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Your Computer (GB)

Your Computer was a multi-format magazine published by IPC Electrical-Electronic Press (Jun 1981 to Mar 1983), Business Press International (Apr 1983 to Dec 1985), and Focus Magazines (Jan 1986 onwards). The first two issues were bi-monthly, then it was published monthly from Oct 1981 onwards. It covered a wide range of topics including hardware reviews, technical articles, and games. ST Update was incorporated into the magazine from Dec 1987 onwards. The editors were Duncan Scot (Jun 1981 to Apr 1982), Toby Wolpe (May 1982 to Jan 1986), Simon Beesley (Feb 1986), Gary Evans (Mar 1986 to Mar 1987), Simon Craven (Apr 1987 to Dec 1987) and Francis Jago (Jan 1988 onwards).

Download all programs from this magazine on four disks:


YourComp1 81-82.d64

YourComp2 83.d64

YourComp3 84.d64

YourComp4 85.d64

119 programs

Program Author Requirements Files Info
High-Resolution Displays

Vol 1 No 3 (Oct 1981),
Pages 29-30.
Nick Hampshire Unexpanded hi-res gfx.prg
Screenshot
Programming demo showing how to create user-defined characters.
Controls:
None.
Joystick Control

Vol 1 No 4 (Nov 1981),
Page 39.
Nick Hampshire Unexpanded joystick ctrl.prg
Screenshot
Subroutine demonstrating how to read the joystick from Basic.
Controls:
None.
How to Tackle Vic Colour and Sound

Vol 2 No 1 (Jan 1982),
Pages 38-39.
Tim Hartnell Unexpanded vic col sound.t64
Screenshot
Various subroutines demonstrating how to use colour and sound.
Controls:
None.
The Sound Of Vic

Vol 2 No 2 (Feb 1982),
Page 51.
Nick Hampshire Unexpanded sound of vic.t64
Screenshot
Six short programs that demonstrate the following sound effects: breaking waves, galloping horse, ringing telephone, grandfather clock, birds singing, octave scale.
Controls:
None.
Guessing Game

Vol 2 No 3 (Mar 1982),
Page 70.
J Wise Unexpanded guessing game.prg
Screenshot
Try to guess a random number between 1 and 20 in the fewest possible tries.
Controls:
Type your guess (1-20).
Piano Keys

Vol 2 No 3 (Mar 1982),
Page 73.
Nalin Sharma Unexpanded piano keys.prg
Screenshot
Use your Vic-20 as a musical keyboard.
Controls:
Q-*, A-Return, Z-/ (play note), Space (silence), 1-4 (select voice).
Vic Colour Graphics

Vol 2 No 4 (Apr 1982),
Pages 57-58.
Nick Hampshire Unexpanded/3K vic col gfx un-3k.t64
Screenshot
Two programs demonstrating how to use hi-res graphics. The first listing (Hi-res Function) is for the unexpanded Vic-20, and the second listing (Hi-res Lines) requires 3K memory expansion.
Controls:
None.
Breaking Out
(a.k.a. Breakout)

Vol 2 No 4 (Apr 1982),
Pages 71-72.
J D H Jones Unexpanded breaking out.prg
Screenshot
Breakout-style game. Use your bat-and-ball to break through the wall and escape at the top of the screen.
Controls:
Z (left), C (right).
Alien Arcade

Vol 2 No 4 (Apr 1982),
Pages 77-79.
Stuart Debuse Unexpanded alien arcade.prg
Screenshot
Vertically-scrolling space game. Hit the alien ships and dodge the asteroids.
Controls:
Z (left), M (right).
Tank Battle

Vol 2 No 5 (May 1982),
Pages 34-35.
David Prosser Unexpanded tank battle.prg
Screenshot
Two-player game. Navigate the maze to shoot the other player's tank, but don't hit any mines.
Controls:
Player 1: S (left), D (right), E (up), X (down), 3 (fire).
Player 2: : (left), ; (right), @ (up), / (down), - (fire).
High Resolution

Vol 2 No 5 (May 1982),
Pages 75-76.
David Rees Unexpanded high resolution.t64
Screenshot
Programs demonstrating how to draw a diagonal line, a sine curve and a circle using hi-res graphics.
Controls:
None.
Block Graphs

Vol 2 No 5 (May 1982),
Page 76.
Jenny Dodsworth Unexpanded block graphs.prg
Screenshot
Utility, display monthly data on a bar chart.
Controls:
Follow on-screen prompts.
Fighter Raid

