are used to in
Modifications and Corrections
• In "Fraction Practice" (Junc), no matter how you answer the "DO YOU NEED INSTRUCTIONS (Y/N)?" prompt, the program will
display the instructions for how to
NT:SS-"(4 SPACESl":ES= "■1:FS=ES:TBS=ES RQ
1300
S(TBS,17)ES"B"SS"ItlSS11 N"SS"GMSS"0"FS:PRINT#4 DD
1305
IFDV=3THENPRINT#4,"
KH
1320
PRINT#4,LEFTS(TB$,TB);
FK
1330
play the game. Simply add the fol lowing line to correct the problem: RF
55
IF LEFTS(IS,l)o"Y"THEN
(SPACE)180
(June) are apparently too small for some of our readers, one of whom
has suggested the following modifi cation for creating larger cards: DV=4:TBS="{17
SPACES)"
:PRINTCHRS(147):PRINT;
TB=12:SS="[4 SPACES}" BF
1115
ES=CHR5(14):FS=CHRS(15
JiGOTO WIDE,
MC
1120
1150:REM NORMAL
{2 SPACES)B";SS;"I";SS ;HN";SS;"G";SS;"O"
PRINT#4,LEFTS|TBS,TB); ES;D$;FS
• The cards printed by "Bingo"
DO. 1110
IFDV=4THEtJPRINT#4,LEFT
DOUBLE
TEXT
I)V=3:TQ=7: PRINTCHRS (14
7)|CPS:PRINT:PRINT;PRI
SF
1335
IFDV=4THENPRINT#4,LEFT
AQ
1340
ES BS
1400 PRIKT#4,""";FS 1410 PRINT#4,LEFTS(TBS,TB);
CB
1415
E$;DS;FS IFDV=4THENPRINT#4,LEFT E(TBS,TB);ES;DS;FS
MC
1420
NEXT
RS
1430
PRINT#4,LEFTS{TBS,TB); E5;C$;F$
S(TBS,TB);ES;DS;FS PRINT#4,LEFTE(TBS,TB); ES;
• Several readers have requested information on how to use "SpeedScript Date and Time Stamper" and "Preview-80" together since each of these programs has its own load
er to boot SpeettScript, Unfortunate
ly, these two SpecdScripl utilities occupy the same area of memory and cannot be used concurrently. • The program listings for "Power BASIC: Text Framer" (July) are labeled incorrectly. The listing labeled 128 Version is actually the 64 version, and vice versa. Ql
I
Lines 1230 and 1240 also need to be deleted. COMPUTEIS Gazotla
September 1987
77
(1)AND251
BEFORE TYPING . . .
RG
URN
KG
Video Slide Show
POKE48,64:CLR:TRAP360 REM
COPYRIGHT
TEl
PUBLICATIONS
1987
COMPU
INC.
-
[SPACE}ALL RIGHTS RESERV
ED
FC
30
PRINT"[CLR](2 SPACES}COP YRIGHT
1987
COMPUTE I
370
PUB
IFFL-1THEN1320
;CHRS(34):"
QA 240 LNS(1)="****"*"*"**""*
NOT
PRINTERRS(ER):END H,PIC1,2,0
410
DATA
M,PIC2,0,0
420
DATA
M,PIC3,1,1
430
DATA
S,PIC4,0,0
XM
440
DATA
I[,PIC5,9,0
XQ
450
DATA
X
ME
1000
IRST
290
(SPACE)LIGHT GOES OFF"
POKE216,255:POKE 56576,PE EK(56576)OR3
Article on page 33.
GM
80
GOSUB210:IFT$="X"THEN190
BX
90
BLOAD(FS),BllB=l
EB
100
";:RETURN
:RET URN
REM
COPYRIGHT
IFTS<>"H"THENPOKE1,PEEK
TEl
PUBLICATIONS
OAD(F?)
ED
KS
20
PM 30
0
BC
1987
-
RM
320
RIGHTS
MQ
330
FG
BB
180
GOTO80
CD
190
POKE216,0:POKE217,0:POK
STOP
PH KD
200
El,115 POKE54534,4:COLOR0,12:C 0LOR1,14:COLOR4,14:GRAP
01):OPEN15,8,15!V=53248:
CD
210
BR
220
70
EYA?:RETURN
80
CC
230
POKE54534,4:POKE216,0jP
SD
90
GRAPHIC0,1:PRINTCHRS(14
OM
240
KJ
250
print"press
BA DB
260
iGETKEYAS TS="X";RETURN
7);"FILE TYPE NOT H, OR
270
M,
any
key to
{spaceJexit program..."
IFB=0THENPOKE1,PEEK(1)A ND253:ELSEPOKE1,PEEK{1}
JP
280
JP
290
GA
300
32 IFTSC"M"THENPOKE53270,P
RB
310
PB
330
7B
390
140
HAVE CHOSEN
A DATA"
PRINT"DISKETTE.
SURE YOU
ARE
WANT TO
[6 SPACES)DO THIS
YOU
(Y/N)
?":GOSUB1710
AC
400
GETDS:IFDS=""ORDS<>"Y"A NDD?O"N"THEN400
RB 410 SM 420
IFD?="N"THEN220
PRINT"{CLR}f2 DOWN) (WHTjlNSERT YOUR DISK I
GG
460
PRINT"{CLR}(2 DOWN] (CYN}(RVS)...FORMATTING
QG
470
GOSUB1660:GOTO220
HS
480
INPUT"[CLR)ENTER TIME O DAY
|HHMM)";AS:IFVAL(
FD 160
450
D
DISKETTE"
PRINT"[CLR][2 DOWN} [WHTjYOU EXIT THE
EB
490
PRINT"ARE
HAVE CHOSEN TO PROGRAM." YOU
SURE
YOU
[SPACE}WANT TO DO THIS [SPACE)(Y/N)?":GOSUB171
KA 170 PRINT"fDOWN}"LEFTS(AS,2
)":"RIGHTS(AS,2l
PRINT#15,"N0:EXERCISE
ATA,01"
M1=VAL(MIDS(A$,3,1)):M2 =VAL(RIGHTS(A$,O)
180 PRINT"£DOWN}IS THIS OK
[SPACEJSTART FORMATTING .":GOSUB1710
3:POKEM,D3:NEXT F
RG
FORMAT
OKEV+3,138 FORM=49152T049357:READD
K(1}OR4:GOTO350
September 19B7
RX
DOWN)YOU
GETDS: IFD5<> "■»"THEN440
POKE53272,120:POKE1,PEE
COMPUTED Gazette
TO
440
XA 150 H1=VAL(LEFTS(AS,1) J :H2^= VAL(MIDS(A5,2,1))
POKE53 2 72,20:POKE1,PEEK
{2
QC DK
140
70JAND239 340
HF
130
PRINT"[CLR){WHT}
POKEV+39,4:POKEV+40,4 POKEV+16,3:POKEV+0,20tP OKEV+2,20:POKEV+1,138:P
A? ) >12 59ORLEN(AS)< 4THEN
FOKS53265,PEEK(53265)AN
370 380
NTO THE DISK DRIVE." PRINT"{DOWN)PRESS ■* TO
IFT$="H"THENPOKE53270,P
D22 3:POKE53 270,PEEK(53 2 HK
QC
120
GETDS:IFD5=""THEN350
430
POKE2040,13:POKE2041,14 :POKEV+29,3:POKEV+23,3:
EEK{53270)OR16
EEK(53270)AND239 320
FC
110
%G%
SG
58:READD2:POKES,D2:NEXT
XK
F7
FD
KES,DliNEXTjFORS-896T09
S"
0R2 IFTS="S"THEN330 POKE53265,PEEK(53 265)OR
MJ
AJ
92,0 100 FORS="832TO894:READDliP0
M3
GR
POKE54279,134:POKE54280,
110:POKE542 91,30:POKE542
OKE217,0
SPAC£S}E2
D=ASC(DS)-13 2:IFD<1ORD>
POKE54296,15:POKE54272,1
5,250 POKE54286,106:POKE54287,
§G|
4THEN350 ONDGOTO530,890,380, 480
33 IPOKE54284,IS:POKE5428
"THENREADFS,BR,BK:RETUR »
350
DIMX(201),NA$(201),TL$(2
77,0:POKE54278,240 CH
F5
360
32 :POKE54273,22 5:POKE542
REACTS:IFTSa"X"THENGETK
Mi
ISE PACER":GOSUB300:GOS UB1710
FORI=lTO332:READAtX=X+A: NEXT: IFXO42 309THENPRINT "DATA STATEMENT ERROR."]
CB
SPACESJE2
KETTE":GOSUB300 GOSUB290:PRINT"
[3
GETKEYAS GOSUB270
RESTORE
[3
|H3[4 SPACES}EXIT EXERC
170
HIC0,1;END
340
[SPACE)RESERVED":PRINT"
160
PB
GOSUB290;PRINT"
EH3{4 SPACESjFORMAT DIS
RR
60
GOSUB290:PRINT"
GRAM/EDIT/RUN":GOSUB300
HP
HF
50
GOSUB290:PRINT"
(3 SPACES}82 M? F3 EG3 |H3(4 SPACES(RECALL PRO
RESERV
INC."
PRINTTAB(10)"ALL
310
[DOWN}READING DATA..."
OR
PRINT"{3
(3 SPACES}§2 M3 Fl |G§ EH3[4 SPACESiENTER EXER CISES/SAVE":GOSUB300
COMPU
INC.
PRINTCHRS(142)CHRS(8)" [CLR){YEL]{DOWN} (3 SPACES]COPYRIGHT 1987 PUB.,
300
§4 T3M6H3":PRINTLN?T3):
POKE53280,11:POKE53281,0
COMPUTEl
PQ 40
(3 SPACES)
RETURN
(SPACE)ALL RIGHTS
(1}OR1:F?=FS+".CRAM":BL
PRINTLN$(2):PRINT" "iRETURN
FH
10
SPACES)
{12 SPACES)-"
XE
DRIVE
PRINT"§33-(12 E88EXERCISE
CHAR1,8,20,"THE
70
:BLOAD(F?)
270
CB
JQ
IFTS <>"H"THENPOKE1,PEEK (1}AND254:FS=F?+".CRAM"
PA
280
Exercise Pacer
BLOAD(FS):B=0
F
SCREEN"
GOSUB1000
SPACES}(YEL]
{4 spacesJ|6 t3"
XK
1020
LNS(2)="[4
CQ 260 PRINT"£CLR}g33§R3"LNS(l
CHAR1.10,18,"PRESS ANY KEY AFTER"
60
140
250
PA 1010
GRAPHIC1,1 :GRAPHIC0,1
150
TO310
RB
CHAR1,10,12,"LOADING
50
KM KD
FOUND":
DATA
FR KH
GETKEYAS GOSUB270 GOSUB210:IFT5="X"THEN19
S6329,0:POKE56328,0
POKE650,128iGOSUB240:GO
400
BE
POKE56331,(Hl*16)+H2:PO
KE56330,(M1*16)+M2:POKE
230
RIGHTS
[SPACE)RESERVED":SLEEP 3
IFDS="K"THEN140
KE
., INC." PRINTTAB(11}"ALL
CX
210
220
40
110 120 130
MQ
XE
HH
PH BJ
NDD?o"Y"THEN190
JF 200
14 GRAPHICS,1:IFDS=6 2THENP RINT'TILE "jCHR$(34); F? END
Article on page 64.
20
POKE54534,4:POKE216,0:P OKE217,0:POKE1,115:COLO
3S0
FS RK CQ 6D HO
For The 128 10
360
(SPACE) (Y/N)?1" FE 190 GETDSjIFDS=""ORD5<>"N"A
R0,12:COLOR1,14:C0L0R4, AO
MG
POKE54534,4+64*BiPOKE53
280,BR:POKE53 281,BK:RET
Before typing in programs, please refer to "How To Type In COMPUTE!'? GAZETTE Programs," elsewhere in this issue.
QF
350
0 QM
500
GETD$:IFDS=""ORD$<>"Y"A NDDS<>"N"THEN500
AP
OG
hc
510
520
D
530 nas="":print"[clr} {2 down)[wht}name of ex ercise
CS
NDDS<>"N"THEN860
IFDS="N"THEN220
CLOSE15:PRINT"[CLR)":EN
program!":inputn
as:ifnas=""then220
iflen(nas ) > 12then530
sc 870 hd
880
KR
890
PRINT"[CLR}[2 DOWN] tWHT}PLACE YOUR EXERCIS E
RE
900
PR
910
DATA DISKETTE"
PRINT"INTO
VE.[2
THE
DC
print" (clr]1' |nu=1
BQ
560
ifnu=200then660
XA
570
print" {down} [whtjevent {space}#"nu"name (enter
OK
920
NAS="":INPUTNAS:IFNAS="
t"iINPUTNAS(NU)
RP
930
IFLEN(NAS)>12THEN920
JC
940
PRINT"[CLR}[2 DOWN) fCYN}fRVS)...RECALLING |SPACE)FILE"
NU)="":X=NU-1tGOTO660
JH
950
0PEN1,8,5,"0 I"+NAS + ".ID X,S,R":INPUT*1,X:CLOSE 1
IMIT
FD
960
OPEN1,8,5,"0:"+NAS+",S,
OU
[rvs)end{off] to stop)
EB
580
IFLEN(NAS(NU))>35THEN57
590
BA
60S
RQ
610
ER
620
IFNA$(NU)="END"THENNAS( PRINT"lDOWN}[YELjTIME L FOR
EVENT
*"NU"(MM
MISTAKES
{Y/N)?"iGOSUB
1710
XH
630
SD
640
IFDS="Y"THEN570
KP
650
NU=NU+1:GOTO560
GC
660
F
OH
670
MS
680
690 700
GR
EVENTS:"X
PRINT"E2 DOWNjlNSERT YO PRINT"THE
INTO"
DRIVE.
{2 SPACES}PRESS * WHEN [SPACEjREADY.":GOSUB171 e
BP
710
GETDS : IFD$<> "VTHEN690
PRINT"{CLR}(2 DOWN) (CYNJERVS)...SAVING DAT
720
GX
980
1000
FR
1010
GK
1020
RB
1030
XH
JA
KC 800
810
1040
SX
1050
1060
PRINT#l:CLOSEliOPENl,8, SG
1070
GOSUB1660tIFE<>63THEN85 0
N
THE
DISK."
XH
1080
REPLACE
THE
OLD
FIL
GETDS;IFDS=H"ORDS<>"V'A NDDS<>"N"THEN780 IFDS="N"THEN820
FC
1090
DG
1100
QK
1110
SC
1120
FS
1130
DM 850
CP
860
PRINT"[CLR}(CYN){RVS)P "NASiPRINT"
PRINT"{DOWNJIWHT}EVENT NAME:":P RINT"{RVS}"NA
FILE"
PRINT#15,"S0:"+NAS:PRIN
DR
1140
TO
SEE
PRINT"PRESS NEXT
FIRST
<F3>
EVE
TO SE
EVENT"
PRINT"PRESS
<F5> TO SE
E PREVIOUS EVENT" PRINT"PRESS <F7> TO SE E LAST EVENT" PRINT"PRESS <A> TO ADD ADDITIONAL EVENTS" PRINT"PRESS <E» TO EDI T"
PRINTm(DOWN]E73PRESS < TO
RUN
PACER"
PRINT"PRESS
<M>
TO GO
[SPACEjBACK TO MAIN ME
SQ
1150
QX
1160
GETD?:IFDS=""THEN1150
IFDS="iFlj"THENNU=l:GO
TO1030 ED
1170
IFDS-" |F3] "ANDNUO400A
NDNU<XTHENNU=NU+1:GOTO
1030 CA
1180
IFD$-"[F5}"ANDNUO1THE
NNU-NU-1:GOTO1030 HK
1190
GOTO700
PRINT"(CLR]{2 DOWN)
espace)limit:":print" (RVS}"TL5(NU) PRINT"(DOWN]{CRN}PRESS
NU.1-iGOSUB1710
PUTNAS
IFLEN(NA$)>12THEN820
print"[doi«j][yel]time
R>
PRINT"[CLR]£2 DOWN} (CYNHRVS) ..-ERASING OL
PROGRAM: ■'[GOSUB1710! IN
840
GETDS:IFDS=""0RD5<>"R" ANDDS<>"E"THEN1000 IFDS="R"THEN1320 NU=1
E
PRINT'MDOWNJdO YOU WISH
OTO700
830
PRINT"(6 SPACESlfRVS) [YELjEfOFF]{WHT} TO EDI T/REVIEW PROGRAM.":GOSU
<F1> NT"
PG 920 PRINT"{CLR}{2 DOWN] fWHT)ENTER NEW NAME FOR
PD
:";TL5(NU) 1300
IFLEN{TLS(NU))>4THEN12
EA
1310
90 GOTO1030
QX 1320 FL=0:FG=0:PRINT"{CLR}"
RO 1330 PRINT"{HOME}[6 DOWN)
{5 SPACES]PRESS SPACE
JSPACEJBAR TO START PA CERI":D=200:G0SUB1760
1340 GETD?:IFD$=CHRS(32)THE N1370
PRINT"{HOME}(6 DOWN) {5 SPACES){RVS)PRESS S PACE BAR TO START PACE RI1':D=200:GOSUB1760
FG
1360
GOTO1330
DM
1370
GOSUB1740iPOKE650,0:DM
=FRE(0):SYS49152iFORNU =1TOX:CG=0
DB 1380 PRINT"[CLR){3 DOWN} {YEL5TIME OF DAYl " RK 1390 PRINT"{HOMEj[7 DOWN) [YEL]EXERCISEi":PRINT"
[DOWN}
NU)
{WHT3{RVS}"NA$(
SQ 1400 PRINT"{DOWN){YELjEVENT t:(WHT](RVS]"NU:PRINT "[yel]events to go: {wht}{rvs]"x-nu
CC 1420 PRINT"(DOWN)(YEL)TIME (SPACE}ELAPSED: [WHT}"
PF
T*15,"S0:"+NAS+".IDX":G
JK
pacer
INPUT"[DOWN}[YEL]ENTER NEW TIME LIMIT (MMSS)
NU
D SF
run
IFL,EN(NAS{NU) )>35THEN1
270
BO
PRINT"[CLR}(2 DOWN] fWHTiPRESS {RV to
U)
AS(NU):PRINT*1,TLS(NU):
770 PRINT"WITH THE NEW (Y/N
790
XR 1290
"X
MP
E"
780
12B0
KC 1350
[RVS)NUMBER OF EVENTS:
)?":GOSUB1710 HK
CJ
PRINT"(DOWN}[WHT]EVENT NUMBER:"iPRINT"[RVS}"
TO
GS
ENTER NEW NAME:";NAS(N
W"tFORNU=lTOXiPRINTfl,N
740 PRINT"(CLR]f2 DOWN) IWHTjA FILE WITH THE SA ME NAME AS{CYN) pl QD 750 PRINTNAS'MWHT} EXISTS O RD 760
GOTO1150
kk 1410 print"{down}(yeljtime [SPACEjLIMITi EWHT) (RVS}"MIDS(TLS(NU),1,2
RINTtl,X:PRINT*1:CLOSE1
730
1260
XD 1270 FG=1:INPUT"[DOWN][WHT)
SP
ROGRAMj
5,"0:"+NA$+".IDX,S,W":P EQ
KB
SE1 GOSUB1660:IFEO0THEN220
B1710 DS
IFDS="R"THEN1320 IFDS="M"THEN220
A?(NU),TLS(NU):NEXT:CLO
(offHwht}
990
1240 1250
S(NU)
A" OPEN1,8,5,"0i"+NAS+",S,
NEXT CB
970
DOWNj
UR DATA DISKETTE
EB
KR
CA
(RV5IEXERCISE PROGRAM:" NAS:PRINT"[RVS}NUMBER O
RECALL."iGOS
R":FORNU=1TOX:INPUT#1,N
GETDS:IFDS=""ORD$<>"Y"A NDDS<>"N"TIIEN630
PRINT"ECLR}{2
TO
Y
"THEN220
SS):":INPUTTLS(NU) IFLEN(TL?(NU )) > 4THEN600
PRINT"IDOWN}E 7 3[RVS}ANY
WANT
PROGRAM
UQ1710
0
DD
PRINT"WORKOUT
IFD5="M"ANDFG'=1THENFG-
RS JX
DISK DRI
SPACESjENTER THE"
540 550
AH
1230
0iGOTO660
IFDS="Y"THEN660 IFD?="N"THEN220
iPOKE56587,0:POKE56586 ,0iPOKE565B5,0:POKE565 84,0
XP
1430
1200
[WHT}DO YOU WISH TO REP EAT SAVE (Y/N)?"iGOSUBl
EE
1210
IFDS="E"THEN1270
710
RK
1220
IFDS-"R"ANDFG=1THENFL"
IFDS="A"THENNU=X+1:GOT
RINT" i63[RVS}"NAS{NU+
1) 1440 PRINTSPC(9)"lD0WN] ECYNlPRESS <SPACE> TO [SPACEjPAUSE'1 RS 1450 PRINTSPC(4)"PRESS <t> [SPACEjTO JUMP TO NEXT EVENT"
RJ
1460
PRINTSPC(2)"KEEP PRESS ING
<*>
TO
ABORT
EXERC
I SE"
RE
1470
GOSUB1510:GOSUB1570
XE
1480
ED
1490
GETDS:IFDS="+"THENGOSU B1550:GOTO220 IFCG=1THENNEXT:GOTO156 0
SD 1500 GOTO1470 KX 1510 ZF=0:FORZ=1TO4:IFPEEK( 1019+Z)-48<>VAL(MIDS(T LS(NU),Z,1))THENZF=1 KR 1520 NEXTiIFZFTHENRETURN EF SH
1530 1540
GOSUD1720:CG=1:RETURN GOTO1390
JQ
1550
POKE56333,127:POKE788, 49iP0KE789,234:POKE563 33,129:RETURN
DD 1560 GOSUB1550:PRINT"{CLR]
(5 D0WN]fl4 SPACESjYOU
O570
1:FG-0iGOTO660
PRINT"tYEL}UP NEXT:":P
FF
IFDS="EF7}"THENNU-XiG0 TO1030
JH
GETDS:IFDS=""ORDS<>"Y"A
)"i"MIDS(TLS{NU),3,2)
"RE DONEI":GOSUB1740:G
OTO220
QJ
1570
GETnS:IFDS=""TfiENRETUR N
COMPUTED Gazerta
September 1987
79
PH 1580 IFD§=CHRS(32)THEN1610 GG 1590 IFDS="T"THENCG=1:RETUR N
ie ,221,41,240, 32, 197,1 GR
BF SM
1600 1610
RETURN POKE198,0
GD
1620
POKE56587,0:POKE56586,
1910
1630
19
19
99
2B
09A1:09
98
00
01
90
00
02
20
09A9i00
08
20
00
00
00
00
00
09B1:00
00
00
00
00
00
00
00
09B9I00
00
00
00
00
00
48
00
09Cli00 09C9:00
00 00
00
00 00
00
00
00
00 00
00
00
00 00
09D1:00
00
00
00
00
E0
00
01
09D9:F0
00
01
F8
00
03
F8
00
09E1:03
F8
00
03
F0
00
01
F0
09E9i00
00
E0
00
00
00
00
00
09F1:00
00
00
00
00
00
00
00
09F9:00
00
00
00
00
00
00
00
0A01;0C
00
00
3C
00
00
38
00
4F
0A09100
3F
00
00
FC
00
00
FC
0A11:00
00
FF
40
00
FC
00
00
0A19:FF
40
00
28
00
00
3C
00
0A21:00
3C
00
00
3C
00
00
3C
0A29:00
00
3C
00
00
3C
00
00
CA31i3C
00
00
3C
30
00
3C
00
0A39:00
3E
00
00
38
00
00
00
0A41:30
00
00
3C
00
00
2C
00
0A49:00
FC
00
00
3F
00
00
3F
0A51I00
01
FF
00
00
3F
00
01
Dl ID 38 62 B5 9F 9E 89 DS A3
TURN
0A59:FF
rtjr
iota
00
28
00
CACA
HO
JC
flfH
J-Q
F0RR=lTO5:P0KE54283,33 :POKEV+21,1:D=600:GOSU B1760 POKEV+21,2:POKE54283,3 2:D=800:GOSUB1760:NEXT
0A61i00
3C
00
00
3C
00
00
3C
A2
0A69:00
00
3C
00
00
3C
00
00
F5
0A71:3C
00
00
3C
00
00
3C
00
DF
0A79:00
BC
00
00
2C
00
00
00
IE
0AB1130
00
00
FC
00
00
B8
00
0A89:00
EC
00
03
FF
00
03
FF
0A91:00
03
FF
00
03
FF
00
0A99iFF
00
03
FF
00
00
74
0AA1:00
AB
00
013
FC
00
00
(PEEK(10 20)-48)*16+PEE
POKE56S85,(PEEK(1022}-
POKE56584.0:RETURN INPUTtl5,E,ES:IFE=0THE
FH
1920
,32,197, 192 .141.219 .4
KK
PRINT'MCLR)[2
1930
C
TO
1
*
GD
RETURN
POKE54276,17iD=200:GOS UB1760:POKE54276, 16: RE
:POKEV+21,0:RETURN
FORR=1TO40:POKE54290,2 1: D=S0 :GOSUIil760 : POKE5 4290,20:D=S0:GOSUB1760 :NEXT
RETURN FORY=1TOD:NEXT:RETURK DATA255,255,255,255,25 5,255,255,255,255,224, 0,7,224,60,7,224
1780
DATA60,7,226,60,71,225
1790
126,7,224,24 DATA7,224,24,7,224,24,
,24,135,224,153,7,224,
7,224,24,7,224,60,7,22
SH
1830
XC
1640
1850
1860
1880
80
T10I
Im *m If f
DATA15,32,20 2,192,141,
1950
220,4,173,9,221,41,15, 32,202,192,141,255,3 DATA141,146,6,17 3,8,22
0>
41, 15, 32, 202 ,192, 141
i 2 22, 4,7b,4y,234,
BS
A i
—W 4.
