Commodore_Power-Play_1983_Issue_05_V2_N02_Summer.pdf

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Summer 1963 Volum8 II Number2

$2.50 U.S.

$3.50 Canada

And Even More GamesfortheCommodore64

Butterfield Fools with Boolean

EnglandTakesthe VIC Seriously

"*• -^""-

BULK RATE

U.S. POSTAGE

PAID

Permit No. 1705

Phlla, PA

Cammodort Business Machinal, Inc.

1200 Wilson Dfmi- ■ Wi-.i Chi-.fr-. PA 19380

No one, not even the author, has

ever achieved the fast Gridrunner. It

is an extremeiy fast-paced arcade-

quality game designed to test your

coolness under fire and challenge

your reflexes.

As the pilot of the Gridrunner, a

combat ship, you must annihilate

the various enemies traveling

along the "Grid." High scores are

possible only through the mastery

of the patterns ofthe X/Y Zappers

and the Gridsearch Droids which,

when destroyed, mutate into

potentially lethal Pods.

Gridrunner has 32 levels of diffi

culty(20 levels in

the VIC 20 ver

sion). To this

date, the 13th

level has been

the highest

achieved.

Gridrunner

Is available

for VIC 20™

and

Commodore

64™.

Can you beat

Gridrunner?

See your local

computer or

games dealer

and find out.

Human Engineered Software

71 Park Lane

Brisbane, CA 94005

a divisionoi U5I

vie 20 and Cornmodurg B4 ars trademarks f>r

Commodo'o Electronic* LW.

♦ t,

Commodore 64™

expansion products

from Micro Systems

Development.

A The InterbusSeries. Three interfaces lor theVIC20 and

Commodore 64: one for IEEE 488, one for RS 232 and one

for Parallel.

The VIE and C1E are IEEE 488 interfaces for the VIC 20.

When plugged into the expansion port, the cartridge is

"transparent," that is, the user can still attach other peripherals

without any interference. Devices such as 4040,8050, 2031, 2032,

4022 and8023 can be controlled. The IEEEsoftwarecan becalled

by using the 'SYS' command, even in the middle ofa

BASIC program.

The V232 and C232 are serial interface cartridges which

allow connection of various input/output devices such as printers,

modems, plotters, etc. to VIC 20 or Commodore 64 computers.

Features include: positive and negative voltage swings to meet full

EIA standards, straps and jumpers to allow reconfiguration to meet

pinouts for any RS232 device, and software selectable reconfigura

tion such as baud rate, parity, and duplex mode.

The VPI and CPI are parallel Interfaces for the VIC 20 and

Commodore 64. These interfaces provide direct BASIC use of the

parallel printer bus and give "invisible" access to thebus. The

VPI can be used only on theVIC20 and uses the expansion port.

The CPI will work with both the VIC 20 and Commodore 64 and

does not use the expansion port. The CPI also has switches (or set

ting insertion or deletion ofline feed, conversion of Commodore

ASCII into standard ASCII or visa versa, addresses printer to device

A. 5, 6 or 7, and allows normallyunprintable Commodore characters

to be printed in a recognizableform.

B Expandoport Series. Expandoport 3 and Expandoport 6 are

three- and six-slot expansion boards for the VIC 20. Each slot on

the Expandoport 6 has a switch for controlling power to that con

nector. The switch allows the use of cartridges which respond to the

same memory space. The Expandoport 6 also has a fuse and reset

switch.The fuse prevents excessive current drain fromthe VIC 20

and protects it from 'shorts'. The reset switch allows the user to

'Restart' the V)C 20 without turning poweroff, This feature allows

RAM, which is located in the ROM expansion area, to be protected

during 'Restart'.

Expandoport 4 is a four port expansion board forthe

Commodore 64. It has thesame featuresas the Expandoport 6and

even allows for the use of varying width cartridges.

C Terminal PakSeries. D Audit) Link.

C Terminal PakSeries. The VTE 40 Terminal Emulator

(VTE 40}is a hardware and software package which converts the

VIC 20 into a 40-column communications terminal. TheVTE 40

cartridge is complete. Various set-up parameters such asbaud rate,

parity, duplex, and bits percharactercan be selected through a

'menu' format. VTE 40 features are: 40 x 25 text display, user

definable communication specs, smooth or normal scroll, print infor

mation to printer or disk, generation of control codes, selective

omission ofdata, continuous status line.

The CTE/VTETerminal Emulator(CTE/VTE) is a software

program which converts the VIC 20 or Commodore 64 into a ter

minal. The usercan 'softwareselect' the baud rate compatible with

the modem used Full upper and lower casecharactersare supported

Call toll free

for nearest dealer

1-800-527-5285

Lifetime warranty

available upon

return of Product

warranty card

E Monitor link.