Vol 2 No 5 (May 1982),
Pages 83-84.
C J Hall Unexpanded fighter raid.prg
Screenshot
You have 100 rockets, try to shoot as many fighter planes as you can.
Controls:
Any key (fire).
Mars Revenge

Vol 2 No 6 (Jun 1982),
Pages 40-41.
Paul Edmond Unexpanded mars revenge.prg
Screenshot
Shoot as many Martians as you can in 90 seconds, but don't let their indestructable missiles touch your ship.
Controls:
< (left), > (right), Space (fire).
Key To Functions

Vol 2 No 6 (Jun 1982),
Pages 73-75.
C J Cattenach Unexpanded key to func.prg
Screenshot
Short routine demonstrating how to use the function keys in your own programs.
Controls:
F1-F4 (show message).
Tunnel Vision
(a.k.a. Maze)

Vol 2 No 6 (Jun 1982),
Page 77.
D M Jones Unexpanded tunnel vision.prg
Screenshot
Maze game. Navigate through a random maze to reach exit (circle) at the bottom of the screen in the least number of moves, without touching the walls.
Controls:
6 (left), 8 (right), 4 (up), 2 (down), 0 (demolish nearby walls).
Simon Challenge

Vol 2 No 7 (Jul 1982),
Pages 54-55.
David Reichental Unexpanded simon challenge.prg
Screenshot
Simon memory game. The computer plays a sequence of numbers, which you must memorise and repeat without making any mistakes.
Controls:
F1 (1), F3 (2), F5 (3), F7 (4).
Ragtime RAM

Vol 2 No 7 (Jul 1982),
Pages 83-85.
Ian Greenshields & Steve Tucker Unexpanded/3K ragtime un-3k.t64
Screenshot
Plays a tune in two-part harmony. The first program (unexpanded) plays a ragtime tune, and the alternative version (3K expansion) plays a baroque air.
Controls:
None.
Duck Shoot

Vol 2 No 8 (Aug 1982),
Pages 42-43.
David Prosser Unexpanded duck shoot.prg
Screenshot
Aim your gun to hit the duck in the middle of its back, but don't shoot yourself or the moon. You get three tries at each duck, and five ducks to shoot.
Controls:
Type the angle of your shot (20-90).
Earth Invader

Vol 2 No 8 (Aug 1982),
Page 79.
Bharat Patel Unexpanded earth invaders.prg
Screenshot
Maze game. Navigate through the maze dodging the asteroids to rescue the princess (diamond) at the top of the screen, then destroy the Earth Invader (club) by moving on top of it and pressing 'F'.
Controls:
I (left), P (right), O (up), L (down), F (fire).
Sounds of Alarm

Vol 2 No 8 (Aug 1982),
Page 85.
Vol 2 No 10 (Oct 1982),
Page 15.
David Harmes & David Martin Unexpanded sounds of alarm.prg
Screenshot
Utility. Turns your computer into an alarm clock.
Controls:
F1 (silence alarm), F7 (set alarm time).
Vic Dambuster
(a.k.a. Nibblers)

Vol 2 No 9 (Sep 1982),
Pages 42-43.
Dave Shambrook Unexpanded nibblers.prg
Screenshot
Stop the Nibblers from destroying your dam by launching your ships and dropping bombs on them.
Controls:
Space (press once to launch, and a second time to drop your bomb).
Vic-20 Assembler
(a.k.a. 6502 Assembler)

Vol 2 No 9 (Sep 1982),
Pages 58-60.
Vol 2 No 11 (Nov 1982),
Page 15.
Philip Horton 16K expansion 6502 assem 16k.prg
Screenshot
Programming utility, assemble & disassemble machine language programs.
Controls:
See the magazine for details.
Life Expectancy

Vol 2 No 9 (Sep 1982),
Page 90.
Bharat Patel Unexpanded life expectancy.prg
Screenshot
Utility. Asks lifestyle questions like whether you smoke or drink, then estimates how long you might expect to live.
Controls:
Follow on-screen prompts.
Change of Memory

Vol 2 No 9 (Sep 1982),
Page 90.
Gavin Warren 8K expansion change mem 8k.prg
Screenshot
Utility. Reconfigures the memory map on the 8K Vic-20 to run unexpanded programs.
Controls:
None.
Writ Large

Vol 2 No 10 (Oct 1982),
Page 15.
A Kavanagh Unexpanded writ large.prg
Screenshot
Small routine to create a double-height character set.
Controls:
To access the double-height characters, use RvsOn with B/C for "A", D/E for "B", etc.
Through the Catacombs