1960
£4
DATA74,74,74,74,24, 105 , 48,96
BEB !
TYPII
:
.
Before typing in programs, please refer to 'How To Type In COMPUTE! s GAZETTE Programs," elsewhere in this issue.
Bee Zone See instructions in article 29 before typing in 00
00
9E
28
32
29 45
3A
42
45
45
00
00
00
00
06
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46
20
C8
0AA9:00
00
CC
00
00
CC
00
56
0AB1:CC
00
00
CC
00
00
CC
05
0AB9:00
CC
00
00
00
00
00
21
88
45
0AC1:30
00
00
FC
00
00
FC
00
A5
DB
0AC9:00
FC
00
03
FF
00
03
FF
B7 S3
0AD1:00
07
FF
40
0F
FF
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0F
FA
0AD9iFF
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FF
00
00
FC
00
0AE1100
AB
03 00
00
FC
00
00
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CC
00
00
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00
CC 00
0AF1:CC
00
00
CC
00
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00
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00
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00
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00
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40
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64
01
34
0B69:64
64
00
64
64
00
64
64
61 33 2F 09 E0 48 94
0809:37
0811:4F
4E
0819:00
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19
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23
20
0829:08
00 60 B5
35
20
F4
08
85
0831:A5
37
38
E5
35
85
37
0B39ilB 85 85 0049:36 A5 0851:1E A0 0859:C9 05
33
85
35
A5
38
rr>
8D
38
85
1C
85
34
85
12
IB
B5
ID A5
1C
85
D6
00
20
F4
08
85
1A
87
0821:FF
0841:36
50
90
03
34 10
DATA224,129,7,224,0,7,
0869:04
15
20
F4
08
Bl
255,255,255,255,255,25
D0
7F C9 IB 65
5,255,255,255
0971:1B 0879:85
DATA255,255,255,255,25
0881:03
ID
20
F4
08
65
1C
C4
4C
54
A9
EF
BD
28
F2
Cl
BD
IB
03
EE
02
AD
0F
0B
4C
E2
FC
A9
4C
25
15
F4
5,255,255,255,255,224,
08B9:8D
0,7,224,60,7,224
0891:F0
DATA60,7,224,60,7,224, 24,7,224,24,7,224,126,
0899:18
85 IE A9 8A 03 D4
08A1:F0
05
A9
00
8D
15
7,224,153
08A9:A9
14
03
A9
03B1:15
31 03
8D
DATA7,225,24,135,226,2
5B
60
IB
20
A9 40 C9 45 0B 8D C9 01 D0 78 EA 8D F4 08
08B9:65
LC
20
DA
08
4C
54
00
4F
08C1:00
00
00
00
00
00
00
00
Dl
7,224,36,7 DATA224,36,7,224,0,7,2 55,255,255,255,255,255 ,255,255,235 DATA169,167,141,7,3,16
DATA141,21,3,88,96,160
DATA0,169,1,153,142,21 3,11,220,41,16,32,197 DATA192,141,213,4,173, 58,14
DATA215,4,141,218,4,14
10,220,41,240,32,197 DATA192,141,216,4,173,
COMPUTEI's Gazorre
September 1987
VO
31 5A 00 D2 F4 36 85
08 33
0B01:15
va
5C D3 DB 68 12 SE 18 04 0C
BE 0F 03 SI 00 P6 CC 94 00 8A 00 92
o« page
29
1,221,4,141,144,6,173,
1900
f
80
1
DO
a _p
C9
2,141,214,4,169, 1890
_F f
1A
11,220,41,15,32,202,19
MD
I
21
8,200,192,5,208,248,17
EP
1 ir,
-*
A5
200,192,10,208,248,160
1870
Uf
08
,0,169,10,153,213,216,
KQ
c.
F0
9,237,141,40,3,120,169 ,23,141,20,3,169,192 KP
f
D3
4,71,224,24,7,224,126,
PD
l di
-* "■ ^
,14
0861:20
4,66,7
1820
f
/-
1940
DOWN]
CONTINUE.":GOS
DATA173. 9.221. 41, 240-3
2, 197 ,192.141. 254
QH
1710
CF
00
1C 93 9B 4E 63 17 Cl C3
AA
1700
1810
00
99
KC
GG
00
24
PP
1800
00
0999:99
0
SG
00
00
1690 GETD?:IFD?<>"C"THEN169
GH
00
08
UB1710
SG
00
98
SS
1750 1760 1770
00
00
§63"E,ES Cft 1680 PRINT"[2 DOWN]{WHTjPRE
JX SC SH
0981:00
00
NUMBER" , "ERROR'1 : PRINT"
1740
83
00
09
[CYNj(rVS)DISK STATUS: " I PRINT " [ DOWN ) fj 7 3 { RVS }
JQ
00
48
08 99
NRETURN
1730
00
00
00
EN1620
FF
00
00
90
1650 1660
1720
00
00
00
ME RQ
XA
00
00
01
1640 GETDS:IFD$(>CHR?(32)TH
SC
00
00 00
QP
1670
00
0979:00 0989:00
48)*16+PEEK(1023)-48
BH
DATA173, 10, 22£ ,41 ,15,3 2, 202 ,192,141, 217 ,4 .17 3, 10, 221 .41 ,15 . 32 ,202 DATA192, 141 ,253,3 .141. 143,6 .173.9 ,220,41, 240
0971100
0991:02
K(1021)-4a RJ
92 ,141,252, 3,141, 142,6
8F BE D7
7B EF 69
08C9:00
00
00
00
00
00
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nil
D9
64
64
01
64
65
56
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08 20
80
02
66
00
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0B71:00
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4C F4
AP 5
NEXT 60
IFC-32355THENPRINTiPRINT
"ERROR
NT"(DOWN)ERROR:"E;ESiEND PRINT"[CLR)[3 DOWN3LOAD"C HRS(34 JPROGSCHRS(34)",8"
84
D4
JH 4
E,ES CLOSE1:CLOSE15:IFETHENPRI
FORX=0TO254:READA:POKEX+
F0
11
FPROG?="QUIT"THEN9 OPEN15,8,15," 10 : "iOPENI,8 ,8,PROGS+",P,R"iINPUT#15,
CA
0D
3
EP
ESERVED"
A2
8D
R
FP 40 PRINT"U DOWN}WORKING."f
FF
1C71:0C
1CB1:D0
., INC. " PRINTTAB(9)"ALL
30
D4
CS
lCBlsFD A9
SE
IN
DATA":END
(BLU]SYS49152
EBU,13:POKEBU+1,13:POKEBC
[YEL)TO AC
TIVATE":PRINT"{DOWN) [PUR)(2
SPACES}
-
AK 6 PRINT"[4 DOWN3POKE"S1","A ":POKE'S2","B"(HOME]":POK
-
,2 IFC>1THENPOKES1,C-2:POKES 2,D:END
KG
7
XD
8
-
POKESl,C+253:POKES2,D-liE
JB
80
PRINT"(DOWN)[GRN)SYS4939
QJ
90
DATA173,14,220,41,254,14
-0TO9:PRINTJ t POKEBU+J,13 I
1,14,220,165,1
NEXT:POKEBC,101 PRINT"
GF
100
DATA41,251,133,1,169,20
MX
110
8,133,252,169,56 DATA133,254,160,0,132,2
GH
120
1
(REDjTO
SHUT
OFF"jEND
51,132,253,169,0
DATA14 5,25 3,177,251,41, 128,240,2,169,192
FB
130
DATA32,159,192,41,64,24 0,2,169,49,32
ND
JD
9 PRINT'MCLR}(2
DOWN)"iF0RJ
{HOME]":END
SpeedSort See instructions in article on page
66 before typing in.
DB
140
DATA159,192,41,32,240,2 ,169,12,32,159
C000:A9
02
20
FD
9D
DATA192.41,16,240,5,169
85
20
150
00
AE
SE
C008:79
00
8D
Bl
C2
A9
80
8D
5E
,3,32,159,192
C010:B2
C2
20
73
00
C9
24
F0
37
DATA16 5,254,24,105,4,13
C018:19
09
80
8D
B2
C2
20
73
A5
3,254,169,0,145
C020:00
D0
07
A9
FF
85
0D
4C
CD
DATA253,177,251,41,8,24
C028:BD AD
C9
3A
F0
7F
0,2,169,192,32
C030:D0
EC
20
E3
C0
20
C9 73
24 F5 00 05
DATA159,192,41,4,240,2,
C038:20
Fl
AE
20
8D
AD
20
9B
ID
169,48,32,159
C040:BC
A5
63
D0
6B
AS
2F
B5
DB
DATA192,41,2,240,2,169,
C048;FB A5
30
85
FC
A0
01
Bl
AD
12,32,159,192
Bl 02
C2 Bl
D0 FB
64 18
88 65
10 El FB DF
GC
160
CP
170
SQ
1B0
CX
190
DA
200
DATA41,1,240,5,169,3,32
C050:FB D9 C058:F6 A0
,159,192,165
C060:8D
B5
C2
CB
Bl
FB
65
FC
40
HA
210
DATA254,56,233,4,133,25
C068:8D
B6
C2
AD
B5
C2
38
E9
A4
4,165,253,24,105
C070:07
8D
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B6
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92
HB
220
C078100
8D
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03 A5
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C080:18
65
65
85
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65
42
C088:64
85
FC
CA
D0
F0 A5
FC
7C
C090:CD AF
C2
90
0B
D0
19
A5
B9 8B
DATA1,13 3,253,165,254,1 05,0,133,254,165
HH
230
DATA251,24,105,1,133,25 1,165,252,105,0
240
DATA133,252,201,212,240
C098:FB
CD
AE
C2
90
02
B0
10
C0A0:A5
FB
8D
B3
C2
A5
FC
8D
15
SX
250
,10,76,28,192,17 DATA253,145,253,177,251
C0A8:B4
C2
4C
06
Cl
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FD
AE
09
AB
01 C0 CE 18
SR
260
DATA133,1,173,14,220,9,
F8
CE
BF
D0
F8
CE
58
BP
270
DATA169.208,141,39,3,16
D0
F8
CE F0
F8 F8
CE
89
280
ID
D0 D0
ES
88
DB
D3
60
00
00
00
D6
XC
290
DATA0,61,23 2,224,8,208,
12
47
41
4D
45
48
45
52
92
00
90
9C
RH
300
246,96,141,238 DATA192,32,202,241,173,
EB
,96,165,1,9,4
1,141,14,220 9,192,141,39,3 DATA169,30,141,24,208,1 62,0,169,255,157
238,192,201,33,144 QB
310
DATA16,169,18,32,202,24 1,173,238,192,32
BEFORE TYPING . . .
JG
320
CM
330
DATA202,241,169,146,3 2, 202,241,96,0,169
C0B0:4C
45
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85
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Program Appender
A2 0158:10 F9
03 18
B5
19
95
0A CA
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0A
65
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AA
68
C160:A5
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DoublePrint
Article on page 68.
C16B:6A
90
06
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01
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02
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3A
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85
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Article on page 58.
BC
C178:16 C180:0E
85
18
A0
00
Bl
0A
85
D9
C18B:10
Before typing in programs, please refer to "How To Type In COMPUTED GAZETTE Programs," elsewhere in this issue.
BE
10
REM
COPYRIGHT
1987
TE1
PUBLICATIONS
£ SPACE)ALL RIGHTS
GR
INC.
-
DA
1
COMPUTEl
PUB
DATA21,141,24,208,96
REM COPYRIGHT 1987 COMPUT El PUBLICATIONS, INC. - A LL
RIGHTS
RESERVED
BU=631:BC=198iSl=43:S2=44
:A=>PEEK(S1):B=PEEK(S2):C=
RESERV
SB 20 PRINT"{CLR) {2 SPACES}COP 1997
0
COHPU
ED YRIGHT
340
DATA241.141,39,3,169,20 2,141,38,3,169
KX 2
PEEK(45):D=*PEEK{46} INPUT"(CLR}[DOWNiPROGRAM
(SPACE)TO APPEND";PROGSiI
C150:D0
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COMPUTEIs Gazelle
September 1987
83
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refer to "How To Type In COMPUTER GAZETTE Programs," elsewhere in this issue.
BE
10
REM
COPYRIGHT
TEI
PUBLICATIONS
20
IGHT
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20 CB 5B
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SLEEP
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1,10,8,"ICYNJYOU
GE THE
COLOR OF
niCHARACTERS
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M
i6:jSOME
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LE
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EEP ltGOSUB 710:POKE 25 3,131:POKE 254,139:GOSU B 750:GOSUB 730
200
SLEEP 1:CHAR 1,10,12," ICYNJ>663 MAKE SOME OF EP
1:GOSUB
,133:POKE
BLINK.":SLE
710:POKE
253
254,149:GOSUB
750:GOSUB
KH
730:SLEEP
1
290 CHAR 1,38,12,"Se^AND ST OP
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RIGH
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1,10,6,"TH
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-
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IN
E 8563 CHIP SO11
■ SLEEP
AM
300 CHAR
1
1,10,14,"ICYNj>
(YELjIMPORTANT{BLK] (YELlTHINGS."iGOSUB 710
RH
CHAR 1,0,0,"":FOR M=l TO 168 t PRINT "IBLKjMAGIC IM
60
70
POKE
B0
NCLR FOR M=l
90 100
2829,8:GOSUB
TO
710:SC
168:PRINT
POKE
2829,16:GOSUB
LEEP
1
POKE
253,3:POKE
BQ
340
EEP 1 CHAR 1,10,20,"ICYN}> E7 3OR DUMP THEM TO YOUR
XP
350
SLEEP 2:GOSUB 810:GOSUB
HA
360
CHAR 1,12,11,"tPUR]'MOU
SZ=17:GOSUB
140
FOR W=0 TO 9:X=W*6:Y=W* 2;GOSUB 690:READ YS:CHA R 1,X+13-(LEN(Y5)/2),Y+ 3,"IYEL)"+YS:AD=AD+16:G
254,14
680
790:SZ=3
6jGOSUB 680:X=16:Y=7:GO SUB 690:CHAR l,X+7,Y+3, "633...THEN MAKE THEM A LL GO AWAY1":SLEEP 2 FOR 1=1 TO lliAD=AD-16: GOSUB 810:GOSUB 730:NEX 5,4:SZ=.1:FOR
AD=24tGOSUB
790
U
YOU
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15
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2:CHAR
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COLOR
COLU YOUR
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R
l,X,Y,"lYEL]TlliTlS="a
EEK=JOY(1)
400
90 IF
TI>150
EN
650
IF
TI>300
EN
660
410
THEN
3
AND
TK160
TH
AND
TK310
TH
IF PEEK!213)=1 THEN IF EEK=126 AND X>65 Y=3 THEN 530
640 AND
HH
440
IF
EEK=0
THEN
XA
450
IF
EEK-1
AND
Y>3
FP
500
AND
Y<21
THEN
X<75
THEN
THEN
Y
460
STASH
T
IF
EEK=5
1 SPACE]Y=Y+1 GG
470
IF
EEK=3
AND
lSPACEjX=X+l FR
AND
IN
-Y-l
SCREENS"
220
80
NOW WITHIN
GET J$:IF J?<>""
210 CHAR 1,10,3,"IWHTjAS YO ATE
ARE
380
420 430
200
GRAPHICS
390
FC AF
PJ
S£" MNS
AK
,3,3,CC5(3):SZ=SZ+36:NE
190
730
EC
1=1
FOR J-3 TO 21:CHAR 1,3, J,CC5(2)iCHAR 1,3,J+1,C
1
00000"
GC
KS
CC
370
(SPACEjTO 3:GOSUB 680:C HAR 1,3,2,CCS(1):CHAR 1
CS{3)t NEXT PRINT CHRSU4)
DR
DA
DX
COLOR
XT
KD 1B0
PRINTER.":SLEEP
790:NEXT
T 170
710:POKE
79
130
GS
1:GOSUB
ISPACEJ253,32:POKE 254, 42iGOSUB 770:GOSUB 730 CHAR 1,54,16,"THEN CHAN GE BACK."iSLEEP 1:GOSUB 710:POKE 253,42:POKE 2 54,32:GOSUB 7701GOSUB 7 30:SLEEP 1 CHAR 1,10,18," ICYNJ> SA VE SCREENS TO DISK.":SL
CO
160
CH
330
DD
EF
THE
ONE TYPE."l
SQ
710:5
120
AD=AD+16:GOSUB
ALL OF
OF
320
730
253,13:POKE
1
1,10,16,"ICYN}>
&3J1CHANGE
254,10:
750:GOSUB
CHAR
GF
QG
150
310
SLEEP
:GOSUB 750:GOSUB 730 GOSUB 830:AD=B:GOSUB 0
EM
iSLEEP
CA
"
POKE
OSUB
:POKE 253,141:POKE 254, 173jGOSUB 750:GOSUB 730
ARACTERS
110
0D
FC
September 19B7
INC.
THROU
RAM
IYELJUNDERLINE[BLKJ
30
C7
0C
"FREE1
PRINT CHRS(27)+"M" CHAR 1,32,1,"|PUR[STAND [SPACEjBY FOR..."