D Audio Link. An audio cassette adapter interface for the

VIC20. Features include: use of regular cassette recorders, conver

sion of VIC 20 digital data to audio and visa versa, normal and

invertedcassette signal, remoteon/off control andcontrol of

external devices.

E Monitor Link. This cable assembly allows the VIC20 and/or

the Commodore 64 to interface with a monitor instead of aTV. The

Monitor Link providesseparate video and audio output, This enables

the sound output to go directly into astereo system for unmatched

audio quality. The Monitor Link is great for applicationswhere aTV

is not desired. It allowsthe Commodore 64 user to have high quality

resolution on black and white monitors,

VK20™ai<dCmmodoicM™,CBM™andPET™verc»Ht™J(wfenwteulCmunodoiE

HrtMl*

MICRO W SYSTEMS DEVELOPMENT, INC.

111O3 SHADY TRAIL • SUTE 1Od • DALLAS. TEXAS 7B2SS

Expnndupcrt, Audio Link. Ininbut. Terminal ft*. VRAM and Monitor(.ink artcopywriJal by Micro

Sync™ Dl I

V J

power

■home compuCinq

features

Summer 1983 Volume II Number 2

gays

i-*-^*-"*i"!3

New Carlri

■Bl

sat-.?-. ^

34 And Even More New Cartridge Games forthe Commodore 64

by Diane LeBold

Three Bally/Midwayarcadehits top the list ofexciting new cartridge games

for the Commodore 64.

38 OOPS! byJeffBruette

ACommodoregame programmerreveals howyoucan usecertain bugs

(let'scall them"undocumented features") toscorehigher inCommodore's

OmegaRace and GORFcartridges for theVIC20.

dge Games

40 Omega Race: AJoystickWorks, Tool by David Owens

You can gethighscores in OmegaRace usingajoystick.Areader replies to

DavidBerezowki's claim, intheWinter issue, thatpaddlesarethe bestway

to get those 200,000+ scores.

42 Making FriendsWith SID, Part3: The Commodore 64 Piano

byPaulHigginbottom

TurnyourCommodore 64 into apianokeyboardthatsoundslike a real

piano, as Paul continueshisseriesonusingyour Sound Interface Device.

■

46 Bit-Mapped Graphicsonthe Commodore 64 byJim Gracely

Our newtechnical editormakes hisdebutwith somevaluableinsightinto

producinghigh resolution graphicsonyour 64.

OOF'S

50 England Takes theVIC Seriously by Mike Smith

Fournew business packages fortheVIC 20, created intheUnitedKingdom,

will soon bemarketed inthe U.S.A memberofCommodore's Software

ProductsGroup in the U.K. explains them.

Omega Race

departments

Letters

9 Braindrops From the Editor

11 We'reGladYouAsked

Technical editorJimCracelyanswers readers'questions

12 TheVICMagician

CreatingAttractive ScreenTitles byMichaelTomczyk

15 Butterfleld

Foolin'with Boolean by Jim Butterfield

20 The CommodoreChallengeContest

A tit between two greatgame programs submitted by ourtalented readers. Typeand

savePIO by George CurrieAND TheMaze by George Short.Then fill out the entry

blank and send ina copy ofyour best. Maybe you'll be the next winner!

25 HighScores

How doyou measureup inourongoingcompetition? Canyouheat thesechampion

flamesters' scores? Send in a photo ofyour best.

SID

27 UserCroup Spotlight

Remote Terminal: The Old Harbor, Alaska, UserGroup byJohnO'Brien

28 Access: CommodoreUserGroups

Acomplete list ofuser groupsaround theworld

53 No MorePencils, NoMoreBooks...

A Flr«t Lookat LOCO by David Malmberg

We welcome David asa regularcontributor. Watch his column each issueforthe

latest scoop on learningat home.

58 Kids' Comer

The best from our "Commodore Kids" is nowa regulardepartment, edited by Betsy

Bymeofthe New Mexico Commodore User Group. Look here from now on forthings

by and about kids.

71 Jiffies

The Octopus Maze byGerald and Betty Schueler

Alphamalch by Barbara J. Moody

Joyrite byMike andAnnette Hinshaw

Reinventing theWheel in PETBASIC by Dean S. Rossa

STAR:AnAstronomyProgram byAlex Bakman

88 Programs

Some simple programs to type andsave.

FOR... NEXT Sound Effects byJim Lockrfdge

)Sulii'tlii hi1- Machine Language Revisited byCarl Robertson

90 Tele/Scope

Dynamic File Translator bvJeffHand

93 Program Review

Vixel forFun and Learning byJohn Watkin

94 Glitch Fix

Ifwe make a mistake, this iswherewe repair il.

100 NewProducts

New developments forCommodore computers from independent manufacturers.

103 Commodore Product List

108 Advertisers Index

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