Vol 2 No 10 (Oct 1982),
Pages 56-57.
Patrick Edmond 3K expansion catacombs 3k.prg
Screenshot
Pac Man-style game. Collect the dots and bonus objects from the maze, while avoiding the ghosts & flickering block. If your candle goes out then you won't be able to collect anything until you ring one of the sacred bells.
Controls:
G (left), H (right), Y (up), B (down).
Little Black Book
(a.k.a. Phone Pad)

Vol 2 No 10 (Oct 1982),
Pages 85-87.
P Hintjens Unexpanded phone pad.prg
Screenshot
Utility. Store your telephone numbers on the computer.
Controls:
Follow on-screen prompts.
Poly-pen Music
(a.k.a. Polyphonic Pen)

Vol 2 No 10 (Oct 1982),
Page 93.
Richard Barton Unexpanded & Stack light pen polyphonic pen.prg
Screenshot
Stylophone program, create sounds using a lightpen.
Controls:
Follow on-screen prompts.
Night Racer
(a.k.a. Night Driver)

Vol 2 No 11 (Nov 1982),
Pages 44-45.
Dirk Lampe 3K expansion night racer 3k.prg
Screenshot
Car racing game. Drive your car along a winding road without crashing.
Controls:
F (left), H (right), G (accelerate), T (decelerate).
Harnessing the Vic's Vector

Vol 2 No 11 (Nov 1982),
Pages 67-68.
Ian Hegerty Unexpanded harness vector.t64
Screenshot
Two small programs demonstrating how to use interrupts.
Controls:
Interrupt Demo: SYS7424 (start program).
Key Define: SYS7480 (start program), F1 (turn screen black), F2 (restore screen), F3 (max volume), F4 (volume off), F5 (cassette motor off), F6 (cassette motor on), F7 (key repeat), F8 (no repeat), CBM+Shift+Ctrl+F5 (reset computer).
Dodgems

Vol 2 No 11 (Nov 1982),
Pages 101-103.
Nagaraj Jayakumar Unexpanded dodgems.prg
Screenshot
Dodgems game. Drive around the maze for as long as possible without crashing into the computer car.
Controls:
A (move to inner lane), L (move to outer lane).
Breakout

Vol 2 No 12 (Dec 1982),
Pages 56-57.
John Cullen Unexpanded breakout.prg
Screenshot
Breakout-style game. Use your bat-and-ball game to destroy all the bricks.
Controls:
Z (left), C (right).
Bomber

Vol 2 No 12 (Dec 1982),
Page 99.
K A Mair Unexpanded bomber.prg
Screenshot
Blitz-style game. Drop bombs to destroy all the buildings so you can land your plane.
Controls:
F (drop bomb).
Vic Synth
(a.k.a. Vic-20 Synthesizer)

Vol 2 No 12 (Dec 1982),
Page 103.
Kevin Boyd Unexpanded vic synth.prg
Screenshot
Turn the computer into a music keyboard with a 99-note memory.
Controls:
Enter the voice (1-4) and note duration (0.001-1). Play music using the letter keys, except for N & O (insert pauses). Press F1 for playback.
Vic Stick

Vol 2 No 12 (Dec 1982),
Page 106.
Andrew Tuck Unexpanded vic stick.prg
Screenshot
Drawing program. Use the joystick to draw hi-res pictures.
Controls:
Joystick.
Space Runner

Vol 3 No 1 (Jan 1983),
Pages 54-55.
David Browne Unexpanded space runner.prg
Screenshot
Move your ship around the screen avoiding the two pursuing saucers and their mines.
Controls:
Z (left), X (right), F1 (up), F3 (down).
Multi-colour Vic Graphics

Vol 3 No 1 (Jan 1983),
Page 85.
Martin Howse Unexpanded multicol gfx.t64
Screenshot
Two short programs demonstrating how to create hi-res multi-colour graphics.
Controls:
None.
Sounds Familiar

Vol 3 No 1 (Jan 1983),
Pages 109-110.
David Rees Unexpanded sounds familiar.t64
Screenshot
Machine-code routine to create an envelope effect, with some demonstration programs.
Controls:
None.
Quick Copy
(a.k.a. Vic Screen Dump)

Vol 3 No 1 (Jan 1983),
Pages 115-117.
Peter Hintjens Unexpanded & printer quick copy.prg
Screenshot
Utility, make screen printouts.
Controls:
Follow on-screen prompts.
Minotaur