RC
A2
0B08:5B
1987
GOSUB
18
0C
THE
ALL
FAST:BLOAD"MAGIC
KB
A9
39
THEM
SP 40 GP 50
PD
Program
BACK
R
COHPU
1YELJ[2 SPACES)* 13 SPACESJE73(2 SPACES}* 13 SPACES]";:NEXT:GOSUB 15PACEJ730
Program 1: 80-Column Magic ML
1,10,5,"BR
ING
AT
PHINT"lCLR|"TAB(5)"COPYR CATIONS,
SO
See instructions in article on page 76 before typing in.
240
ED
DG
0B00:20
1987
(SPACE)ALL RIGHTS SM
SLEEP 2:CHAR
iSPACEjTHEM
AGIC1";:NEXT
80-Column Magic For The 128
DC
Demo
CB
Before typing in programs, please
230
GH
EC
Program 2: 80-Column Magic
TS
BEFORE TYPING . . .
00
BS
480
IF
EEK=7
=X-1 PA
490
GOSUB
730
AND
X>4
THEN X
ME
500 CHAR 1,X,Y,"IYELJT"
CF
510
AO
520
REM
HR
530
MU=1
GOTO
AFTER
254
380
*
MENU
GENERATOR
*
PK
750
SYS
2890, 24, 32
CP
760
REM
*
,57,2,CCSU):CHAR 2,MENUS:FOR AR
J=3
1
1,6B,
TO
9iCH
l,57,J,CCS(2)iCHAR
1
,57,J+1,CC$(3):NEXT
KR 550 COLOR
5,16:PRINT CHRStl
4):FOR 1=1 TO 3:CHAR 1, 61,(I*2)+2,MUS(I),1:NEX
T:COLOR5,4:CHAR MUS(l),liSLEEP
1,61,4, 1
CX XO
560 EEK=JOY(1) 570 GET J$:IF JSo""
EE
580
THEN
5
70 IF EEK»5 AND MU<3 THEN {SPACE}MU=MU+1:COLOR 5, 4:CHAR 1,61,(MU*2)+2,MU 5(MU),1:COLOR 5,16:CHAR
1,61,((MU-1)*2)+2,MUS( AR
590
MO -1), 1 IF EEK=1 AND MU>1 THEN lSPACEjMU=MU-l:COLOR 5, 4:CHAR 1,61,{MU*2)+2,MU 5(MU).liCOLOR
5,16iCHAR
254 DE
770
OM
780
FC JA
790 800
IF N
EEK=128
AND
MU=1
253
TO
POKEING
8
2890, 16, 24
REM
*
SWAP TO
RETURN
BANK
1
RA
* 2970. 0.AD:RETURN
SYS
FETCH
REM
PAM
FROM
BANK
1
* 3062,16,AD:RETURN
810
SYS
FM
820
REM
OR
830
JC
840
• STRING ARRAYS * BXS (l)=NOi74 Y^P" BXS (2) = "|tG3!74 SPACES]
AM
850
BX5(3) -"LE74
MA
860
MENUS= NU
P'
IR1 'S]
YNJ
ME
lott Ji
REPEAT
DEMO
PK
870
MUS(l)-"
EG
880
MUS(2)=" CLOSE 12 SPACES]MENU " MUS (3) ="t4 SPACESjQUIT
QC
HX CF
890
ISHIFT-SPACE)(4 "
900
RETURN
910
DATA
MU+1),1 600
RETURN
QJ
1,61,((MU+1)*2)+2,MUS(
JM
&
*
SYS
M
253
TO
CHARACTERS
SWITCH
AFTER
MP 540 PRINT CHRS(142);"tCYNl" :SZ=19:GOSUB 680:CHAR
POKEING
•
SPACES!
" LEARt> 1OW V'YOU CAN ", ' CREATE", 'MULT1 i " 1 PLE WINDOWS" "IN THE" , "80-COLUMN'
THE
12
SCNCLR:RESTORE:PRINT
SPACES]MODE
ISPACEJCHRSI142):GOTO 5 0
EX
OB
610
620
IF N
GOSUB
O
3B0
IF N
HR
630
JP
640
EEK-12B
AND
MU=2
720:SLEEP
EEK-128
AND
THE
1:GOT
MU-3
THE
640
GOTO
560
SCNCLR:PRINT
CHR?(142);
CHR?(27)+"L";"ICYNjEND
ISPACEjOF
RK
650
RUN...
'MAGIC
1 ML-ROUTINE INSTALLED. •'! END GOSUB 730tCHAR 1,10,13, "icynjthis pointer may
IspaceTbe moved using a mouse
or
joystick
in
p
ORT l.":CHAR 1,36,14,"( TRY O
AC
660
ITI)":GOSUB
380
GOSUB 730:CHAR 1,5,3," S63PULL DOWN MENUS AND
HG
690
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08
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00
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23
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48
08C9:46
53
0B69:01 0B71:68
00
00
85
86
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84
CD
CC
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00
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19
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93
20
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20
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00
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90
03
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01
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77
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85
2E
20
59
FB
1,5,6,"BENEATH
IT A
ND 'CLICKING". S IRVSJ RETURN
[OR PRES lOFFi TO
EXIT. T'iGOSUB
710:GOTO
3:CC?(S)=LEF
T$(BXS(S),SZ)+RIGHT$(BX S(S),1):NEXT:RETURN
COLOR 5,14:CHAR 1,X+4,Y ,CCS(1)jFOR B=l TO 5:CH AR l,X+4,Y+B,CC5(2)iNEX
T:CHAR 1,X+4,Y+B,CCS(3) :RETURN
JX
700
REM * SAVE SCREEN TO "F REE" RAM12 SPACES}*
PA
710
SYS
SE
720
REM
BB
730
SYS
2816,16,0:RETURN
KA
740
REM
•
2816,0,16:RETURN
SWITCH
0979:00 AD
20
02
6D
RESTORE
8D
31
IB
*
00
D0
08
SPACESJ*
0E
32
0889:0D
(2
AD
FB
->":PRINT CHR?(142)iCHA R 1,68,2,MENU?:PRINT CH
TO
00
9E
16 08
FOR S=l
EF
0971:02
E6
20
380
680
A2
86
00
15
HAR
15
8D
CC
F6
PLACING THE
BD
00
00
F0
CAN
00
0C
00
F0
1,5,5,"S63YOU
2B
AD
00
FF
CHAR
AD
00
08
08
MAY
THIS
00
58
0809:32
0881:C9
LIKE
03
0969:03
0801:0B
0879:0D
SCREENS
CREATED
tSPACElOPEN THE MENU
DF
on pagi
-
BE
670
See instructions in article 70 before typing i
08 C9
tSPACE)HELP
XK
710:GOT
DOS Plus
0961!14
SCREEN
ATTRIBUTES
08F1:00
EF
29
02
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01
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26 39 30
COMPUTED Gazette
14
03
IB
10
September '987
35
0C09iBC 0C11:26 0C19:14
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BEFORE TYPING . . .
Before typing in programs, please refer to "How To Type In COMPUTED GAZETTE Programs,"
C120:07
03
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15
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01
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September 19S7
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PRINTTAB(10)"ALL RIGHTS
[SPACE}RESERVED"
PS 40
FORI=0TO121:READA:CK=CK+
FH 50
A:P0KE4864+I,A:NEXT IFCK<>16620THENPRINT"ERR OR
IN
DATA
STATEMENTS":S
TOP
60
BSAVE"SCREENDUMP.ML/',P48 64TOP4986
,0,192,0
240,5,56,42,136,208
,251,141
BF 90
DATA
122,19,160,3,169,25
0,162,1
CS
100
DATA
136,32,116,255,153
,252,0,192
MM CX
110
DATA
120
136,136,136 DATA 136,132,252,164,25
0,208,241,164,252,
2, 169,253,162
KD 130
DATA 1,136,32,116,255,1 53,124,19
RD
140
DATA
192,0,208,241,164,
252,136,185
AG
150
AH
160
DATA 124,19,208,6,192,0 ,208,246 DATA 240,45,200,132,252
MF
170
,136,185,124 DATA 19,13,122,19,77,12
JH
180
DATA 24,105,128,153,124 ,19,192,0
XJ
190
DATA 208,235,164,252,16 9,253,141,185
GK
200
DATA
2,19,74
2,136,185,124,19,1
62,1,32
MD 210
DATA
119,255,192,0,238,
BC
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COPYRIGHT
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20
41
42
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52
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32
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20
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20
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44
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54
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2D
{SPACElALL
C930:02
60
93
11
11
54
41
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0D
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20
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52
20
44
49
53
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20
28
54
2F
44
29
20
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93
11
11
4C
4F
41
44
5A
7A
COMPUTE'S Gazette
4E
4D
September 1987
238,96,132
BR
220
DATA
252,96
Program 2: 128 Screen Dump BE
10
20
PRINT"ICLRJ|3 YRIGHT
XG
30
1987
refer to "How To Type In COMPUTE!'* GAZETTE Programs," elsewhere in this issue.
-
SPACESlCOP
COMPUTEl
., INC." PRINTTAB(10)"ALL
PUB
RIGHTS
[SPACE J RESERVED":SLEEP3 QD SP
40 50
GRAPHIC1,0iGRAPHIC0,1 COLOR0,4:COLOR4,4tCOLOR5
,1
113
Before typing in programs, please
COMPU
INC.
ED
DE
HJ 60 PRINT"fl0 BEFORE TYPING . . .
1987
DOWNj
SPACES]128 SCREEN
QD
70
MP" BLOAD"SCREENDUMP.ML"
KS
80
PRINT"16 SCREEN
JJ
90
GE
100
D0WN]{5
WILL
DU
SPACES}
BLANK
DURING
PRINTING" INPUT"{2 DOWNjf5 SPACES} PICTURE NAME";PSiIFPS-"" THEN 140
PKINT"lDOWN)15
NSERT
PICTURE
SPACESjI
DISK"
Screen Dump Set
FA
110
For The 128
PRINTT1t5 SPACESjTHEN PR ESS ANY KEY"
CG
120
GETKEYZS
XX
130
BLOAD(PS)
JF
140
FAST
KS QA
170 180
FORI=-45TO0STEP-1 SSHAPEAS,7*1,0,7*1+6,19
JE
190
SYS4864,A,X
GC
200
IFFEEK(252) = 0TIIENAS = "": ELSEAS=LEFTS(AS,PEEK(25
MF
210
Article on page 74.
UK QR
Program 1: ML DATA BE
10
REM COPYRIGHT TEl
DE
20
COMPU
PUBLICATIONS INC.
RIGHTS
PRINT"{CLR]t3 YRIGHT .,
1967
1997
INC."
150 OPEN4,4:PRINT#4,CHRS(8) 160 A5='"':P=P0INTER(AS):X=I NT(p/256)iA=P-25G*X
-
RESERV
9
SPACESjCOP
COMPUTEl
PUB
2))
PRIHT#4,AS
HG 110
HS
2 20
NEXT
PF
230
PRINT#4,CHRS(15)
BP
240
CL0SE4
AC
250
SLOW
Program 3: 128 Dual Dump BE
10
REM
COPYRIGHT
TEI
PUBLICATIONS
1987
{SPACEjALL RIGHTS
-,
RESERV
ED
DE
20
PRINT"ICLR]13 YRIGHT
XG
1987
SPACESJCOP
COMPUTE I
120 130
PRINT"16 SPACESJN B M"
KQ
140
PRINT"tDOWNj15 SPACESlU
QR
150
RS
160
40 GRAPHIC1,1iGRAPHIC0 SB COLOR0,4iCOLOR4,4iCOLOR5 ,1
KJ QD
FG
60 PRINT"{CLR]110 DOWN) 15 SPACESjDUAI, DUMP" 70 BLOAD"SCREENDUMP.ML"
MS 80 PRINT"{2 DOWNH5 SCREEN
WILL
SX 90 PRINT"[DOWNi[5 SERT
SPACES}
BLANK
PRINTING"
PICTURE
DURING
DISK"
ESS AMY KEY"
GH
110
GETKEYZS
AX
130
A?="":P=POINTER{A?):X=I
XG GD
140 150
NT(P/256):A=P-256*X DIMB5(45,l),CS(l)iPRINT F0RI=lTO2iPRINT" 15 SPACES]PICTURE #",■!;
DX 120 OPEN4,4:PRINT#4,CHR5(S)
:INPUTCS(I-DINEXT
CR 160 INPUT"lDOWNj(5
SPACESjT
OR SPACED
(T/S)
■;S5rS-200iIFSS""S"THEN S=240 170
EE
180 FORI=0TOliBLOAD(CS(U)
GQ
190
FORJ=45TO0STEP-1
FR
200
SSHAPEAS,7*J,0,7*J+6,19
RB
210
9 SYS4864,A,X
IFPEEK(252)=0THENAS-""=
ELSEA?=LEFTS(AS,PEEK(25
2))
KR
230
JS HB
240 250
NEXT!NEXT FORI=45TO0STEP-1
PM
260
IFBS(I,0)"-nllANDB5(I,l) =
BS(J,I)=AS
)
CC HJ
270 280
NEXT PRINT#4,CHRS(15)
FX
290
CLOSE4
PF
300
SLOW
Program 4: 128 Window Dump REM
COPYRIGHT
TEI
PUBLICATIONS
1967
[SPACEjALL RIGHTS 20
PRINT"lCLRj13 YRIGHT 1987 ., IMC."
XG
30
COR
PRINT"!5 SPACESJTHEN PR ESS [ENTER] TO SET" PRINT"!DOWN}15 WILL
SPACESJS
BLANK
-
RESERV
SPACESjCOP
COMPUTE 1
PUB
IN
DATA
STATEMENTS":
DURING
INPUT"IDOWNJ15 SPACESjP ICTURE NAME";PS:IFP5=""
PX
650
RETURN
EF
660
AE BO AP
670
DATA DATA
0,0,0,0,0,0,0,0 0,0,0,0,0,0,0,0
DATA DATA ,32 DATA DATA
0,0,0,128,0,0,64,0 0,32,0,255,240,0,0
690
XH RP
700
KM
720 730
FK
710
0,0,64,0,0,128,0,0 0,0,0,0,0,0,0,0
DATA
0,0,0,0,0,0,0,0
DATA
0,0,0,0,0,0,0,0
BJ '740 RJ 7 50
DATA
0,0,0,0,0,0,0,0
THEN220
DATA
0,0,0,0,0,0,0,0
PRIKT"lDOWNJ15 SPACESjl
EA
760
DATA
0,0,0,2,0,0,4,0
FQ
770
DATA
0,B,0,0,31,255,0,8
EA RR
780
DATA
0,0,4,0,0,2,0,0
790
DATA
0,0,0,0,0,0,0,0
MR
800
DATA
0,0,0,0,0,0,0,0
610
DATA
0,0,0,0,0,0,0,0
PR
200
GETKEYZS
210
BLOAD(PS)
GQ
FF
220
GH
230
AS="";P=POINTER(AS):X=I
Program 5: 128 Sprite Dump
OPEN4,4:PRINT#4,CHRS{8)
NT{P/256)iA=P-X*256jXX= 1
SD CH OB
240
GRAPHIC2,0,23
250
XP»0iYP»31
260
SPRITE 1,1,XX:SPRITE2,1,
BE
10
REM
COPYRIGHT
TEI
PUBLICATIONS
{SPACEjALL
XX
1987
COMPU
INC.
RIGHTS
ED
DE 20 PRINT"[CLRj13 SPACESjCOP YRIGHT
1987
COMPUTEI
270
FS
280
MOVSPR1,100,100:MOVSPR2
JM
290
PRINT"{6
RR
300
SP=1SjGOSUB490iX1-XPiY1=
310
YP-31 PRINT:PRINT"SELECT
RM 60
PRINT"[10
320
R RIGHT CORNER" SP»2 :MOVSPR2, XI-f-12 , Yl+4
QD
70
BLOAD"SCREENDUMP.ML"
KS
80
,100,100
PP PD
DOWNjSELECT
UP
PER LEFT CORNER"
LOWE
HA
33G
31 FAST
PH
340
X3-X2-X1
FP EG
350
X4-INT(X3/7) X5»X3-X4*7
OF JE
370
360
380 HO 390 AC 400
Y=7-X5 IFY=0THENX4=X4-1 FORI=X4TO0STEP-1
SSHAPEAS,I*7+X1.Y1,1*7+
HJ
420
PD 430
.,
XG
PUB
INC."
30
PRINTTAB(10)"ALL
QD
40
[SPACEjRESERVED"[SLEEP3 GRAPHIC1,0:GRAPH1C0,1
SP
50
COLOR0,4tCOLOH4,<l:COLOR5
,1
15
RIGHTS
DOWNJ
SPACESjSPRITE
PRINT"16 SCREEN
DUMP"
DOWNJ15
WILL
SPACESj
BLANK
DURING
PRINTING"
RQ
90
IKPUT"12
DOWNJ15
SPRITE FILE S=""THEN140
GE FA
SPACESj
NAME":PS:IFP
100
PRINT"{DOWN)I 5
110
NSERT PICTURE DISK" PRINT"{5 SPACESJTHEN
ESS
SPACESjl PR
ANY KEY"
CG
120
SYS4864,A,X,Y
XX
130
BLOAD(PS)
Y=0
JF HK
140 150
FAST OPEN4,4:PRINTt4,CIIR$(e)
ELSEAS-LEFTS(AS,PEEK(25
FF 160 FORI=lTOa:SPRSAVI,AJ:GS
PRINT#4,AS
AQ
170
AS="":P=POINTER(AS):X=I NT(P/256)iA=P-256*X
PRINT#4,CHR5(15)
JF
180
FORI=45TO42STEP-1
SLOW
JD
190
IFPEEK(252)=0THENAS=""t
2))
PC 440 ER 450 EH 460 BA 470
-
RESERV
QG
GETKEYZS
HAPEAS.296,1*22:NEXT
NEXT
SSHAPEAS,7*1,0,7*1+6,19 9
BE
480
SP
490
DO
CS
200
SYS4864,A,X
AF
500
GETPSiIFP$=""THENXX=3-X
CB
210
IFPEEK(252)="0THENAS=""t ELSEAS-LEFTS(AS,PEEK(25
SE
220
DX
230
NEXT
END
XiSPRITEl,1,XX:SPRITE2, 1,XXiGOTO500
COMPU
INC.
ED
DE
LOCATE
6+Xl,Y2
14,BS(I,0)CURS(27)CHR?( 16)CHRS{0)CURS IS)BS(1,1
OR
XM KC
RR 410
""THENPRINT#4iELSEPRINT
10
TO
SPACESJ3"
NSERT PICTURE DISK" 190 PRINT"{5 SPACESJTHEN ESS ANY KEY"
FAST
SA 220
SPACES)2{2
1:GOSUB490:X2=XP:Y2-YP-
QH
BE
160
SPACESjlN
KA 100 PRINT"15 SPACESJTHEN PR
OUCHING
HH
IFCKO1257THENPRINT"ERR
640
STOP
PRINTING"
170
[SPACEjRESERVED"ISLEEP3 HG SP
12
CREEN
KP
JO
PRINT"i5 SPACEStl
SE KEYPAD NER"
PUB
., INC." PRINTTAB(10)"ALL RIGHTS
30
EB BA
COMPU
INC.
+A:POKE3584+I,A:NEXT
PRINT"t5 SPACES)4 C C 6
CR
510
BR
520 530
HS
FX 540
P-VAL(PS) IFP=0THENEXIT
2))
PRINT#4,AS
IFP>6THENYS=YS-1;ELSEIF
HF
240
PRINT#4,CHRS(15)
P<4THENYS=YS+1
FQ
250
CLOSE4
IFP/3-INT(P/3)THENXS=XS
QD
260
SLOW
+1
PRINTTAB(10)"ALL RIGHTS {SPACEi RESERVED"ISLEEP3
QM
OR
560
XS>319THENXS=319
Sec instructions in article on page
QM
570
IFYS <YPTHENYS=YP:ELSEIF
EB 60
,1 PRINT"lCLRj12 DOWN) 15 SPACESlWINDOW DUMP"
30 before typing in.
AJ
580
YS>230THENYS=230 MOVSPRSP,XS+12,YS+10
QD
70
BLOAD"SCREENDUMP.ML"
AS
590
LOOP
CP
80
GOSUB630
MK
600
XP-XSiYP»YS
PB
90
PRINT"12
PQ
610
RETURN
JH
100
PG
40
GRAPHIC1,0iGRAPHIC0
SP
50
COLOR0,4iCOLOR4,4:COLOR5
7(2
DOWN)|5
SPACESj8i2
PRINT"(6
SPACES!
SPACESJ9"
SPACESjM B N"
550
P=P+2iIFP/3-INT(P/3)THE NXS-XS-1 IFXS<XPTHENXS=XPiELSEIF
HH
620
I
DX
630
FORI=0TO127:READA:CK=CK
Sub Attack C000:A2
00
BE A0 0F 8E Al
C008:8E
A2
0F
C010:D4 C018:88
8E 07 D4 13 AD 15
C020:78 C028:BD
A9 15
2F 03
8E
0F
B3
0F
8E
BE
C8
AD 14 03 8D
03 89
8D IF 13 IE
A9 C0
C0 AD
A3
BD 14 5B AC
COMPUTEIs Gazotto
03 SE
C7 A6
September 1987
B9
C030:8A 13 C9 3C CB38:13 6C 88 13 C040:13 AD 0A as C048iA9 00 BD 0A C050:6C 88 13 F8 C058:0A 08 DB 6C C060i8A 9D 00 08
F0
06
EE
A9
00
8D
8A 8A
C9
59
D0
0B
93 D8
08
EE
0B
08
0B
C0
C2D8:D0
03 4C C2E0:AD 01 D0 C2E8;29 01 C9 C2F0:C3 AD 03
2B
C3
AE
IF
D0
AB
CSB0:14
D4
A9
0F
8D
0F
D4
A9
C9
56
90
6E
0A
8A
C7
8D
12
D4
FE
16
08
BD
01
D0
03
4C
0B
C2
E5
50
A9
01
56
C9
05
C9
08
D0
D0
C588:81 C590:16
56
90
IF
19
C598:99
14
08
60
FE
19
08
BD
27
02
D0
IB
A9
IB
C5A0:19
08
C9
14
D0
03
4C
BB
1C
C5A8iC6
BD
1C
08
C9
01
D0
01
PE
C0
02
9B
C2F8:BA 29 C300:C2 SD
C9
F9
07
A9
01
A3
00
18
69
01
8D
12
88
13
A2
00
EB
E0
64
D0
73
C308:4C
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A9
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8D
F8
07
F0
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07
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E8
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19
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C310iA9
01
02
4C
CA
CA
4C
90
C5B0160 C5B8;0F
01
00 D4
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12
4C
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A9
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A9
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08
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1)1)
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92
C328.4C C3301A9
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D2
FF
20
64
94
C338:02
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CA
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47
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08
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31
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C340:07
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40
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03
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08
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F6
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01
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24
08
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03
20
B8
C6
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D0
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01
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1C
08
60
57
08 DO
CD
25
5F
29
04
65
C068:FB
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9D
C070ID0
F8
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C07B:D0
8D
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C0B0;01
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93
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C358:03
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66
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10
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ADVANCED DETECTION & CONTROL
;
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Excellent party game!
>!■**> if Ttvnt And
chti r#nOo"H
ou a Ninl 0' 1 "o* you o*T al
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"■<m
To oiatt und *■*
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it vou
f. TO nw* ti*| Irrvta fun*
■ cnanct But HaH al HvcarH 1 But (Son c 0«<
■1 jfliJ contlfi
Mo yotj flrf [Ml iojibi Ajid jdu rflBy Nv-Cco'ideni bftl^H Bnc^riflf mvll
l* b pity TY TRIVIA TUNES.
Donavan Scientific Software
32 separate buflered digital output lines. 32 separate digital input lines.
MQumalr
CahTomra
AT~IN
ik
U rjqr D
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CMova Inv ■■ Iyr»l" com
8 Channel A/D Plug-in Conversion Module S45
S129
Fast i bit 0-5V A/D converter.
Course
Security System Module
Complete Ii nrhiHf^ ■ 'i_ iiiu 1.3
I/O
RH □ n 1i (ID Uv,
Module, Course User Manual.
Da/ilnnc'r
Manual and
$159
Beginner' sl/C Interface Course Manua $15 all
Jbout
H mm
II" (iftffMftSB TV tNNt
Card instructions. 8 diagrams
P.O
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"Bock Tfmi T
level
□I typical hookups
for
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device.
sample programs
Tii^* tun. 0 >k C»*lor" CiMti ma tdi your own li»it tuna ditu Tor uu witn any d Donjvan SctfffEltU 3o"wiriLilhna TLina pf(Hjr*mt (II
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and
Connect to temperature, light anc
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Educational Series
ables affecting the polls include in cumbency, economic factors, and
dents in grades four and above
can change any of these factors to see how each affects the outcome, President Elect—1988 Edition is designed for up to three players (grade 5 through college-level). Play may last from one-half hour
states, locating states on maps, learn
up to six hours.
Gamco Industries, Box 1911, Big Spring, TX 79721
Merit Audio Visual has released a series of disks intended to help stu
learn basic math problem-solving skills. Word Problem Tutor is de signed to teach the student how to solve word problems and estimate answers. The student must select
the correct operations in order to solve the problem. There are four levels of difficulty for the students and a class record manager for the
teacher. The eleven disks in the series
are: addition and subtraction; mul tiplication and division; multiplica tion, division, and multi-operations; multi-operations: whole numbers; mixed practice: whole numbers;
fractions; decimals; fractions and decimals; percents; mixed practice: fractions, decimals, and percents; and a teacher's key for all the data disks.
The retail price for each disk is
$49.95. All eleven disks can be pur chased for $449.95.
Merit Audio Visual, 157 Cham bers St., New York, 10007 Circle Reader Service Number 200.
the nation's confidence index. You
The package includes a disk, rulebook, campaign strategy sheet, and an election map. Retail price is $24.95. Strategic Simulations, 1046 N. Rengstorff Ave., Mountain View, CA 94043 Circle Reader Service Number 201.
Educational Software Four new educational programs from Gamco reward students with an arcade game when they score a certain percentage in each lesson.
Students have three chances to an swer each question before the cor rect answer is displayed. The student's performance is recorded at the end of every lesson. Each program holds up to 200 names and records which teachers can view or print out. Teachers may
Presidential Elections Predictor
With President Elect—1988 Edition, you can simulate any presidential
election from 1960 through the up coming 1988 election. This new game from Strategic Simulations contains a roster of 71 actual candi dates, or you can create your own candidate. The game covers a nineweek period—from Labor Day to
Election Night—in which you must campaign, allocate campaign funds, study the polls, and perform the duties of a candidate or campaign
choose the percentage of correct re sponses, and choose to turn the sound on or off, The first program, Addition and
The program rates candidates on social, economic, and foreign
for addition and five levels for sub traction. The program also offers
Circle Reader Service Number 202.
Arcade-Style Adventures
In Sky Runner from Spinnaker, you must protect twenty-fourth-century
man from the drug, Sky, by de
stroying the Sky-manufacturing machines and their defenses. Your
jet skimmer and three sky bikers help you out. In Bazooka Bill, you have to ward off various enemy soldiers, tanks, trucks, and aircraft using your fists and an arsenal of machine
guns, flame throwers, knives, ba zookas, and jet fighters. There are over 100 screens of territory with as many as 15 attackers on one screen. Both of these arcade-adventure games for the Commodore 64 re quire a joystick. The retail price for Sky Runner is $29.95; Bazooka Bill is $19.95. Spinnaker Software, 1 Kendall Square, Cambridge, MA 02139 Circle Reader Service Number 203.
New Releases From Broderbund
Several new software packages are
cation and Long Division, like Addi
now available for the Commodore
tion and Subtraction, has six levels of difficulty for multiplication and five levels for division, plus two more levels for mixed operations. Both of these programs are part of the Parts of Speech includes six dif
ferent lessons: nouns, verbs, pro nouns, adjectives, adverbs, and
magnetism, and poise. Other vari-
prepositions.
September 198?
$44.95.
two levels of difficulty in the mixed-operations section. Multipli
policy as well as speaking ability, COMPUTEVs CazoUe
ing the capital city of each state, and learning the principal cities in a state. Each of these programs is available on the Commodore 64 for
Subtraction, has six difficulty levels
Whole Numbers series.
manager.
92
choose to use the game option,
States and Capitals provides eight lessons in U.S. geography, in cluding two-letter abbreviations for
64 from Brederbund. Type!, a typ ing-instruction program, comes with a limited-time offer in which
you can receive a $10 rebate if you mail Broderbund the program disk
from an old typing-instruction pro gram, along with a coupon and your sales receipt for Type!. Retail
price is $39.95. Cauldron is two games in one.
In the first game, you are a witch
queen in search of your golden broom which has been stolen by
Deep Space retails for $39.95 for the Commodore 64 version.
the pumpking. In the second game,
Sir-Tech Software, P.O. Box 245, Charlestown Ogdensburg Mall, Og-
you take the part of ihe pumpking
densburg, NY 13669
warrior who must destroy the witch
Circle Reader Service Number 205.
magic spell in the cauldron. There are over 190 scenes with sound and
music. The retail price for the pack age is $29.95. Broderbund has reduced the
from Firebird, and you and your ro bot must absorb the energy from the sentry in order to save the world. However, at the same
queen. In both games, the object is to collect ingredients to brew a
and her army of landgazers in The Sentry. Energy is the most impor tant commodity in this new game
Create A BBS With The Boss from SoftTools, you can create your own bulletin board system, customizing it for your users.
time, you
have to avoid the stares of the landrovers, which will steal your ener gy. All the action takes place over
10,000 landscapes in 3-D graphics.
The Sentry for the Commodore 64 includes an illustrated book, a
carousel, and jet planes. You can
The Boss is written in machine lan guage for speed and is not copy protected. The program contains most of the code for a telecommuni cations program, and it also helps
then print out your design, paste it onto cardstock, and cut out and as
you write small routines to add to
Circle Reader Service Number 208.
the programs. The latest version in
price of The Toy Shop to $39.95. This program assists you in design
ing models such as antique trucks, a
semble the model. There is also a
Toy Shop Refit! for $19.95. Brfiderbund Software, 17 Paul Dr., San Rafael, CA 94903-2101 Circle Reader Service Number 204.
cludes a system editor with word wrap for 80-column mode.
SoftTools provides telephone support for registered users of The Boss, as well as a manual, a newslet ter, and the Generic BBS service.
Space Defenders Deep Space is a 3-D space combat simulation packaged to resemble a
briefing kit; it comes in an accor dion-style file folder with press clippings, a memo from the Commander-in-Chief, a letter from the President of United Planets, an in telligence report on Operation Co pernicus, and the starship training
manual.
The price of The Boss is $35. Disk updates are available for $10. SoftTools, Snowdon, P.O. Box 7205, Montreal, Quebec, Canada
quick-key guide, and a pin-on but
ton. Suggested retail price is $39.95. Firebird Licensees, P.O. Box 49, Ramsey, Nj 07446
Be A Sub Commander You can take command of a World War II
fleet-class submarine with
ActionSoft's Up Periscope! for the
Commodore 64. There are 14 his torical scenarios for you to follow, or you can create your own dives. Your mission is to search the Atlan
tic and Pacific Oceans for freighters,
H3X 3Y3 Circle Reader Service Number 206.
Brush Up On Your Etiquette A new program from Blue Lion Software is designed to help people of all ages increase their knowledge of proper manners, both at home and internationally. RSVP presents
a variety of social and business situ ations and then tests the player's response. First, the player chooses a career and then responds to reallife situations such as troublesome
Control tower view from Deep Space.
The goal is to defend the aster oid belt between Jupiter and Mars
from invading aliens. There are four main missionsâ&#x20AC;&#x201D;collect uranium deposits, escort envoy ships out of
hostile territory, eliminate a deadly bacteria, and defend the Hurculis base from attack. Your spaceship cockpit has an instrument panel display, side views, and a view from the control tower. The actual laws of motion in space take effect
..henever you maneuver the ship. Three skill levels are available.
A scene from ActionSoft's Up Periscope!
telephone calls and preparing busi ness letters. The player's career pro gresses as he or she appropriately responds to the scenarios. Outside of business, there are also roleplaying games for formal dinner
tankers, troop ships, destroyers, and battleships, and to torpedo all enemy vessels. Your equipment in cludes an instrument panel, radars, a variable-power periscope, torpe do data computer, and charts of the
parties and learning to deal with
oceans. There's an adjustable time
the special ways of friends and as sociates. Question-and-answer sec tions quiz players on various foreign countries and categories. Available for the Commodore 64 for $29.95.
scale and a realilty mode. The ships appear in 3-D graphics.
Retail price is $29.95. ActionSoft, 201 W. Springfield, Ave., Suite 111, Champaign, IL 61820 Circle Reader Service Number 209.
Blue Lion Software, P.O. Box 650, Belmont.MA 02178 Circle Reader Service Number 207.
Energy Crisis Careful moves and strategy are nec essary for you to defeat the sentry
New Releases From EA Electronic Arts has released several new games for the Commodore 64.
With EOS: Earth Orbit Stations, you
are in charge of setting up and maintaining space stations. There COMPUTE'S Gazette
September 1987
93
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THEY'VE DONE IT A GAIN I The programmers who created Snapshot 64, the hottest "memory cap ture" utility on the market, have done it again! Introducing SUPER SNAPSHOT, the ultimate cartridge for the C64/C128. SUPER SNAPSHOT combines several different functions into one revo lutionary new cartridge. First and foremost, SUPER SNAPSHOT is a stateof-the-art memory capture device. This means lhat you can load a program
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SUPER SNAPSHOT works on the C64 or the C128 In the 64 mode! Will copy 99.9% of all memory resident software on the marks! today! ' SUPER SNAPSHOT tiles will run without the cartridge being plugged in! 1 No experience required thanks to our window driven user menus!
| Allows you to combine several different programs onto a single disk! 1 Z4K an board—easlhy expandable to 40K with plug In EPROM'i! ' Our TurboDOS Is the most compatible last loader we've ever tested!
The special built In DOS wedge commands will support devices 8, S, 10 and 11. Our ROM-based machine language monitor wilt NOT corrupt memory! Unique RESUME feature lets you flip In and out of running programs! Hi-res screen dump works with 1525, 1526, S compatibles like Epson S Gemini!
SUPER SNAPSHOT also works with all aftermatkel disk drives tested Id date, such as the MSD, FSD, Enhancer, and more.
Special Bonus: 40 FREE cuslomod designed Kracker Jax parameters complete with last copier.
Why buy a separate cartridge for each major function? A fast loader cartridge. A machine language monitor. A screen dump. DOS wedge commands. A memory capture utility. What would it cost for tour or five cartridges, not to mention an ex
pansion board to hold them all? Thanks to SUPER SNAPSHOT, you'll never have to find out! SPECIAL OFFER FOR SNAP SHOT 64 OWNERS: Send us your working Snapshot 64 cartridge (with the original owner's manual AND the function key overlay card) in good, working condition with your order (or a $10.00 discount oil the price of ihe new SUPER SNAPSHOT! This otter applies only to direct orders.
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THE C-128 CANNON
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157111541
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• FAST COPIER-Great for data OisKs or uie wllh
And these are Jusl some of the things thai the HcapMu Labai wuurd can do! So Ihe ne>1 time your custom labels need a special touch, just summon up a little magic —from Ihe Wizard.
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• 158t FAST COPIER—For use with me new high speed 3.5'drlval • 1M1 FILE COPIER—For high speed file manipu lation! • MFM COPIER—Coploi unprotected IBM and CP(M disks! • TO EDITOH-Works with 1541, 1571. and the no* 1581 drivel! •EflROR SCANNER—Complete with onscfeen dllptftyj
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• A NIBBLER—lor backing up your protected programs! • A FILE COPIER—tor easy file maintenance and
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I
2700 NE Anuresun Boad/Vancouver. Wfl 98661 Phone orders welcome 206-695-1393 Same day shippmg/No COD orders outside U S
add S3 00 |g loinl onJtr • All ordtn mu>l b« paid In U.S. lunds.
DEALERS—WE HAVE THE SUPPORT YOU'RE LOOKING FOR!
are seven versions, each lasting
from 2 to 40 hours. In each version, you are the CEO and are responsi
ble for every aspect of thenew sta tions, from construction to making a profit. You have a choice of 39 dif
view the action from the top look Into the Eagle's Nest for the
Commodore 64 has a retail price of £29.95. Mindscape, 3444 Dundee Rd.,
ferent modules—such as shuttle-
Norttibrook, II 60062
port, telescope, and chemical lab—
Circle Reader Service Number 211.
to construct. And while you're
playing the game, you can also
iearn more about the planets and moons in our solar system.
EOS retails for $29.95. Legacy of the Ancients is a fanta sy adventure game set in the world of Tarmalon. Your mission is to find the wizard's compendium, which contains evil powers. The search
begins at the Museum of the An cients and continues through 12
towns, forests, castles, and a series of dungeons. Along the way, you take part in five games—three com bat games and two at the casino ta bles—and battle many creatures. You can also roh banks and gamble away your prizes.
Legaq/ of the Ancients retails for $29.95. Electronic Arts has also re
leased a new software line, Amaz ing Software. Dan Dare: Pilot of the Future, the first program in the new line, is an adventure game in which Dan Dare searches for his cohorts on an atomic asteroid. Dan must rescue his friends and stop the as teroid from destroying earth. Each screen in Dan Dare repre
is $29.95. Kidsview Software, P.O. Box 9$,
ing down.
Be A Winner The lotto Program analyzes past
Warner, NH 03278 Circle Reader Service Number 214.
BASIC Debugger Micro Detective provides an error detector, debugger, and program
ming utility kit for BASIC program mers on the Commodore 64. The error detector can find and give an
from which you pick the numbers to play. Files can be updated by en
explanation of many errors, includ ing syntax and illegal quantity er rors. The debugger, the bugbuster trace routine, lets you see each
tering the winning numbers from
statement as it is executed, shows
lottery games each week. From the
the value of the variables, and can also trace an expression. You can turn the trace on or off with one keystroke and get a list of the vari ables, loops, and files used. The programmer's utility kit provides
winning lottery numbers and cre ates charts based on probability
charts, players may then choose hot and cold numbers, frequency, pat
terns, sums of digits, odd-even numbers, and digit groups. The program works for six- and seven-
digit lottery games. The Lotto Pro gram includes a program for selecting numbers without your
over 30 commands and a cross ref
computer.
down the program listing using the
The program is disk-based and menu-driven. Cassette tape versions are available by special request.
cursor.
The price for The Lotto Program
is $24.95. Soft-Byte, P.O. Box 556, Forest Park, Dayton, OH 45405
erence of variables. An editing fea ture also allows you to scroll up and
Micro Detective requires a Commodore 64 and disk drive, and retails for $49.95.
American Made Software, P.O. Box 323, Looinis, CA 95650 Circle Reader Service Number 215.
Circle Reader Servire Number 212.
Larger Characters
Bombing Simulator Strategic Simulations has intro
Kidsview Software has released
duced 6-24, a flight simulator that
two products especially for children
contains 19 World War II missions
sents a panel from the comic book
and visually impaired computer us
of the same name. The game in cludes sound, animation, and 3-D
ers. Kidsview can double the size of the characters on the screen. This
graphics.
program is designed to be a devel
flown by the 406th Bombardment Group to the Ploesti, Romania oil fields. B-24 players perform the du ties of the pilot, co-pilot, navigator,
Titles in the Amazing software line will be priced between $20 and
opment and display tool, but it may
engineer, and bombardier of a B-24
also be used to write and run pro
Liberator bomber. The program al lows players to set the flight path, speed, altitude, and bomb drop
$25. Dan Dare will retail for $19.95. Electronic Arts, 1820 Gateway Dr., San Mah'o, CA 94404 Circle Reader Service Number 210.
WWII Rescue Mission Three Allied saboteurs are being held in a top-secret Nazi fortress, and you must rescue them before
grams. It also supports Miippet Learning Keys. Kidsword is a word processor in
which the character
size is enlarged. Users can change
the character and background col ors for most comfortable reading. The Kidsword screen can hold ten lines of text plus two status lines. In both programs, the charac
points. Changeable variables in
clude engine performance and ac curacy of bombing, as well as random weather conditions. The instrument panel indicates altitude, vertical speed, heading, air speed, and degree of bank/turn and pitch.
ter size on a 14-inch monitor is 5/8 inch, and is 1-1/4 inches on a 25-
There are also training missions to
have to destroy the fortress while saving the art treasures of Europe
inch monitor. With the programs,
practice of take-off,
you can display numbers, upper-
bombing skills.
also held by the Nazis. Into the Ea
and lowercase letters, and special
gle's Nest takes you on four mis
characters.
they escape. At the same time, you
sions and features sound, graphics,
Kidsview and Kidsword are
Mostar and Bucharest to allow landing,
and
B-24 is available for the Com modore 64 for $34.95.
and four-way scrolling animation.
available on disk for the Commo
Strategic Simulations, 1046 N. Rengstorff Ave., Mountain View, CA
The action takes place on four floors connected by elevators; you
dore 64 and include a manual. Sug gested retail price for each program
94043 Circle Reader Service Number 216.
96
COMPUTE'S Gaiolla
September 1987
<B
The Commodore Connection AMIGA 500 SYSTEM
Includes: A500, 1 Meg, A10BD Monitor. Mouse, Amiga DOS. Kaleidoscope Call for Best Price! COMMODORE 64 SYSTEM Includes: CB64C Computer, CB1541C Disk Drive, CB1B02 Monitor 519.00
128 System Package
CBM128 Mouse CBM128 512K Memory Expansion C64 Power Supply AMIGA 2000 System
729.00
34.99 169.00 29.99
Call for pricing
Amiga 1 MB Board/OK
249.00
Amiga Genlock Interface
239.00
Amiga Sidecar
799.00
ACCESSORIES Datashield 4 Outlet Surge Protector Curtis SP2 Surge & Spike Protector
14.99 39.99
Curlis Sale Strip with 6 Outlets
19.99
Curtis Universal Printer Stand
14.99
Computer Specialties Power Plus CB12S Universal Monitor Cable
54.99 16.99
color option
1803
179.00
Commodore 1902 MAGNAV0X 515 RGB/Composite
259.00
8502 Composite 8562 RGB/Composite
169.00 279.00
ZENITH ZVM 1220/1230 AMIGA
289.00
(ea.) 99.99
1080 Hi-Res Color
259.00
MODEMS Volksmodem 12
EX-1000 300 Cps, 132 CC4 LQ-1000 24 wire, 132 Col Hi-80 4 Pen Plotter Brother
M-1109 100 cps, 9 Pin HR40 40 cps Daisywheel
6480 -64/128 300-1200 Baud
119.00
Omiga 80 -Amiga 300-1200 Baud HAYES
129.00
Smartmodem 300 Smarlmodem 1200
139.00 3B9.O0
COMMODORE
Amiga 1680-1200 BPS
CBM 1660 (C64] CBM 1670 (C-128)
159.00
49.99 99.99
PRACTICAL PERIPHERALS
1200 BPS External
Call Call
559,00 679.00 319.00
209.00 599.00
159.00
Draw Plus
99.99
149.00
Textcraft w/Grapnic Craft Assembler Enhancer DOS 1.2 Marauder Back-up Grabbit
139.00 239.00
ML-192 160 cps Dot Matrix ML-292 200 cps 80 Col STAR MICR0NICS
369.00 459.00
1NFOCOM
Hitchhiker's Guide
NX-10 120 cps Dot Matrix NX-15 120 cps, 132 Col
189.00 359.00
Dynamic-Cad
379.00
OKIDATA
TOSHIBA
P321SL 24 Wire 80 column
549.00 1139.00
DRIVES COMMODORE
Amiga 2010 3Vi" Internal
Call
Amiga 2020 B14" Internal Amiga 1010 3Vi"
Call 219.00
1541C 1571
179.00 239.00
CSI 10 mb (64-128) XEBEC
949.00
20 mP (Amiga) 9720H
849.00
Amiga 1020 5Vt"
189.00
MAXELL
MD1-M SS/DD BV4"
MD2-DM DS/DD MD2-HDM 5'A" MF1-DDM 3Vi" MF2-DDM 3'/2M
5'A" Hi Density SS/DD DS/DD
32.99 24.99
ELECTRONIC ARTS
Okimate 20 Color Printer ML-182 120 Cps Dot Matrix
Think Jet
59.99 79.99 14.99
DISCOVERY SOFTWARE
Deluxe Paini II Seven Cities of Gold Arctic Fox Deluxe Print Instant Music Deluxe Video Version 1.2
HEWLETT PACKARD
99.99 31.99 .31.99 ..74,99 34.99 99.99 31.99
MICRO ILLUSIONS
339.00
MINDSCAPE
Halley Project MICRO SYSTEMS
Analyze Version 2.0 Scribble On-Lino/Comm
31.99
119,00 64,99 49.99
NEW TEK INC. Digi-View SUBLOGIC Flight Simulator li
159.00 34.99
V.I.P.