Vol 3 No 2 (Feb 1983),
Pages 64-65.
Roger Miah 3K expansion minotaur 3k.prg
Screenshot
Cross a randomly-generated maze to reach the exit in the bottom-right corner in the shortest possible time.
Controls:
B (left), N (right), H (up), Space (down).
Four Routines

Vol 3 No 2 (Feb 1983),
Pages 120-121.
David Graham Unexpanded four routines.prg
Screenshot
Utility, short program demonstrating four machine code routines that perform various screen effects.
Controls:
None.
Change Goals
(a.k.a. Pinball Wizard)

Vol 3 No 2 (Feb 1983),
Pages 123-124.
George Thordian Unexpanded pinball wizard.prg
Screenshot
Bat-and-ball game. Use your bat to protect the crosses from being hit by the green ball.
Controls:
Crsr Up (up), Crsr Down (down).
3D Maze

Vol 3 No 2 (Feb 1983),
Pages 125-127.
P J Heslop Unexpanded 3d maze.prg
Screenshot
Maze game. Try to escape from the 3D maze.
Controls:
4 (turn left), 6 (turn right), 8 (move forward).
Play That Boogie
(a.k.a. The Vic Boogie)

Vol 3 No 3 (Mar 1983),
Pages 81-82.
Adam Macielinski Unexpanded play boogie.t64
Screenshot
Two programs that play polyphonic music with an animated display.
Controls:
None.
Tank Killer
(a.k.a. Bomb Run)

Vol 3 No 3 (Mar 1983),
Pages 123-124.
Peter Wales Unexpanded bomb run.prg
Screenshot
Use your plane to drop bombs on the tank, but avoid its missiles.
Controls:
W (up), Z (down), P (fire).
Decimal Liner

Vol 3 No 3 (Mar 1983),
Page 137.
K W Hall Unexpanded decimal liner.prg
Screenshot
Small subroutine to align numbers on the decimal point.
Controls:
Store your number in 'X', GOSUB8000, and the result is in 'X$'.
Snake

Vol 3 No 4 (Apr 1983),
Pages 60-61.
Andrew Dilley Unexpanded snake byte.prg
Screenshot
Snake game. Eat the flies and beetles but avoid the deadly mushrooms.
Controls:
< (left), > (right), S (up), X (down).
Option

Vol 3 No 4 (Apr 1983),
Page 137.
Peter Lewis Unexpanded option.prg
Screenshot
Utility. Control the computer volume using the function keys.
Controls:
SYS673 to activate, F1 (sound off), F3 (sound on).
On The Grid

Vol 3 No 4 (Apr 1983),
Pages 138-141.
Stephen Vine 8K expansion, printer on the grid 8k.prg
Screenshot
Create wordsearch puzzles with a printer.
Controls:
Follow on-screen prompts.
Frogrun

Vol 3 No 5 (May 1983),
Pages 62-63.
Desmond Phillips Unexpanded frogrun.prg
Screenshot
Frogger-style game. Dodge the cars and leap on the logs to guide your frog safely home.
Controls:
H (left), J (right), U (up), N (down).
Voices of the Vic

Vol 3 No 5 (May 1983),
Pages 107-111.
John Ransley Unexpanded voices of vic.t64
Screenshot
Nine programs demonstrating how to make sounds & music.
Controls:
See the magazine for details.
Sub Hunt

Vol 3 No 5 (May 1983),
Pages 165-167.
Jason Bumford Unexpanded sub hunt.prg
Screenshot
Sink as many enemy submarines as you can in two minutes.
Controls:
Z (left), C (right), , (fire left), . (fire right), / (abort bomb).
Throttle Control

Vol 3 No 6 (Jun 1983),
Page 44.
Martin Dunn Unexpanded throttle ctrl.t64
Screenshot
Programming demo. Two subroutines showing how to speed up or slow down the computer.
Controls:
See the magazine for details.
Scram-20

Vol 3 No 6 (Jun 1983),
Pages 66-69.
Vol 3 No 7 (Jul 1983),
Page 40.
Nalim Sharma Unexpanded scram20.prg
Screenshot
Scramble game, written in machine code. Battle through five levels to destroy the enemy base.
Controls:
Joystick or F1 (start game), D (up), V (down), F (thrust), : (drop bomb), ; (fire laser).
Astrogladiator

Vol 3 No 6 (Jun 1983),
Pages 167-168.
P Edmond Unexpanded astrogladiator.prg
Screenshot
Asteroids-style game. Shoot as many alien gladiators as you can in two minutes.
Controls:
< (turn left), > (turn right), ? (fire), Shift/Commodore (thrust).
Life