V.I.P. Professional
129.00
C64/128 SOFTWARE COMMODORE Jane-integrated (128)
39.99
Geos (or 64. 64C, 128
42.99
BRODERBUND
DISKETTES 89.99
Animator/Images COMMODORE
LX-800 150 cps, 80 Col FX-B6E. FX-286E
ANCHOR
S64"
AEGIS DEVELOPMENT
S459
EPSON
COMMODORE
Commodore
Micro Systems ORGANIZE
EPSON EX-800 300 cps w/7
P351C 24 Pin Color
MONITORS
AMIGA SOFTWARE
PRINTERS
COMMODORE COMPUTERS
Tho Print Shop
8.49
9.49 19.49 12.49 18.49
SONY
MD1D SS/DD 5V«"
7.99
MD2D DS/OD 5W
9.49
MD2HD 5'A" Hi Density
20.49
MFD-IDD 3Vj" SS/DD
12.99
MFD-2DD 3V2" DS/DD
19.99
Graphics Library 1,2,3 The Toy Shop
29.99
fea.) 17.99 39.99
Print Shop Companion PROFESSIONAL SOFTWARE
24.99
Fleet Systems II C12B/64 Fleet Systems ill C128 Trivia Fever
49.99 49.99 19,99
PFS
File
29.99
SUBLOGIC
Flight Simulator Jet Simulator C64
37.99 37.99
In the U.S.A. and Canada
Call toll-free 1-800-233-8950
Outside the U.S.A. 717-327-9575 Telex 51OeOI7898 Fax 717-327-1217 Corporate and Educational Institutions call toll-free: 1-8O0-221-42S3 CMO. 477 East Third Street. Dept. A4O9, William sport. PA 17701
All major credit cards accepted. POLICY: Add 3%. minimum 1700 ahjpjung and handling. Larger shipments ntny require additional charges
Personal & company checks require 3 *vtwks tlonrfmcc. For laster (JeJn^ry use yc**r crodrt card or send cashier's
COMPUTER MAIL ORDER
Chech or Dank nxjney order PA residents add &<&, sales lax Defccli™ software will ta replaced with same
iiom only All hems subject 10 availability and pneo channe All sales final, returned shipmans are subject to restocking fee
Modem
UNIVERSAL RS-232 INTERFACE
Commotion!!!
The Best Commodore Direct-Conned
Mrffb Commodore User Port expansion. ONLY $39.95+$3 S&H Now you can connect and communicate with any of Ihe popular RS-232 peripherals using your Commodore User Port. You can even connect more than one and leave It permanently attached. This
superb expander opens a whole new world to your Commodore com
Modem for ONLY $99.95.
puter's capabilities. You can now connect to printers, modems and
Now that you're able lo do all those stand alone applications with
anyother RS-232 devices. If you already have a device that connects to the User Port, don't worry because the port is duplicated on the outside edge of the interface. Simply plug it in
your Commodore, like word processing, spread sheet analysis, etc.. you are probably thinking "It would sure be nice if I could ex pand the information I have access to." Everything from Electronic
and turn on ttie device you want lo communicate with. Comes complete with sample driver program listings. Compatible with all Commodore
Mail (E-mail) lo stock quotes and huge databases of every imag inable type is now on-line just waiting lor you to dial up. All you
home computers with a user port.
need is a telephone line and a modem connected to your Com
1-year warranty. Order #5232.
modore which allows you to download this information.
Which modem Is best (or you?" Lets first say that almost all modems (and services) are set up to communicate in one of two speeds: 300 and 1200 Baud. If you look around you will find that
there is a flood of 300 baud modems on the market and sometimes at very low prices. The reason is simple, they are be
ing dumped because most computer users prefer 1200 Baud. (1200 Baud is about 4 times as fast which means you spend less lime and money getting the data you want and more time using it.) Virtually everyone who has a 300 would rather have a 1200. You
ApfOSpand-64 Gives your Commodore 6d or 128
full expandability IThis superbly designed expansion module plugs into the expansion port & gives you 4 switchable (singly or in any combination) expansion connectors —plus luse protection—plus a reset button! Before you buy an expander, be sure that it has a
fuse to protect your computer and thai you can activate your car tridges in any combination allowed by the cartridges.
will also notice a few very cheap 1200s on the market at "too good to be true prices". They are. Most are cheaply built foreign copies of American designs. The service and support you receive is minimal-tc-nonexistent for these models.
Recently we re-evaluated our modem line and discovered that the best price'performance tradeoff for our Commodore customers would be a straightforward, easy-to-use unit with no complicated switch settings or indicators, but one that just did
what our customers wanted without complications. To our sur
Order # 5064
NOW ONLY $29.95 + $3 S&H "EXTENDER-64" — 10" Ribbon cable extender for your
prise (and contrary to popular belief!, we found that we could build
Commodore cartridge port.
the unit in the USA with better reliability and performance levels
Order #5065
than anywhere else. We found that because of a significant in
NEW!
crease in reliability that American components and manufacturing give us, we now have the best fail-sale product possible
An
unreliable product is not worth the price, however low. Get a
extender for your Commodore USER port.
Order #5250
modem that will satisfy your present AND future needs by going directly to the American built Aprotek 12CI
What do you get for $99.95? Everything! You don't need to worry about cables, compatibility or anything else! We don't just sell hardware, we sell solutions. The Aprotek 12C plugs directly into
your
Commodore
Vic-20,
C-64. C-64C or C-128 User port.
has status
Commodore Interfaces and Cables Cardprint G-WIZ Printer Interface #1108 Commodore Serial Extension Cables
$46.95 $Call
Amiga Printer Cable (10 ft) #3040-1OMF Commodore 6 Pin Serial Cable (5 It) #3006-5MM Commodore 6 Pin Serial Cable (6 ft) #3Q06-8MM
$16.95 I 7.95 $ 9.9S
Amiga Printer Cable (6 ft] #3040-6MF
PRINTERS
Answer, Auto Dial, Touch-Tone or
dialing,
$21.95 + S3 S&H
Shlpptnu per above Hams: S3. Conl. US
The 12C is a full leature. 300 and 1200 Baud modem with Auto rotary
$19.95 + $3 S&H
"USER EXTENDER" - 10" Ribbon cable
indica
tions on screen to let you know what is happening all the time. The 12C comes complete with "COM TERM 64" a complete com munications and terminal program and has a built In speaker so that you can hear It dial and connect. Just plug it into your com
$12.95
SB. CAN.PKHI.AK.APO.uPS DIiib
SEIKOSHA
Price & Shipping
SP-180VC (C-64) Order 12050 SP-1000VC (C-64) Order#220G
S154.B5 + S10.00 J163.95 + S10.00
TTXpross Portable Printer S2040
$99.95 + $7.00
SfMOOOAS Serial Order #2500 SP-1200AI (EPSOM/IBM) Order 1*2600 MP-1300AI300 CPS Order #2700 WP-1300 Color Kit Order #2705
$184.95 +S10.00 S19B.95 + (10.00 S3B9.B5 + S12.00 $ 99.95+ S 5.00
2.2 lbs • Size 1 1"x4Vi"xtVt" • Iniemal Batteries • S'/j" wide thermal
puter and standard phone jack with the supplied cable. (No addi
paper • 40. 80, or 160 characters/ line • 40 cfiatactersfcecond • 20' roll paper • Centronics Parallel Interlace • 7x9 print font w/decendcrs • Internal
tional power supply required.) Also included is a free trial offer
butler • Emphasized and Underline modes
subscription to Quantum-Link, the Commodore user database.
STILL
NOT
SURE?
Aproteks'
reputation
as
a
first
rate
peripherals supplier and our 5 year warranty on the 12C plus our 2 week satisfaction or your money back guarantee tells you that we support our products. Do you have more than one computer or do you plan to get
ORDER INFORMATION California residents add 6% tax. All prices are cash prices—VISA and MC add 3% to total. We ship ine next business day on money orders, cashier's checks, and charge cards.
A 14-day clearing period is required tor checks. Prices and availability subject lo cnange — CALL Available at Selected Dealers. Dealer Inquiries invited.
For information call 805/987-2454 (8-5 PST) TO ORDER CALL TOLL FREE
another computer? Call or write lor other models.
The bottom line:
Aprotek 1ZC (Commodore) order #12C
only $ 99.95
Aprotsk 12AM (AMIGA) ordar #12AM
only $11 9.95
Aprotek 12R (flS-232 - all others) order «12R....only $119.95 Shlpping-Cont US. = $5., UPS Blue, Can, AK. HI, APO = $10
1 (800) 962-5800 - USA 1 (800) 962-3800 - Calif _^
Or send order to:
DbPx- 1071-A Avenida Acaso CG Camarillo, CA 93010
SOFTWARE DISCOUNTERS V-/ h
/Tk IVI C IX 1 V*/A
•• crpp Free chinninp shipping on on nrHpr<; orders over $100 in continental USA • No Surcharge for VISA/MasterCard • Your card is not charged until we ship
For Orders Only-1-800-225-7638 PA Orders-1-800-223-7784
Customer Service 412-361-5291 ABACUS SOFTWAREAssembler Monitor
.125
SBS19S6 Team Dili SBSCenMgt Disk
114 119
Bun SisirUB CidPik
125 119 US
AVAHTAGE
C id Pik 1)1
1)9
Puwer
19 88
Sigma 7
19 88
ChiMPailll Cobol CubuiUB Forth PawerPlan
111 12S 139 .US US
PPM PPM 128 . Speed Term 64 or 128
IIS 139 I2S
Super C
139
...
SupprC 12S
139
Super Pascal
139
Super Pascal 128
139
IAS
125
IAS 1 IB
119
DeiertFoi
19 88
OeCeplnr
19.8S
Spy vs. Spy I 1 2 19 SS BATTERIES INCLUDED Piperclin o/Spell Pjper<iipl128 The Coniultanl 128
129 149 1J9
BAUDVIllE Bli ring Paddles
123
Trench Parchment Piper/100 PX
19.88
VideoVegas
119
eiRmin softworks
Geosl28 Geos61
Ml 114
■Glo-Clk
ACCISS
•CtvtDOll Pik 1
121
■Geo-Dei ■GeoFile
US 131
■Geo* Font Pik
119
114
-Writer's Workibog 'Geoj 64 idd-un
133
125
programs only!
lamous Course Diik for World Class L.B. 114 Tenlhlrame 125 Triple Pack. BH1. BH2, Raid Otrr Moscow
World Class Leader Board
113
ACCOIADE
.
.119
US
119 119
Turbo load*Save(R]
119
Ilirdhill Hilled UnDI Dead
119 119
Carmen SandiriD:
Thu nde r C hupper Up Periscope!.
119 ..
119
ACTIVISION
Aliens
123
Cron Country
RoadRarr
19 88
Gamemaker
US
Gamemaker library Disks
BROF11RBUHD
US 111
Chop lit (err1 David'i MidnighlMigic Kirateka . luderirnnpr PrinlShop
19-SS 19.88 19.flB 126
P S. Compwriim
123
P.S- Graphics Library KbEa
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114
P.S. Graphics library
Science Fiction
111
Holiday Idilion Foy Shop
Ghostbuslers
19 88
Hacker
19 B8
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CMS
Hacker 2 123 Labyrmth 119 Little Computer People 19 Bfl
CMSAccl.128
Muili Studio 111 Pillall/DemonAIIacl. 19 88 Portal US Shanihai 119
Break thro
113
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123
Ikiti Warriors
123
Tan Timei
119
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Translormers
119
Algeblaiier
131
Math Blaster Ipted Reader 2 Spell II
132 in 1)2
Bf jcb Blinkf 1 Volldbill
19 8B
Br^Ki 1 0
119
Lqurtfrtin Show lump ft
HijthLnd Cjmfi
CM5 Inventory 128
Word Attack 132 C1CITAL SOLUTIONS Pocket Filer 1
133
19 88
PockelPlanner 2
133
Pock el Writer 2
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Liohword Gtrmjn hnkMorllSpjnllh
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Rocky Horror Show Spmdiny .
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114 19 88
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IlltHOIIIC ARTS
Software Clasiir Series: America's Cuo Sailing 19 SB
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Super Suoday
149
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Point t<i)f( SlripPokti
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Summpr Games
114
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19 88
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16.68
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119 .119 119 119
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MB
111
119 119
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11.SB
123
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USICOHW
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1)3
Swiflcalc/Sidenays 118 139 Sylvia Porter's Personal
FicennkerlHJ Fraction Fever (R) Lctler Scrambler fit} Ranch(R).
Eipander
tie Hockey .133 The American Chiller jjt Trill Bluer . .. UchiMata Judn
125
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'
Super Star
Sailins Simulation
"
U9 133
Intrntory M(ml
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Hitchhiker 1 Guide,
121
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USA World
'1,'2.or'l
123
19. SI
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16.88
leather Goddesses
ORIGIN
Raring Dm Set
larlh Orbit Station Legacy of Ancients Marble Midness
16 .BB
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123
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19 M 19 M
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111
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FLirtinpss Fiirm Shop
Comics EithlNiihl
ACTION SOFT
MusiiCirnil Srt One-on-One
CyruiCheis
444
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Bureaucracy 128
19.88 19. BS
Mnrripr Party
THUNPtK MObNFA N
129
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19 88
19.88 19 SB
M.U I E.
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19.88
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BITTER WORKING
A.pof Ares
lor d s of C u nq u est
DraftOnl Lair
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Alice in Wonderland fletn. ihpBuot
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125
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119
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11.99B.
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WarinS. Parilir
Bonus DS. DD
16 99 Bi
119
1)7
Warship
»J7
CompuServe Sljrter Kit
Wizard's Crown
12S
SUBlOGtC
(al25usaieCredil) DiskCaie(Holdi75)..
Base ha II
Disk Drive Clpanur
Celebrity Cuokbook CSM 1511 Alijokil C.P.Copy 2 Doodle 1 inal Cirtridge lunlMislerl ... lonl Mister 128
ClH
129 123 US .139
r,I0S~lnsidp4
Out (Book!
132 Call
l«
12b
fll fib
tElARIUM
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Mu Hip Ian 61 ■i.l" il' i" 64
.til 111 Ml
116
19 88
CEOS- Trirks t Tipi
[Book)
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I liahl Simulator 2 F-S- Scenery Disks Foolbill
129
Dragon World FihrenheltlSl
19 88
Perry A
19 SB
19.88
Rendezvous wJRi ma 19 88
OlikNliKher
.
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114
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.
117
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«IEC Super Gnphir.
159
XETEC Super Graphii Jr. 139 'all program! on di*k
unle» cilSerwise notedi
P.O. BOX 111327-DEPT. CG-BLAWNOX, PA 15238 ■Plei«R.id The FolloBiniOrderinii Terms ICnnditinniCjretully Bdnre Cluing Your Order< Chiton »ilh laihien iKnk ,» monp, onlrr ihipppd immediately un in ilurk ilems Personal t Company checki, jllo. ) oeeks rltjrance. No C.O.D.'s! Shipping: Continental U 1.A.-Orders under IIW] add 13; free shipping on orders over HDD All HI FPO
APO-idd 15 iin ill orders. Cioada t, Puerln Bito-add 110 on all urdpri.i. Sorry, Sorry, no no other other Inlernaliunal Inlernaliunal orders orders arceplpd! arceplpd! PA PA resident resident add add l.% l.% >alei >alei In In on on Ihe Ihe :,,i :,,i .1.1 jmnuni jmnuni ol ol nrde nrdei Including .hipping (barged REASONS FOR CAltlNG CUSTOMER SERVICE ICE -112.361-M9M1) 112361M9M Status oll order d or back bk n.der (1) II any merchandise purchased »ilhin Ml dayilromSD SD
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Includes Free CP/M Programs CP/M Kit includes a helpful guide lo using CP/M such as1 stressing the unique leatutes ol Commodore's CP/M. using
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CHARGE S3 75
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CHIP LEVEL DESIGNS PRESENTS MASS DUPLICATOR 1541
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• For the C64/128 with a single 1541 disk drive.
used with a 1571 or 1581
•15 second, 3 pass backup for
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standard disks! •25 second full GCR Super Nibbler.
the most powerful yetl
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TURBO 64 • Speed-up board for the C-64.
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•Uses 8/16 bit 65816 microproc
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$29.95
(Kernal ROM V4 must
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•For the C64/128 with a MSD SD-2 disk drive. • 15 second standard disk backup!
programs, and games! RAM!
essor (same as the Apple j[gs...
•Simple installation.
MASS DUPLICATOR MSD
$29.95
but twice as fast)!
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•18 second full GCR Quick Nibbler!
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•Loads 700 blocks in 6 seconds on a 1571, 4 seconds on a 1581!
•Lets the 128 run at 'Burst' speed when in 64 mode!
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•Provides the same features as
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$25.95
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CHIP LEVEL DESIGNS
MSD FAST COPY ROM
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• 1571 Mass Duplicator! '1581 Utility Pack!
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how to load alignment program when nothing else will load! Works ontheC64, SX64. C12B in 64or 128 mode. 1541.1571 in either 1541
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POWERFUL LOW COST CONTROL Data acquisition and control interfaces.
C64 & C128.
80-Line Simplified Digilal I/O Board. 40 TTL input lines. 40
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Original Ultimate Interlace. Dual 6522 VIA Board. Four Sbit ports with handshake, timers. IRQ, etc. Expandable. Order Model 64IF22. $169. Additional boards $149, A/D Conversion Module. 16 channels, 8-bits. Requires above. Order Model 64IF/ADC0816. $69.
Super Dink Utilities Super Dlik Ulllltlaa is the ultimate utilities disk tor ihe 1571 disk drive and C12B compuler. An 80 column monitor is required. SDU will copy whole disks (with 1 or 2 drives), perform manyCP/M and MS-DOS utility (unctions, eflit any track or sector, trace dies, copy files, rename a disk, rename a file, change disk formal (without affecting data), scratch or unscratch files, lock or unlock files. erase
a
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SDU does it all1
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Symbol Master Multi-Pass Symbolic Disassembler. Learn lopiogram like the experts! For both C64 and native C128. "...unmatched by simpler monitor disassemblers...a real
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■Commodore 128 Computer •Commodore 1541 Disk Drive •12" Monitor •Commodore Color Printer
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-
C= 128=:
ADD $130
$49995
■Commodore 128 Computer ■Commodore 1571 Disk Drive ■Commodore 1902 Color Monitor
• Commodore 80 Column Printer
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A Complete Pro Football Prediction Program For The 1987 NFL SEASON More In
Accurate vs 'Line' in 1986
'87 To .
BEAT THE SPREAD •
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•
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74
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Predicted Scores Each Week Season Schedule By Week Season Schedule By Team Scores By Week Scores By Team
OR
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INCLUDES DISK AND
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SPECIFY S'.i OR 3H DISK
IBM. Tandy & Compatibles Commodore 64 — 128 Apple II f — lie — Me — llgs TRS80 Mill / IV
Win Loss Record Home/Away
Stats Needed To Run Program Available In
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Local Newspapers Or We Will Furnish All Stats
Stats — Accumulated & Average
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14.05
COMPUTED GAZETTE Author's Guide Here are some suggestions which serve to improve
the speed and accuracy of publication for prospective authors. COMPUTED GAZETTE is primarily interested in new and timely articles on the Commodore 128, 64, Plus/4, and 16. We are much more concerned with the content of an article than with its style, but articles should as be clear and well-explained as possible.
The guidelines below will permit your good ideas and programs to be more easily edited and published: 1. The upper left corner of the first page should contain your name, address, telephone number, and the date of submission.
2. The following information should appear in the upper right corner of the first page: If your article is specifically directed to one model of computer, please state the model name. In addition, please indicate the memory requirements of programs. 3. The underlined title of the article shouid be
placed about % of the way down the first page. 4. Following pages should be typed normally, except that in the upper right corner there should be an abbreviation of the title, your last name, and the page numberâ&#x20AC;&#x201D;for example: Memory Map/Smith/2. 5. All lines within the text of the article must be
double- or triple-spaced. A one-inch margin should be left at the right, left, top, and bottom of each page. No
words should be divided at the ends of lines. And please do not right-justify. Leave the lines ragged. 6. Standard typing or computer paper should be used (no erasable, onionskin, or other thin paper), and
photography, stationery, or computer supply stores). If
possible, programs written in machine language or a compiled language should include source code (or an annotated disassembly if the program was written with a machine language monitor).
9. A good general rule is to spel! out the numbers zero through ten in your article and write higher numbers as numerals (1024). The exceptions to this are: Figure 5, Table 3, TAB(4), and so on. Within ordi nary text, however, the zero through ten should ap pear as words, not numbers. Also, symbols and
abbreviations should not be used within text: Use and (not &), reference (not ref.), through (not thru). 10. For greater clarity, use all capitals when refer ring to keys (RETURN, CTRL, SHIFT), BASIC words (LIST, RND, GOTO), and the language BASIC. Head lines and subheads should, however, be initial caps only, and emphasized words are not capitalized. If you wish to emphasize, underline the word; then it will be italicized during typesetting. 11. Articles can be of any lengthâ&#x20AC;&#x201D;from a single-
line routine to a multiple-issue series. The average article is about four to eight double-spaced, typed pages.
12. We do not consider articles which are submit
ted simultaneously to other publishers. If you wish to send an article to another magazine for consideration,
please do not submit it to us. 13. COMPUTED GAZETTE pays between $70 and
$800 for published articles. In general, the rate reflects the length and quality of the article. Payment is made
typing should be on one side of the paper only
upon acceptance. Following submission (to Editorial
(upper- and lowercase). 7. If you are submitting more than one article, send each one in a separate mailer with its own tape or disk. 8. Short programs (under 20 lines) can easily be included within the text. Longer programs should be separate listings. /( is essential that we have a copy of
Department, COMPUTED GAZETTE, P.O. Box 5406,
the program, recorded twice, on a tape or disk. If your article was written with a word processor, we request that you include a copy of the text file on the tape or disk. If you include a copy of your article on disk, please save the article as plain text, without any spe cial formatting characters or control codes. Most word
Greensboro, NC 27403), it will take from four to eight weeks for us to reply. If your work is accepted, you will be notified by a letter which will include a con
tract for you to sign and return. Rejected manuscripts are returned to authors who enclose a self-addressed,
stamped envelope. 14. If your article is accepted and you subsequent ly make improvements to the program, please submit an entirely new tape or disk and a new copy of the article reflecting the update. We cannot easily make revisions to programs and articles. It is necessary that you send the revised version as if it were a new sub
processors provide an option for saving a document as
mission entirely, but be sure to indicate that your sub
plain ASCII text or in unformatted form. Please use high-quality 10- or 30-minute tapes with the program recorded on both sides. The tape or disk should be labeled with your name and the title of the article.
mission is a revised version by writing Revision on the
Tapes are fairly sturdy, but disks need to be enclosed within plastic or cardboard mailers (available at 106
COMPUTE'S Gazette
September 1987
envelope and the article. 15. COMPUTED GAZETTE does not accept unsolic
ited product reviews. If you are interested in serving on our panel of reviewers, contact the Features Editor for details.
How To Type In COMPUTED GAZETTE Programs Each month, COMPUTED GAZETTE
publishes programs for the Com modore 128, 64, Plus/4, and 16. Each program is clearly marked by title and version. Be sure to type in the correct version for your ma chine. All 64 programs run on the 128 in 64 mode. Be sure to read the
instructions in the corresponding article. This can save time and elim inate any questions which might arise after you begin typing. We frequently publish two programs designed to make typing
easier: The Automatic Proofreader, and MLX, designed for entering
Special Characters
This can be entered on the Commo
Most of the programs listed in each issue contain special control charac ters. To facilitate typing in any pro
grams from the GAZETTE, use the following listing conventions. The most common type of con trol characters in our listings appear
as words within braces: {DOWN} means to press the cursor down key; {5 SPACES} means to press the space bar five times. To indicate that a key should be shifted (hold down the SHIFT key while pressing another key), the character is underlined. For ex
machine language programs.
ample, A means hold down the
When entering a BASIC pro gram, be especially careful with DATA statements as they are ex tremely sensitive to errors. A mis typed number in a DATA statement can cause your machine to "lock
SHIFT key and press A. You may
up" (you'll have no control over the
as many times as indicated (in our
computer). If this happens, the only
example, enter eight SHIFTed A's).
recourse is to turn your computer
If a key is enclosed in special
off then on, erasing what was in memory. So be sure to save a pro gram before you run it. It your com puter crashes, you can always reload the program and look for the error.
When You Read:
Press:
See:
see strange characters on your
screen, but that's to be expected. If you find a number followed by an underlined key enclosed in braces
(for example, {8 A}), type the key
brackets, |<
§, hold down the
Commodore key (at the lower left corner of the keyboard) and press the indicated character. Rarely, you'll see a single letter of the alphabet enclosed in braces.
dore 64 by pressing the CTRL key while typing the letter in braces. For example, {A} means to press CTRL-A.
The Quote Mode
Although you can move the cursor
around the screen with the CRSR keys, often a programmer will want to move the cursor under program
control. This is seen in examples such as {LEFT}, and {HOME} in the program listings. The only way the computer can tell the difference between direct and programmed
cursor control is the quote mode. Once you press the quote key, you're in quote mode. This mode can be confusing if you mistype a
character and cursor left to change it. You'll see a reverse video charac ter (a graphics symbol for cursor left). In this case, you can use the
DELete key to back up and edit the line. Type another quote and you're out of quote mode. If things really get confusing, you can exit quote mode simply by pressing RETURN. Then just cursor up to the mistyped line and fix it.
See:
Press:
See;
{CLR) (HOME) (UP) (DOWN) {LEFT)
For Commodore 64 Only
,. . ,
xommodore! FT]
(RIGHT! (RVS) (OFF! (BLK)
commodoreI [i_
(WHT[
I COMMODORE I | I
(RED)
|COMMODORE] [ 7
|CYN)
■ commodore! f s
COMPUTE'S GwettB
■ ■
■ ■
September 1987
107
The Automatic Proofreader Philip I. Nelson, Assistant Editor
substitutes the full keyword for the ab breviation and allows the Proofreader
"The Automatic Proofreader" helps
to work properly. The same technique works for recheeking programs you've already typed in.
you type in program listings for the
128, 64, Plus/4, and 16 and prevents nearly every kind of typing mistake.
If you're using the Proofreader on
Type in the Proofreader exactly as
the Commodore 128, Plus/4, or 16, do
self, type carefully to avoid mistakes. Don't omit any lines, even if they con
while the Proofreader is active. When you perform a command like GRAPH IC 1, the computer moves everything at the start of BASIC program space—in
listed. Since the program can't check it
tain unfamiliar commands. After finish ing, save a copy or two on disk or tape before running it. This is important be cause the Proofreader erases the BASIC
portion of itself when you run it, leav ing only the machine language portion
not perform any GRAPHIC commands
cluding the Proofreader—to another to crash. The same thing happens if you run any program with a GRAPHIC
command while the Proofreader is in
TURN. After announcing which com
Though the Proofreader doesn't
memory.
displays the message "Proofreader
interfere with other BASIC operations, it's a good idea to disable it before run
Active". Now you're ready to type in a
ning another program. However, the
BASIC program. Every time you finish typing a line and press RETURN, the Proofreader
Proofreader is purposely difficult to dis lodge: it's not affected by tape or disk
displays a two-letter checksum in the upper-left comer of the screen. Com pare this result with the two-letter
checksum printed to the left of the line in the program listing. If the letters match, it's almost certain the line was typed correctly. If the letters don't
match, check for your mistake and cor rect the line.
The Proofreader ignores spaces not
operations, or by pressing RUN/
STOP- RESTORE. The simplest way to disable it is to turn the computer off then on. A gentler method is to SYS to the computer's built-in reset routine (SYS 65341 for the 128, 64738 for the 64, and 65526 for the Plus/4 and 16).
These reset routines erase any program in memory, so be sure to save the pro gram you're typing in before entering the SYS command.
enclosed in quotes, so you can omit or add spaces between keywords and still see a matching checksum. However, since spaces inside quotes are almost al
ways significant, the Proofreader pays attention to them. For example, 10
PRINT'THIS IS BASIC" will generate a different checksum than 10 PRINT'THIS ISBA SIC". A common typing error is transpo sition—typing two successive charac ters in the wrong order, like PIRNT instead of PRINT or 64378 instead of 64738. The Proofreader is sensitive to
the position of each character within the line and thus catches transposition errors.
The Proofreader does not accept
keyword abbreviations (for example, ? instead of PRINT). If you prefer to use
abbreviations, you can still check the line by LISTing it after typing it in, moving the cursor back to the line, and pressing RETURN. LISTing the line 108
COMPUTE'S Gazette
September 1987
If you own a Commodore 64, you may already have wondered whether
the Proofreader works with other pro gramming utilities like "MetaBASIC." The answer is generally yes, if you're using a 64 and activate the Proofreader
after installing the other utility. For ex ample,
first load and activate Meta
BASIC, then load and run the Proofreader. When using the Proofreader with another utility, you should disable both programs before running a BASIC pro gram. While the Proofreader seems un affected by most utilities, there's no way to promise that it will work with any and every combination of utilities you might want to use. The more utili ties activated, the more fragile the sys tem becomes.
The New Automatic Proofreader 10
VEC=PKEK(772)+256*PEEK(773) :LO=43:H1=44
"AUTOMATIC
R FOR
";:iF VEC=42364
PROOFREADE
[SPACElPRINT "C-64"
30
IF VEC=50556
THEN
THEN
"VI
C-20"
40
If
VEC=35158 THEN GRAPHIC
LRiPHINT
50
"PLUS/4
t,
C
16"
IF VEC=17165 THEN LO=45:H1= 46:GRAPHIC CLR:PRINT"128"
60 SA=(PEEK(LO)+256*PEEK(HI))+ 6iADR=SA
70
FOR J=0 TO 166:READ HYT:POK E
ADR,QYT:ADR=ADR+1:CHK=CUK
+BYT:NEXT
80
If
CHK<>20570 THEN PRINT
ERROR*
memory area, causing the Proofreader
in memory. Next, type RUN and press RE
puter it's running on, the Proofreader
20
CHECK TYPING
IN
■*
DATA
STATEMENTS" : END
90 FOR J=l TO 5:READ RF.LF.HF: RS=SA+RF:l(B=INT(RS/256) :LB= RS-(2 56*HB)
100
CHK=CHK+RF+LF+HF:POKE SA+L F.LBiPOKE SA+HF,HB:NEXT 110 IF CHKO22054 TliEN PRINT " •ERROR* RELOAD PROGRAM AND
iSPACEjCHECK FINAL L1NE":EN
d
120 130
poke sa+149,peek(772ji poke SA+150,PEEK(773) IF VEC=17165
THEN
POKE
SA+
14,22iPOKE SA-t-18,23:POKESA+ 140
29,2 24:POKESA+139,224 PRINT CI!R$(147);CHRS( 17 ) ; "
150
PROOFREADER ACTIVE":SYS SA POKE HI,PEEK(HI)t-l :POKE (P
EEK(LO)+256*PEEK{HI))-l,0!N
EW
160
DATA
120,169,73,141,4,3,16
9,3,141,5,3
170
DATA 38,96,165,20,133,167, 165,21,133,168,169
180
DATA 3,141,0,255,162,31,18 1,199,157,227,3
190 DATA 2(52,16,248,169,19,32, 210,255,169,18,32
200
DATA 210,255,160,0,132,180 ,132,176,136,230,180 210 DATA 200,1.85,0,2,240,46,20 1,34,208,8,72 220 DATA 165,176,73,255,133,17 6,104,72,201,32,20B 230 DATA 7,165,176,200,3,104,2 08,226,104,166,1B0
240
DATA 24,165,167,121,0,2,13
3,167,165,168,105
250 DATA 0,133,168,202,208,239 ,240,202,165,167,69
260 DATA 168,72,41,15,168,185, 211,3,32,210,255
270 DATA 104,74,74,74,74,168,1
85,211,3,32,210 280 DATA 2S5,162,31,163,227,3, 149,199,202,16,248 290 DATA 169,146,32,210,255,76 ,96,137,65,66,67
300 DATA 68,69,70,71,72,74,75, 77,a0,81,32,83,88 310 DATA 13,2,7,167,31,32,151,
116,117,151,128,129,167,136 .137
m
A AI Y Machine Language Entry Program
/VILA. For Commodore 64 and 128 Ottis R. Cowper, Technical Editor" "MLX" is a labor-saving utility that allows almost fail-safe entry of machine language programs. Included are versions for the Commodore 64
Once you're in Enter mode, MLX prints
and 128.
on that line, beginning with the first
Type in and save some copies of which
ever version of MLX is appropriate for your computer (you'll want to use it to enter future ML programs from COMPUTEI's GAZETTE). Program 1 is for the Commodore 64, and Program 2 is for the 128 (128 MLX can also be used to
enter Commodore 64 ML programs for use in 64 mode). When you're ready to enter an ML program, load and run
MLX. It asks you for a starting address and an ending address. These addresses appear in the article accompanying the MLX-format program listing you're typing. If you're unfamiliar with machine
language, the addresses (and all other values you enter in MLX) may appear
strange. Instead of the usual decimal numbers you're accustomed to, these
numbers are in hexadecimal—a base 16 numbering system commonly used by ML programmers. Hexadecimal—hex for short—includes the numerals 0-9 and the letters A-F. But don't worryeven if you know nothing about ML or hex, you should have no trouble using MLX.
After you enter the starting and ending addresses, you'Jl be offered the
Entering A listing the address for each program line for you. You then type in all nine numbers two-digit number after the colon (:).
Each line represents eight data bytes and a checksum. Although an MLXformat listing appears similar to the "hex dump" listings from a machine language monitor program, the extra checksum number on the end allows
a program, pick this. Press the E key, and type the first number in the first line of the program listing. If you've al ready typed in part of a program, type the iine number where you left off typ ing at the end of the previous session (be sure to load the partially completed program before you resume entry). In any case, make sure the address you en
ter corresponds to the address of a line in the listing you are entering. Other wise, you'll be unable to enter the data correctly. If you pressed E by mistake, you can return to the command menu by pressing RETURN alone when asked for the address. (You can get back
to the menu from most options by pressing RETURN with no other input.)
6
F
I
O
P
I
2
3
J
K
L B
A M
E
C
D
*
/
0
I
Space
128 MLX Keypad
this value to the number from the ninth column. If the values match, you'll hear a bell tone, the data will be added to the
A
B
C
D
(Fl)
(F3)
<F5)
(F7)
7
8
9
E
(+)
workspace area, and the prompt for the next line of data will appear. But if MLX
5
4
detects a typing error, you'll hear a low buzz and see an error message. The line will then be redisplayed for editing.
6
F
(-) 1
2
3
E
N
Invalid Characters Banned
T
Only a few keys are active while you're entering data, so you may have to un
0
*
E R
learn some habits. You do not type
do not press RETURN after typing the
A functions menu will appear. The first option in the menu is ENTER DATA. If you're just starting to type in
S
bytes and the address and compares
spaces between the columns; MLX
option.
0
4
tor if the rightmost column of data is omitted, but we recommend against it.
It's much easier to let MLX do the proof reading and error checking for you.) When you enter a line, MLX recal culates the checksum from the eight
9
U
dore 128 users can enter the data from an MLX listing using the built-in moni
Choose this option if you're starting to enter a new listing. If you're continuing previous session, don't choose this
s
7
MLX to check your typing. (Commo
option of clearing the workspace.
a listing that's partially typed from a
64 MLX Keypad
automatically inserts these for you. You last number in a line; MLX automatical
ly enters and checks the line after you type the last digit. Only the numerals 0-9 and the let ters A-F can be typed in. If you press any other key (with some exceptions noted below), you'll hear a warning
buzz. To simplify typing, 128 MLX re defines the function keys and + and — keys on the numeric keypad so that you can enter data one-handed. (The 64 version incorporates the keypad modi fication from the March 1986 "BugSwatter" column, lines 485-487.) In either case, the keypad is active only
while entering data. Addresses must be entered with the normal letter and number keys. The figures above show the keypad configurations for each version. MLX checks for transposed charac ters. If you're supposed to type in A0 and instead enter OA, MLX will catch your mistake. There is one error that
can slip past MLX: Because of the checksum formula used, MLX won't
notice if you accidentally type FF in place of 00, and vice versa. And there's a very slim chance that you could gar
ble a line and still end up with a combi nation of characters that adds up to the proper checksum. However, these mis takes should not occur if you take rea sonable care while entering data.
Editing Features To correct typing mistakes before fin ishing a line, use the INST/DEL key to
delete the character to the left of the cursor.
(The cursor-left key also de
letes.) if you mess up a line really badly, press CLR/HOME to start the line over. The RETURN key is also active, but
only before any data is typed on a line. Pressing RETURN at this point returns you to the command menu. After you type a character of data, MLX disables RETURN until the cursor returns to the
start of a line. Remember, you can press CLR/HOME to quickly get to a line COMPUTED Gazelle
September 19B7
109
number prompt. More editing features are available when correcting lines in which MLX
has detected an error. To make correc tions in a line that MLX has redisplayed
for editing, compare the line on the
name. The 128 version makes up for
this by giving you the option of scratch ing the existing file if you want to reuse a filename. Remember that MLX saves the en tire workspace area from the starting
programs will usually have a starting address of 0801 for the 64 or 1C01 for the 128. Other programs must be re loaded to specific addresses with a com mand such as LOAD "filename",8,1 for disk (BLOAD "filename" on the 128) or LOAD "filename",I,I for tape, then
screen with the one printed in the list
address to the ending address, so the
ing, then move the cursor to the mis take and type the correct key. The
save or load may take longer than you
started with a SYS to a particular mem
might expect if you've entered only a
cursor left and right keys provide the
small amount of data from a long list
ory address. On the Commodore 64,
normal cursor controls. (The INST/ DEL key now works as an alternative
ing. When saving a partially completed
such programs is 49152, which corre sponds to MLX address C000. In either
cursor-left key.) You cannot move left
where you stopped typing so you'll know where to resume entry when you reload.
case, you should always refer to the ar
beyond the first character in the line. If you try to move beyond the rightmost character, you'll reenter the line. Dur
listing, make sure to note the address
MLX reports the standard disk or
ing editing, RETURN is active; pressing
tape error messages if any problems are
it tells MLX to recheck the line. You car press the CLR/HOME key to clear the
detected during the save or load. (Tape users should bear in mind that Commo
entire line if you want to start from scratch, or if you want to get to a line number prompt to use RETURN to get back to the menu.
dore computers are never able to detect errors during a save to tape.) MLX also
has three special load error messages:
INCORRECT STARTING ADDRESS,
which means the file you're trying to
Display Data The second menu choice, DISPLAY DATA, examines memory and shows
the contents in the same format as the program listing (including the check sum). When you press D, MLX asks you
for a starting address. Be sure that the starting address you give corresponds to a line number in the listing. Other wise, the checksum display will be meaningless. MLX displays program
lines until it reaches the end of the pro gram, at which point the menu is redis played. You can pause the display by pressing the space bar. (MLX finishes printing the current line before halting.) Press space again to restart the display. To break out of the display and get back
to the menu before the ending address is reached, press RETURN.
Other Menu Options Two more menu selections let you save programs and load them back into the computer. These are SAVE FILE and LOAD FILE; their operation is quite straightforward. When you press S or L,
MLX asks you for the filename. You'll then be asked to press either D or T to select disk or tape. You'l! notice the disk drive starting and stopping several times during a
load or save (save only for the 128 ver sion). Don't panic; this is normal be havior. MLX opens and reads from or writes to the file instead of using the usual LOAD and SAVE commands
(128 MLX makes use of DLOAD). Disk users should also note that the drive prefix 0: is automatically added to the filename (line 750 in 64 MLX), so this
should not be included when entering the name. This also precludes the use of @ for Save-with-RepIace, so remember
to give each version you save a different 110
COMPUTE'S Gazelfo
September 19B7
load does not have the starting address you specified when you ran MLX;
LOAD ENDED AT address, which means the file you're trying to load ends before the ending address you specified when you started MLX; and TRUNCATED AT ENDING AD
DRESS, which means the file you're trying to load extends beyond the end ing address you specified when you started MLX. If you see one of these messages and feel certain that you've
loaded the right file, exit and rerun MLX, being careful to enter the correct starting and ending addresses.
The 128 version also has a CATA LOG DISK option so you can view the contents of the disk directory before saving or loading.
the most common starting address for
ticle which accompanies the ML listing for information on loading and running the program.
An Ounce Of Prevention By the time you finish typing in the data
for a long ML program, you may have several hours invested in the project. Don't take chances—use our "Auto
matic Proofreader" to type the new MLX, and then test your copy thorough
ly before first using it to enter any sig nificant amount of data. Make sure all the menu options work as they should. Enter fragments of the program starting
at several different addresses, then use the Display option to verify that the data has been entered correctly. And be sure to test the Save and Load options several times to ensure that you can re call your work from disk or tape. Don't let a simple typing error in the new
MLX cost you several nights of hard work.
Program 1: MLX For Commodore 64 SS
10 REM VERSION 1.1: 30,950 MODIFIED,
EK
100
POKE 56,50:CLR:DIM INS, I,J,A,B,A$,BS,A(7),NS
DM
110
C4»48:C6-16iC7=7iZ2=2iZ
CJ
120
FA-PEEK(45)+Z6*PEEK(46) :BS=PEEK(55)+Z6"PEEK(56
SB
130
R$=CHR$[13)iL$="[LEFT)"
The QUIT menu option has the ob vious effect—it stops MLX and enters BASIC. The RUN/STOP key is dis
abled, so the Q option lets you exit the program without turning off the com puter. (Of course, RUN/STOP-RE STORE also gets you out.) You'll be asked for verification; press Y to exit to
BASIC, or any other key to return to the menu. After quitting, you can type RUN again and reenter MLX without losing your data, as long as you don't use the clear workspace option.
The Finished Product When you've finished typing all the data for an ML program and saved your work, you're ready to see the results. The instructions for loading and using the finished product vary from program to program. Some ML programs are de signed to be loaded and run like BASIC programs, so all you need to type is LOAD "filename",!} for disk (DLOAD
"filename" on the 128) or LOAD "file name" for tape, and then RUN. Such
05-487
LINES 8 LINES 4
ADDED
4=254iZ5»255:Z6=2 56:Z7= 127
)iH5="0123456789ABCDEF"
:SS="
CO
140
"iDS=CHRS(20):ZS-
CHR?|0)iTS="(l3 RIGHT)11 SD-54272iFOR +23iPOKE
I=SD
TO SD
I,0tHEXT:POKE
(SPACE)SD+24,15iPOKE 7B PC
150
8,52 PRINT"{CLR)"CHRSU42)CH RS(B):POKE E 53261,15
EJ 160 PRINT TS"
53280,15:POK
[REDHRVS]
{2 SPACES)|8 @! {2
SPACES)"SPC(2B)M
(2 SPACESHOFFHBLU) ML
X II (REDHRVS) (2 SPACES]"SPC(28)"
(12 SPACES](BLUl" FR 170 PRINT"(3 DOWN] (3
SPACESjCOMPUTSi"S MA
CHINE
ja
180
LANGUAGE
13 DOWSj"
EDITOR
PHI NT"iBLKlSTARTING ADD
RESS£43'j1GOSUB300iSA-A DtGOSUB1040tIF 0 GP
190
F
3*(AS-".M)~4«(AS-'V")-5
*(A5="J")-6*{A5»"K")
THEN18
PHINT"[BLK](2 SPACESjEN DING ADDRESSg43"fiGOSUB
FX 486 A=A-7*(AS=-LM}-B«(AS=": ")-9*(A5a"U")-10*(A£="I
")-U*(ASa"O'1)-12«(AS-"
P")
300iEA-ADiGOSUBI030iIF
(SPACE)F THEN190 KR 200 INPUT"(3 DOWN)(BLK)CLEA R WORKSPACE [Y/N]E43":A SiIF
LEFTS(AS,1)<>"Y"TH
CM
MP
210
PRINT"[2 DOWNJ[BLU)WORK ING...";:FORI=BS TO BS+ EA-SA+7iPOKE I,0tNEXTiP
DR
220
rint"done" printtab(10)"[2 down)
(blkUhvs) mlx command (SPACE)MENU [DOWN)|4l"I PRINT TS"fRVSJe(OFFJNTE
KC
490
230
PRINT TS"(RVSjD[OFFllSP LAY DATA":PRINT T?"
JS
240
(RVS}l£OFFJOAD FILE" PRINT T$"(RVSJs(OFF)AVE FILE"tPRINT T5"[RVS)Q
(OFF]UIT{2 DOWNHBLKJ" JH
250
GET
ASiIF A5-N?
HK
260 A=0iFOR 1-1
THEN250
270
NEXTiON
A GOTO420,610,6
MX
510
GK
520
280
quit
":inpu
t"£down)£43are you sure [Y/N]";ASjIF LEFT5(AS,
1)<>"Y"THEN220 EM 290 POKE SD+24,0s£ND JX 300 INS=N? tAD=0iINPUTINS:IF
HG
310
B$-INS tGOSUB320:AD=AiBS
=MIDS(IN5,3)IGOSUB320iA
QS
PM
320 A-BiFOR J=l
TO
(AS>"9")*C7iA=A»C6+B
JA GX CH
330
IF B<0 OR B>15 THEN AD" 0iA=-l:J=2 340 NEXT:RETURN 350 B=INT(A/C6)!PHINT MIDS(
H$,B+1,1);:B=A-B*C6:PRI NT MIDS(H5,B+1,1);:RETU
RR
m 360 A-1NT(AD/Z6)1GOSUB3501A
-AD-A*Z6iGOSUB3501 PRINT 370
550
NEXT I:PRINT:PRINTM(UP] (5 RIGHT)";iINPUT#3,INS
PX JC
OS
380 ck=ck*z2+z5*(ck> z7)+a 390 ck-ck+z5*(ck>zs):return 400 print"(down]starting at
£43";:gosub300:if
n$
560
(spacejthen400
EX HD
410
RETURN
420
PRINT"[RVS)
JK SK
430 440
S-N? THEN220 OPES3,3:PRINT POKE19B,0:GOSUB360!lF F
ENTER DATA
(SPACEj"iGOSUB400:IF IN
THEN
INSiPRINT"
(UP]{5 RIGHT}"; GC
HA
HD
450
460
FK
470 480
GS
485
FOR
I»0
TO
24
STEP
3:B$
»SS:FOR J-l TO 2!lF F T HEN BS=MIDS(INS,I+J,1)
PRINT"tRVS}"BSLSnIF K A?tIF AS=KS
1=1
/3J-A PK
570
TO
25
780
580
590
HEH800 FC
790
600 610
GS
B00
MA 810
620
GOSU
OE 820
AD=AD+8iIF AD>EA
640 650
KC
660
EQ
670
THEN
CM
690
RX
700
710
NEXTiIF
FQ
850
CLOSE]:CLOSE15:0N ABS(F
ST<>64
THEN F=3
SA
860
>0)+l GOTO960,970
INPUT#15,A,ASiIF A THEN CL0SE1(CL0SE15IGOSUB10
60 SPRINT"(RVS jERRORi
"A
S
EJ
870 BBS
RETURN
POKE183,PEEK(FA+2)sPOKE 187,PEEK(FA+3)sPOKEIBB, PEEK(FA+4)iIFOP«0THEN92 0
HJ
890
SYS
63466iIF|PEEK(7B3)A
HDD THEN
GOSUB1060:PRIN
T"{D0WN)fRVs] FILE NOT (SPACE]FOUND
":GOTO690
F»0 :GOTO440
sc 910 A=PEEK(B31)+256"PEEK(B3
END OF ENTRY •*(BLK] DOWN)"iGOTO700
PRINT" [CLRH DOWN I [RVS) [SPACE)DISPLAY DATA "iG THEN2
PRINT"[DOWN) [BLUjPRESS:
(RVSlSPACEJOFFj TO PAU
900
GOSUB360iB=BS+AD-SA:FOR
2)-l iF=F-2*(A<EA)-3*(A> EA)iAD=A-AD:GOTO930 KM 920
930
AE
940
XP
950
F8
960
DP
970
PP
9B0
Gfi
990
save
720
FP
730
GET A5tlF A5-"T"THEN PR
[RVS)T(OFFJAPE OR (RVS] D(OFF}lSKi 143"; INT"T{DOWNi"iGOTOB80 IF AS<>"D"THEN730
COMPLETED
*"':GOT
POKE147.0ISYS
63562iIF
(SPACE]ST>0 THEN970 GOSUB1080iPRINT"(BLU}*« LOAD COMPLETED 0220
**":GOT
GOSUB1060iPRINT"{BLK)
(RVSJERROR DURING LOAD: (DOWNl^43":ON F GOSUB98
0,990,1000:GOTO220
ONFGOTO630,660,630
(SPACE)FILE "iOP=0 1NS=NSIINPUT"[DOWN]FILE
GOSUB1080iPRINT"(BLU}«* SAVE
enprint"1down)£blu)»* e
print-(down)[rvs]
GOTO950:SY
0220
nd of data ••":goto220 get asiif as-r5 then go sub10b0igoto220 IF A?=S$ THEN F-F*liGOS
ESPACEJDATA "iOP=liGOTO
63338
A=BS:B=BS+(EA-SA)+1:GOS UB1010:ON OP S 63591
F=l:AD=AD+8tIF AD>EA TH
PRINT"(DOWN}(RVS} LOAD
A-SA:B>=EA+1;GOSUB1010:P
OKE780,3:SYS JF
I=BTO B+7iA=PEEK{l):GOS
NEXT! PRINT" iRVS) "; iA=«CK
AD=PEEK(B29)+2 56*PEEK{B 30)iIF ADOSA THEN F=li GOTO970
[RVS)RETURN[OFFl TO
PR
740
B:GET#1,A$:P
CS
NAMEg43";INSiIF IN5=N5 [SPACE1THEN220 F-0 IP RI NT " ! DOWN ] (BLK ]
HO
F=liGOTO850
TO
840
PRINT"INCORRECT STARTIN G ADDRESS (";:GOSUB360i PRINT")":RETURN PRINT"LOAD ENDED AT ":: AD=SA+AD:GOSUB360:PRINT DS;RETURN
710 PC
1=0
FA
C
OB1080 AD 680
l,8,8,IN$+",P,R"iG
GET*1,A$,B$.AD-ASC(AS+Z
830 FOR
;GOSUB350rPRINT KH
OPEN
LOSE3:PRINT"{DOWN i(BLU]
UB350iGOSUB380iPRINT S$ cc
(BLK)ERROR DURING SAVEi 143"IGOSUB860:GOTO220
S)+256*ASC(B$+ZS)iIF AD
B43"jF-1iGOTO440
GOSUB1080:B»BS+AD-SA:FO
SE, KS 630
GOSUB1060iP RINT"[DOWN 3
OSUB860IIF A THEN220
GO
THEN
OSUB400IIF INS=N$ 20 RJ
NEXTiCLOSEl:CLOSE15iGOT 0940
STEP3:BS»
B1060iPRINT"lBLK)[RVS} (SPACE)ERRORi REENTER L
•• (2
GQ QA
lCHRS(AH)j FOR 1*0 TO BiPRINT#l,CH
■IiI=B
R 1=0 TO 7.-POKE B+I,A(I ):NEXT OQ
AB-IKT(SA/256)iAL-SA-(A H*256)iPRINT#l,CHRS(AL)
RS(PEEK(BS+I))|iIF ST T
THEN GOSUB3B0:A(I
NEXT:IF AOCK
INE HJ
THEN470
IF(AS>"/"ANDAS <"i")OR(A ?>"S"ANDAS<"G")THEN540 A=-(AS-"MM)-2"{AS-",")-
FOR
K25
24THEN PRINT"JOFF}"; GET
PE
MID¥(IN5,D:GOSUB320iIF
in?<>
then gosub1030:if f
770
ASmNEXT JsPRINT
(SPACEJS5;
I IF IN5-N? THEN CLOSES I
ck=int(ad/z6):ck=ad-z4* ck+z5*(ck>z7):goto390
FJ
OPEN 1,8,8,IN5+",P,W":G OSUBE60iIF A THEN220
OKE BS+I,ASC(AS+Z5)iIF( K>B)AND ST THEN F=2iAD
": "f
BE
(SPACE]LS;i1=1-3
540
2tA$=MID
S(BS,J,l>tB-ASC<AS)-C4+
760
RX
GOTO2 20 QC
,15,"I0t"tB"EA-SAiINS="
<>SA THEN
jJ«2-J:IF J THEN
D-AD* 2 5 6+AiRETU RN PP
ENPRINT BJLS;IGOTO540 IF A?OLS AND A$OD5 OR
530
LEN{IN$)< > 4THENRETURN
KP
IP(AS-"{RIGHT]n)ANDF TH ((I=0)AND(J»1))THEN GOS
90,700,2B0sGOSUB1060:GO print"(hvs)
SO
UB1060iGOTO470
TO250
EJ
540
PRINT"D[DOWN)"iOPEN15,a 0i"+INSiIF OP THEN810
T:F"0:GOTO440
TO 5:IF ASMID$("EDLSQ",I,1)THEN A
•=111-5 PD
0",A,1):GOTO
IF AS-RS AND((1>0)AHD(J =1)OR F)THEN PRINT B?;t J»2:NEXT[I=24:GOTO550 500 IF AS="lHOME]" THEN PRI NT BS:J»2:NEXT.I=24!NEX
R DATA" BD
750
A»A-13*(A$«SS)iIF A THE
S AS-MIDS1"ABCD123E456F
EN220 PG
487
HH
FD
1000
PRIHT"TRUNCATED AT ING
RX
1010
END
ADDRESS"tRETURN
AH=-INT(A/256) iAL=A-|AH •256):POKE193,ALiPOKEl
94, AH
PF
1020
FX
1030
AH=INT{B/256)iAL=B-(AH •256):POKE174,AL:POKE1 75,AH:RETURN
IF
AD<SA
OR
AD>EA
THEN
1050 KA
1040
IF(AD>511 AND AD<40960
COMPUTE'S GaZBtte
SeptemDer 1987
11J
)OR|AD>49151 AND AD<53
{OFFjAVE
106B
AP
CQ",AS)tON A GOTO
[SPACE)SD+l,4iPOKE SD+
sx
250
1070
PF
1080
1090
AC
B 9501GOTO 240 PRINT"STARTING
[RVS]
FOR S=l TO 100iNEXT;GO TO1090 POKE SD+5,8:POKE SD+6,
BG
260
PP
270
RETURNiELSE
IF
THEN AD"DEC{AS)
AD»0
THEN
240IPOKE SD,0:POKE SD+
$<>NLS
1,90!POKE
TURNiBEND
FOR
S-l
TO
100:NEXTiPO
KE
SD+4,0iPOKE
KE
SD+l,0iRETURN
MA
280
IF
PM
290
IF
SD,0:PO
250
A5=NLSiINPUT ASiIF LEN{ A5)=4
SD+4,17
AT";:GOS
THEN
AD<SA
BEGIN!IF A
300:ELSE
OR
AD>EA
RE
THEN
AD>511
AND
[SPACE(THEN
GOSUB 950iPRINT"{RVS] NVALID ADDRESS [DOWN]
I
128
[BLKj"iAD»0tRETURN CK=FNHB(AD)tCK=AD-Z4"CK +Z5*(CK>Z7)iGOTO 330 DD 320 CK-CK*Z2+Z5*(CK>Z7)+A
TRAP
960:POKE
4627,128:
DIM NLS,A(7) XP
FB
KE
110
Z2'=2iZ4=-254iZ5-255iZ6-2 56:Z7-127:BS=256*PEEK{4 627):EA=652B0
RD
310
AH
330
QD
340
120
BES=CHRS(7):RTS=CHRS(13 JA
130
):DLS=CHRS(20)iSPS=CHRS (32)!LFS=CHRS(157) DEF FNHB(A)=INT(A/256)i DEF FNLB(A)=A-FNHB(A)*2 56tDEF FNAD(A)-PEEK(A)+ KEY l,"A"iKEY 3,"B"iKEY 5,"C"iKEY 7,"D"iVOL 15
QA
F
140
150
GO 160
FE
170
iIF RGR(0)»5 THEN FAST PRINT"[CLR]11CHRS(142);C HRS(8)iC0L0R 0,15:COLOR 4,15:COLOR
6,15
PRINT TAB(12)"(RED] [RVS][2 SPACES)g9 @3 {2 SPACESi"RTS;TAB(12)" [RVS][2 SPACES)(OFF] (BLU) 128 MLX JRED) (RVS][2 SPACES)"RTS;TAB (12)"(RVS)[13 SPACES] {BLU]"
PRINT"(2
DOWN]
(3 SPACES]COMPUTEI"S MA
CHINE
LANGUAGE
BR
3 50
360
180 PRINT"(BLK)STARTING ADD RESS£43"jiGOSUB 260;IF SE
180
190 PRINT"(BLKj(2 SPACESlEN DING ADDRESS|4|";tGOSUB 2601IF AD THEN LSE
MF
QH
EA=AD:E
370
,3
GOSUB
3101PRINT HEX${AD F THEN
15 SIGHTj"t
FOR
1=0
TO
24
STEP TO
3:8?
I+J.l) PRINT"(RVS]"B5+LFS;iIF
RC
390
[OFF}" I GETKEY A$iIF (AS>"/M AN D AS<"i") OR(A5>"e" AND
[SPACEJK24 THEN PRINT"
A5<"G") AC
OB
RD
470
400
IF AS = " + " THEN AS=""E"iG
410
OTO 470 IF A?="-"
420
430
440
460
600
F=1:AD=AD+8:IF ADJEA TH EN PRINT"£BLU}** END OF
EB
610
GET
DATA **"jGOTO 220 AStIF AS=RT$
RINT OK
620
XS 630 RF
640
BESjGOTO
IF AS-SPS ON
THEN
P
220
THEN F=F+1:PR
F GOTO
570,610,570
PRINT BES"[DOWNHRVS} L
OAD
DATA
":OP=1:GOTO
66
0
PRINT BES"[DOWN][RVSJ S AVE FILE ":OPa0 DM 660 F=0)FS"NLS:INPUT"PILENA BP
650
MEl43"rPSiIF N
RF 670
FS=NLS
THE
220
print"(down](blkl[rvs]t (off)ape or [rvsJd[off!
ISK:
£43";
MC
720
GC
TE ERROR":GOTO 750 730 NEXT AiCLOSE ltPRINT" [BLU)*» SAVE COMPLETED
HEN
IF
(AS="!RIGHT)") PRINT
470
IF
AS<>LFS
[SPACElOR
AND
AS<>DLS
((1=0)
AND
O 390 AS»LFS+SPS+LFSiPRINT BS +LFS;:J=2-JlIF J THEN P
490
A5r:NEXT JsPRINT
FOR
1=1
TO
25
STEP
O
FOR
THEN
TO
BS+EA-SA:
AS = "'DISK WRI
(SPACEJWITHOUT ERRORS
*":GOTO RA
740
•
220
IF
DS=63
SE
1:INPUT"(BLK]REPLACE
THEN
EXISTING FILE
BEGINtCLO
[Y/N]§43
";AS:IF A$="Y" THEN ATCH(FS):PRINTiGOTO
SCR 700
iELSE PRINT"jBLK]"iGOTO 660!BEND
3A
750
CLOSE
1:GOSUB
"[BLK][RVS] G
220
AS=A?+B$:A=DEC(AS)iMIDS (LS,I,2)=AS:IF K25 THE N GOSUB 320iA(I/3)»AiGE T#3,AS
A=BS-2
PRINT#1,CHRS(PEEK(A)Jj:
3iGE
T#3,AS,BSiIF AS-SP? THE N I"-25:NEXTiCLOSE 3iG0T
BS-2,FNLB(S
A):POKE BS-1,FHHB(SA)IP RINT"SAVING ";F?:PRINT
IF ST
(J
THEN GOSUB 950IGOT
760
[SPACEjDS THEN ASBDSSiG
AND F
BS+LFS;:GOT
680
THEN
[SPACE]SPSj
500
S(CK),2)
JH
DP
September 1987
GR
OTO 740 710 BANK 0:POKE
220 PRINT TAB(10)"(DOWN] (BLK)[RVS) MLX COMMAND (EPACE)MENU 8431DOWK)'1!
COMPUTEI's Gazelle
[SPACE)I PRINT"{RVS J";RIGHTS(HEX
4B0
NEXT IiPRINTiPRINT"{UP] [5 RIGHT)"?iLS-" [27 SPACES)"
PRINT TAB(13)"[RVSiS
590
IF AS="(HOME)" THEN PRI
480
HB 230
XB
):PRINT RIGHTS(HEXS(A), 2);SPS;:GOSUB 320iNEXT
O
HA
FILE"
FOR I=B TO B+7!A»PEEK(I
DOPEN»l,lFS+",P"),WiIF
AtPRINT"D
(OFFjOAD
580
700
POKE ONE"
BA
310:B=BS+AD-SA
DJ
EG
RINT LFS;r1*1-3
DATA"RT$;TAB(
PRINT HEXS(AD) + ":",- iGOS UB
BS;:J=2iNEXTiI"24:GOT
ATA"RTS;TAB(13)"(RVS)L
570
T
470
[OFFjNTER
[DOWN]"
XA
PRINT"DISK[DOWN)":IF OP
GB
13)"[RVS]D[OFF)ISPLAY D
[OFF] TO PAUSE, [RVSJRE
TURN(OFF) TO BREAK|4S
690
-1)) PS
BANK 01 PRINT"[DOWN] [BLU]PRESSi [RVS]SPACE
SP
THEN A5="F":G
G...";:BANK 0:FOR A=BS A,0:NEXT
560
THEN
IF AS-RTS AND (<I=0) AN D (J=l) OR F) THEN PRIN
0
450
F=0:AD-AD+8iIF AD<-EA T HEN 360
SUB 2501IF AS-NLS [SPACE]220
470
THEN
JP
B+I,A{I
680 GETKEY AS:IF A5="T" THE N 850IELSE IF AS<>"D" T
NT BStJ=2iNEXTiI-24iNEX TiF=0iGOTO 360 XB
7iPOKE
SQ
OTO FB
THEN
360
PRINT BESiB=BS+AD-SAiFO
INT BES;
2:IF F
REENTER LI
540
3
380
PRINT TAB(13)"£RVS]E
112
0:PRINT:F»0;OPEN
PS
[SPACEjTO BS+(EA-SA)+7:
DC
220
THEN GO
CLOSE 3iPRINT"(D0WN] [BLU]'* END OF ENTRY ** (BLK][2 DOWNj"iGOTO 650 MC 550 PRINT BES;"{CLR)(DOWN! [RVS] DISPLAY DATA "iGO CA
lSPACE]THEN BS-MID5(LS,
200 PRINT"iDOWN][BLK)CLEAR (SPACE)WORKSPACE [Y/N]?
210
THEN
-SP?:FOB J»l
190
i43"!GETKEY ASiIF AS"" Y" THEN 220 PRINT"[DOWN](SLUjWORKIN
BANK
ENTER
":GOSUB 250
(SPACE J LSI PRINT"(UP]
[SPACE]AD THEN SA=ADiEL
FH
AS=NLS
)+":■)iIF
EDITOR
(2 DOWN}"
DK
PRINT BE5;"(RVS) iIF
256*PEEK(A+1)
JB
CK<*CK+Z5*(CK>Z5) .RETURN
[SPACEjDATA
530
BESfi
RETURN
300
XB
AD<65280
SQ
100
520
ERRORi
"iF«-liGOTO
R 1-0 TO )I NEXT I
JP
[SPACE]300
Program 2: MLX For Commodore AE
DX
340,5
UB 260:IF(AD<>0)OR(AS=N LS)THEN
IiIP AOCK
SUB 950tPRINT!PRINT"
50,640,650,930,940iGOSU
POKE SD+5,31iPOKE SD-t-6 ,208iPOKE SD,240:POKE
NEXT
NE
240 GETKEY AStA=INSTR("EDLS
4,33 DX
510
tOFFJUIT[DOWNS[BLK}"
RN
AR
AK
SK"RT S;TAB{13)"[RVS J Q
:RETURN
105D GOSUB1060iPRINT"(RVS] [SPACEjlNVALID ADDRESS [DOWN)[BLK]"iF=lIRETU
HC
FILE"RTS;TAB(1
3)"fRVS)C[OFF)ATALOG DI
248)THEN GOSUB1080iF=0
SAVE:
OTO
FD
760
950IPRINT
ERROR DURIN
£43":PRINT AS:G
220
DOPENil,(FS+",P"):IF DS THEN
AS=DSS:F=4:CLOSE
[SPACE)l!GOTO
790
PX
770
GETtl.AS.BSiCLOSE
WIN
liAD"
ASC(A?)+256*ASC(BS):IF [SPACElADOSA THEN F=l: GOTO KB
780
°SA+FNAD(174)-BS-1iF=-2 •(AD<EA)-3*(AD>EA) BQ
790
IF
F
ER
OJ
S00
S10
THEN
S00:£LSE
T"[BL!J]** D WITHOUT TO
820
EB
830
PRIN
LOAD COMPLETE ERRORS ""jGO
220
GOSUB 9S0:PRINT"[BLK} ERVSj ERROR DURING LOAD I g4§":ON F GOSUB 810,S 20,B30,840:GOTO220 PRINT"IHCORRECT STARTIN
G ADDRESS )":RETURN DP
(";HEX?(AD)r"
PRINT"LOftD ENDED
AT
",-H
EXS(AD):RETURN PRINT"TRUNCATED
AT
ENDI
NG ADDRESS ("HEXS(EA)") ":RETURN PR1NT"DISK ERROR ";AS:R
PP
ETURN
KS
XX
850
860
870
S80
SIX MEMBER - PICK FOLV - P*IIV GAMK
. HUDOk VjHBtH OmVTQfl *CLUtX*.
'Window
vide you with all the data you need to
predict
which
numbers
will
hi,. K
come up In subsequent drawings. All consistent lottery ulnners use some kind of system based an the past win ners. Using the real power of yaur com puter gives you a definite edge. It's menu driven and all you do Is add the latest winners each week and the program does the rest In seconds. On screen or printer It shows hot and cold numbers, frequency, groups, sums-ofdigits, odd/even, wheels numbers and more. No thick manual to read. It even has a built-in tutorial, Ask
your software
dealer or
174,9*
, CQ4OX14E PMlCfi. AMI I OH Lffil
il LTIONMUTM*.C IV MIT.TI «■ MONO C CO"
DOT - ■ ■ - ■ ' *
■ i-
»*■■■■ i>*hotjitb. f TDOH PIOT-OW1. i ■ •■< ■■■'- -
wmoQv ■ ■
>
STOCK BROKERnorm YWl MO!Nf Y BACK
call or
write: ra ■ ■ >-■ 'I 14 ■TOOli hCIMI i-i -I"■ ■
BANK 15:SYS DEC("FF6S") ,0,1:SYS DEC("FFBA"),1,
8tIF OP THEN 890 PRISTiA»SA:B-EA+liGOSUB
920:SYS
DEC("E919"),3i ";F5
P.O. Bo» 556 F. P.irk
1 ).im.in Ohlu 15405 i 233-2200
THE LOTTO PROGRAM is designed for all 6 & 7 draw lotto games (up la 49 numtwis}' DON'T PLAY LOTTO WITHOUT IV APPLE&M/SDOSIBM
Z4.95
COMMODORE & ATARI
21.95
TRSBO& MODIII. IV MACINTOSH Uuper verilon)
21 95 29.95
ACORN OF INDIANA, INC. Z721 OHIOSTPEET hC" H3AN CITY. W 4S3«
219-871-2284 tNC AND HANDLING, AUP t|.» ■ t,\O,D-'» 4CCFPTr.l> VIS* AND MASTUi CARD OHDEU *DD <*
Rt&IDthTl ADD 1* SAlIS TAi
II. ■ ..- ailri 12.00 •hipping/
A=BSiB=BS+(EA-SA)+l:GOS
handling. Tint aervlcf* on
OB 920iSYS
charge card*
DEC("EAI8")i
> HCn—CJtL i" - ■ m»i THAI WDHI
SO FT-BYTE
+2)
PRIHT"SAVING AB
IjHTTEJ E1PHER. GET THB »ET ODM ON *NY I
With Your Computer!
Forget random numbers. This program for home computers does an actual analysis of the past winning numbers. This a mazing program will quickly pro
PRINT"TAPE":AD-POINTER( FSJiBANK 1:A=PE£K(AD):A L=PEEK(AD+1)iAH=PEEK(AD
1,0:SYS DEC("FFBD"),A,A L,AH:SYS DEC(1#FF90"),12 FG
THE LOTTO
790
PRINT'LOADING ";FS:PRIN TiBLOAD(FS),B0,P(BS)!AD
$
PRINT"{DOWH]{BUI]** TAP
CP
890
E SAVE COMPLETED TO 220
SYS
**":GO
DEC{"E99A"):PRINTiI
P PEEK(2B16)=5
THEN GOS
UB 950iPRINTN(DOWNj (BLKHRVSJ FILE NOT FOU ND GQ
900
":GOTO
THEN
F=1:GOTO
B00:EL
SE AD=FNAD(2819)-1iF=-2 *(AD<EA)-3*(AD>EA) JD
910
A=HS:B«>BS + (EA-SA)+1 :GOS UB 920I5YS DEC("E9FB"); IF ST>0 THEN 8001ELSE 7 90
XB
920
POKE193,FNLB{A):POKE194 ,FNHB(A):POKE 174,FNLB( B):POKE
175,FNHB(B)jRET
URN CP
930
CATALOG:PRINT"(DOWNj (.BLUj**
PRESS
OR
""tGETKEY
MENU
OTO
MM
940
ANY KEY F A$iG
2 20
SURE
S:IF AS<>"Y"
THEN
220iE
PRINT"{CLRJ":BANK 1
5 I END JE
950
SOUND
AP
960
IF
HK
970
N IF N KJ
DO
ER-14
AND
RESUME
300
ER=14
AND
RESUME
EL=260
THE
EL=500
THE
NEXT
980
IF
990
F*^4:AS = DSS: RESUME 800 IF ER=30 THEN RESUMEtEL
ER=4
SE
OR
IN
* Choice of Colon Lighr Ton at Brown
AND
EL=780
THEM
ERRS(ER))"
LINE";EL
printed;
COMPUTERS
C-dl Plul 1C-41C
a.oo
C.13S
13.00
Da lane". (C2M)
s.co
13.00 l*/lml)i Urn. SlnMr IB.00 IC.yboard anlr 7.00 Atari 800X1, 130XE 10.00 Atari no sr u.oa IBM PC'XT . 33.00 1000
IBM5O51 «f,bao.d
8.00
(Dirpemioni Required (or IBM Clarui) DISK DBIVtS C-I5J1, C-1S71 Am too 3^" D'Orv Amioo SB" D/Orv
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Stikoiha SP-1000 Con.™ 170
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fpion JK (0
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OVida a 91 Clrlnr M5P 10
13.00 13.00
13.00 C DPS 1101 16.00 G*jnin i lOiStD'10'i 13.00 Gamin i lilSlor IS', 16.00 Atari 1017 13.00 MONITORS Atari SC lj;«Gfl
10.00
ArtttJcli 100 700
19.00
C-170I. BMC Color C-1903 /Amiga CM.UT (CI802)
16.00 19.00
LOTTERY uses
anil StW.nje ,)i yinir
may Don nihc inMir.in.Wi
ot work in your slate
computer tn ileu
10 00 13.00
C-MP5'8O3. C-1SS0 Ponoio"i< 1000 91 Okidaro 130/192 Olrmot. 10/30 FJ
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8.00 13.00 13 00
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1300
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IhampsonCM 3Si 66 19 00 Ta.an (Slnlt "odtl) 1900 Sokota SC-100 1?.00
ZHbh ISloli Mcdol) 19.00 VIDEO BfCORDERS 13.00 5ta!| Mole « Mmldl Dimenipani
required
■nfr<jifli^o (Feet ruf.our
0.<cr b| tilling Mill. MWEl tnJ COLOR CHOICE I1H gi 1ROWN .ilh llKfk irmnntj irdtr plirx 11.50 «r ilfrn [Il.SOnjil ihlpgitg mt hindli] (ill te In!* i1- - Itnl t.r »po. Itt'iiNF F«rr-gn iH'ilKi SPECIA1 COVIR5 Will 6E MADE TO TOUR DIMENSION 1. SEND YOU* REQUIREMENTS FOR OUR IOW PRICE QUOTES.
Crown Custom Covers Mill PAIOE CIRCLE
DEPT. A
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letnods mn
iiii'ii' is i: ■ I'Mtef
join ihe giofil
using on; sysiem
3P£C!FV- -S
iPSt • Lotttrii +■! !-i^ ■■■■■'"II ■ Cot»,f t
IliM !'C
19.00
C-f903A/Maanvx 40 I9.O<3 HCC [(roll Mod>l| 19.00 Magnavo. SO BOB
WITH LOTTERY PC YOUR NEXT TICKET COULD BEWDfTH MILLIONS!
KSOl
iHMflfff'^aie
P.mtctor.lSioreWod.l 19.00
C1H3MPS B01
Epian MK
1,500,10:RETURN
51,000,000?
EXTENDS EQUIPMENT II' I
3.00
[SPACE)[Y/N]?":GETKEY A
YOU
it REAVV 3141. VINTl ANTI-1TAT1C *
QUIT
g43";RTS;"ARE YOU
LSE
guaranteed
F50-1
PRINT BES"'lRVS]
Can Your Computer Make
it CUSTOM MADE 10 FIT
220
PRINT"LOADING ...[DOWNi "iAD=FNAD{2817) :IF ADO SA
DUST COVERS
Alan Si hue
i ilus^hs Jpffinpi Inc
To order sera) SJ>9 95 (Oi each plus S3 00 postage i
handfing pe' order to
illlmois rendcntt add 6% sales tan
iiiilfrNonh (menca add S3 Qtli
COD orders call
(3121566-464?
Supertor Micro sy»«m, inc PO BOi M3 - Vpoetrmg il 6O09D
LACUNA HILLS, CA «DS] (7UJ4
COMPUTED Gazelle
September 1987
113
Handicappers! Football
Horse Pacing
Dog Racing
Pro Football
Tired of wrestling with Sunday point spreads? Let your Commodore 64/128 do it for you! Pigskin Predic tions, trie pro football handicapper, takes the hassle out of rating NFL games. Forget about dealing with reams of arcane statistics. Just spend a few minutes typing in each week's scores and let our point-spread software go to work. Here's what it does: ■ Calculates point spreads and projected won-lost records for all games, for any week of the season. ■ GivBs you menu-driven selection of schedules, ratings, division races, predictions or results by team or week.
■ Seven different reports on screen or printer.
^K
jLUflE ' /
THE
MIRROR DISK COPIER $24.95 NO FINER OR MORE ADVANCED ARCHIVAL COPIER AVAILABLE AT ANY PRICE EASY TO USE. DOES NOT CAUSE DRIVE HEAD TO KNOCK. COPIES UP TO 41 TRACKS. PERIODIC UPDATE POLICY. AUTOMATICALLY MAKES BACK-UP COPIES FROM VIRTUALLY ALL PROTECTED SOFTWARE NIBBLES, HALF TRACKS. COPIES EXTRA SECTORS AND EXTRA TRACKS. REPRODUCES ALL DISK ERRORS AUTOMATICALLY. FAST, COPIES FULl DISK IN AS LI TTLE AS 4 -7 MINS EVEN COPIES ITSELF. WE COPY MORE I MASTERCARD. VISA. MO OR CHECK OK
■ 13 SHIPPING S HANDLING
COD OR FOREIGN ORDERS ADD S2 CALIF ORDERSADD6%SAL£STAX
- WRITE OR CALL -
■ Maintains home field advantage and power ratings for all teams.
The 1987 schedule and data file are included, all for only $44.95. Yearly updates available. You'll be amazed by the speed and power of Pigskin Predictions. Get yours now and be ready for the season!
Use your Commodore 64/128 to improve your per formance at the track! Programs for Thoroughbred, Harness and Greyhound racing rank the horses or dogs in each race quickly and easily. All the informaiion
is readily available from the Racing Form, harness or dog track program.
Thoroughbred factors include speed, distance, past
performance, weight, class, jockey's record, beaten fa
vorite and post position. Harness (actors include speed, post position, driver's record, breaking tenden cies, class, parked-out signs and beaten favorite. Grey hound factors include speed, past performance, ma neuvering ability, favorite box, class, kennel record, beaten favorite and breaking ability. Complete instructions and wagering guide included.
Thoroughbred, Harness or Greyhound Handicappers,
$39.95 each on tape or disk. Any two for $59.95 or all three for $79.95. 1
1
8134 Scotts Level Rd. Baltimore, Md. 21208 Toll-free Orders 800-628-2828 Ext. 850 Information 301-521-4885
MaslcrCarc
1
Federal Hill Software
1
Comoumed ("001 7S8-2436 P O. BOX 6939
SAUNAS. CA 9391? FOR COMMODORE 64 AND 1541 DRIVE OR COMMODORE I2B AND !57I DRIVE
COMPATIBLE DISK DRIVE
$159.00 APPLEII E COMPATIBLE DRIVE
S94.00
APPLE II C COMPATIBLE DRIVE
$96.00
JOYSTICKS
Call
MODEMS 300 AND 1200 BAUD
Call
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Call
FREE SHIPPING THHOUGH AUGUST
IN CONTINENTAL U.S.
To Order call toll free
1 ■ 800 - 283 - 6274
We guarantee your satisfaction!
'NORTH AMERICAN =PRODUCTS INTERNATIONAL 631 NORTH 66th STREET / SPRINGFIELD. OREGON 97477
Classified
SOFTWARE COMMODORE: TRY BEFORE YOU BUY. Best selling games, utlUtltti educational 4classics and new releases. ]00s of lilies.
Visa/MC. Free brochure, RENT-A-DISC Frederick BldB, «34S, Hunl'n, WV 25701 (304) 529-3232
FREE SOETWARE for C64, C128, IBM & CPM Send SASE for info (specify computer) lo:
PUBLIC DOMAIN COLLECTIONS! All menudriven! 5 DS Disks each set, C64 200 games:$10, C64 200 utilities it business:S10, C128 200 mixed programs:! 10. Send to B. C, Keller, 2301 Collins Ave.. "A12O6, Miami Beach, FL 33139
•
TIME TRAVELEH
WHAT HAPPENHPJ WHEN YOU WERF: BOKN?!! Sell printout! Great parly gift! $39, SI and SASE tor printout. (912) 783-U5S Naii.inv,idt; Computer, 205 McCormick Ave.,
Hawkinsvilie, Georfiia 31036 Vis,]/MC/Check
PI.AV "WHEEL Or FORTUNE" & 'FAMILY FEUD" 2 great games ■ one low price:} 19.95.
Also 2 disks - "BOARD GAMES" and "CARD
266 METRIC/US CONVHRSIONS ON TOUR C-64: Calculate automatically quantities in US
GAMES" packed with the best PD games avail
lo Metric Si Metric to US. Send $22.50
PO Bos 1442-A2, Orange Park, FL 32D67
able. Chess, Monopoly, Checkers, SolitJrc &
plus $2.50 S/H (CK/MO) to H. W. Hinsz,
New Plus/4 and C128 Software (disk only) Camus, hducjtion.il, Finance Statistics.
4747 Snow Dr., San lose CA 95111
PUBLIC DOMAIN USERS GROUP
Writi- fur info. CARDINAL SOFTWARE, 14840
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C6J FINEST PUBLIC DOMAIN PROGRAMS Hand-picked and tested! ON DISK! Most SI.50!
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YOU pick the programs that YOU want!
Text: Applied C/R w/32 Examples $10
6250 BPI Mag Tapes. Varying Length?.
For a list and description, send SASE to;
Call The Order Line 201-445-5998 MC/VISA
$5.00 per tape as is. Cabela's 812
C/R 64 EASY - Single paKe Cartridge $25 w/Help, Graphics, Windows only S-15
[LH Co., Dept. G, Bo< 67021, Topeka, KS 66667
Please call these numbers IMMEDIATELY!
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Software
UGIiflPtD/HAPWM Hanalcaoplno 13? 9V •nhanceS.
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irrelch.&lmliripotmorLi Pro Football System .'*}1 05 ProBaikerDariSyitem %ta 9S. Specify cillK:taM COM 64.1134 AddSipUl MC/vriA occenreo
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SMJCG.W KoomlitW.MH(OJ) (Jli)SIi-73H O.0*. I-1CO531-S447
SX-64 OWNERS' STAND UP AND BE
Explanations, uses, commented source code. 585
newsletter, product discounls, free software. Yearly dues $15. USA SX64 USERS GROUP,
"ATTENTION 128 OWNERS/PflOGRAMMEHS" Use Koaln, Flexdraw, Animation Station,
Blazing Paddles, Prinlshop Screen Magic and Doodle graphics in your 128 programs.
Autoload, convert and save to basic 7,
counted! loin USA SX64 Users Group! Monthly
10 Cornwall St., Boston. MA 0213O
LEARN THE CONSTITUTION! Fun Bicentennial educ ^ame ^or C64:$25.IBM version (requires BASIC);S35, Basic Fundamentals Co., 3362 S.
Permutations the 3D display mind pu^/.le
and show. Full help scni-ns. All memory
on computer is available on the Comm.64.
resident + + user subroutines, Check/MO $24.95 postpaid to: Prowarc, PO Box 28, Prosser, IVA 99350 (VVA res. add 7.5%)
11 you like 3D spati.il problems you'll
love this game with 10" permutations!!
RENT 64/128 SOFTWARE! 100's of disks.
Send S24 US check or money order to:
loseph, Michigan 49085 (616) 982-0327
Write: AIM.EX, PO Ho* 60369,
San Diego, CA 92inf.-H369 " COMMODORu REPAIR " C64:S45. SX64:S75. 1511:S50, 1571:S65
Will buy used units. Repairs waiTanted 30 days. Dave Taylor, 5106 Daventry PL, Midland, TX 79705 (915) 683-8398 Visa/MC
PERMUTATIONS
+ save what you draw in basic 7. Super
Cenlsiblo Software, P.O. BOX 930, St.
MISCELLANEOUS PERSONAL COMPUTER OWNERS CAN EARN
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COMPUTE! Books' MACHINE LANGUAGE ROUTINES FOR THE COMMODORE 64/128, pages. S18.95. Check your local bookstore or call
with full warranty. O.MV S139 + $12 (SJtH)
510(10 lo $5000 monthly selling simple services
More than 200 great ML routines (or 64 and 12B. ready lo add lo your oivn programs, tn
(800) 3-16-6 ?6 7.
MO/COD
Attention: Terry Kufc-nacht
FREE PUBLIC DOMAIN SOFTWARE - Request fret catalog or send 52 (or sample disk and catalog (refundable). Commodore 6-1-128 CALOKE 1ND., Box 1H477, KC, MO 6-1133 MOD LM OWNEK5!
Mum it Pop's Computer Shop, RR 2, Bon 119
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Written in ML with supeib graphics in
colors & 3D displav of all components.
rtllfltTi PREMIUM QUALITY!
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10 MILLION DISKS MUST BE SOLDI
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Magic Disk Reg,, PO Bo» =1, Si-Martin, I jv.il, Quebec, Canada H7V3P4. If you liked the Rnbik's Cube1" you'll love this
puzzfa. Ruhik's Cube is a trademark of
Ideal Toy Corp. (color display required)
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COMPUTED Gazette
September 19B7
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115
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102 Abacus 103 Access Software, Inc
31 11
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113 2-3
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98
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114
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91
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55 104
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From Origin comes an all new version of the Computer i Classic, ■
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