Vol 3 No 6 (Jun 1983),
Pages 181-183.
Andrew Dilley Unexpanded life.prg
Screenshot
Fast-moving version of John Conway's Game of Life, where each cell either thrives or dies depending on the number of neighbours it has.
Controls:
Follow on-screen prompts.
Ladders

Vol 3 No 7 (Jul 1983),
Pages 98-99.
Martin Lightfoot 8K expansion ladders 8k.t64
Screenshot
Platform game. Collect all the blocks from each level, and avoid the barrels.
Controls:
P (up), . {down), L (left), ; (right), Shift (jump).
Multiple Screens

Vol 3 No 7 (Jul 1983),
Pages 114-119.
Alan Westwood Unexpanded multiple screens.t64
Screenshot
Programming demo showing how to use multiple screens. There are three programs: Flip Screen IRQ creates two screens, you can swap between them by pressing F1 and F3. Expanded Screen makes the screen much larger than normal. Multi Scrn Demo shows three animated screens 'The Armchair Exerciser'.
Controls:
None.
Race-Track

Vol 3 No 7 (Jul 1983),
Pages 157-161.
P Nangle Unexpanded race-track.prg
Screenshot
Car racing game. Complete as many laps as possible in three minutes. If you crash then debris is left on the track, which you must also avoid.
Controls:
L (up), , {down), A (left), S (right).
Editor of Character

Vol 3 No 7 (Jul 1983),
Pages 175-177.
Paul Volkaerts Unexpanded super chars.prg
Screenshot
Charactor editor, design your own hi-res graphics. Define up to 60 graphic characters.
Controls:
Cursor keys (move), + (set pixel), - (clear pixel), F1 (menu).
Time at the Top

Vol 3 No 7 (Jul 1983),
Page 179.
P Brett Unexpanded time at the top.prg
Screenshot
Displays a clock at the top of the screen.
Controls:
Follow on-screen prompts.
Vic-20 Monitor
(a.k.a. Vicmon)

Vol 3 No 8 (Aug 1983),
Pages 85-87.
Alan Westwood 8K expansion vicmon 8k.prg
Screenshot
Monitor to help write machine code programs. Note: This program only works if it is loaded using ",8" not ",8,1".
Controls:
See magazine for details.
Flying Saucer Attack
(a.k.a. City Crusher)

Vol 3 No 8 (Aug 1983),
Pages 94-99.
Martin Donaghy & Damian McComb Unexpanded city crusher.t64
Screenshot
Blitz-style game. Drop bombs from your saucer to flatten all the buildings, so you can land safely.
Controls:
Any key (drop bomb), Left Arrow (pause).
Goldgrabber
(a.k.a. Quest 26)

Vol 3 No 8 (Aug 1983),
Pages 159-161.
Michael Taylor Unexpanded quest26.prg
Screenshot
Text adventure. Search through the labyrinth and kill the monsters to collect as much gold as you can.
Controls:
N,S,W,E (move), R (status/retreat), A (attack), M (cast magic spell), Q (leave maze).
Keyword Define
(a.k.a. Defined Function Keys)

Vol 3 No 8 (Aug 1983),
Page 170.
John Bradshaw Unexpanded def func keys.prg
Screenshot
Utility, assigns various functions & commands to the function keys.
Controls:
F1 (screen colour normal), F3 (screen colour black), F5 (quote mode on), F7 (quote mode off), Shift F1 (PRINT), Shift F3 (POKE), Shift F5 (PEEK), Shift F7 (THEN), CBM F1 (FOR), CBM F3 (NEXT), CBM F5 (GOTO), CBM F7 (GOSUB).
Write Your Own Adventures
(Crown of Atlantis)

Vol 3 No 9 (Sep 1983),
Pages 63-72.
John Ransley Unexpanded crown atlantis.prg
Screenshot
Text adventure. Explore the seabed to find the famed Spire of Antantis, while avoiding mines and other deadly obstacles. Some items are given a random location at the start of the game.
Controls:
Follow on-screen prompts.
Golf

Vol 3 No 9 (Sep 1983),
Pages 90-93.
Ray & Stephen Nolan 8K expansion golf 8k.prg
Screenshot
Golf game. Try to complete a 18-hole course with the fewest strokes.
Controls:
Select a club for each stroke. 1-4 (woods, 200-280 yards), 11-16 (irons, 100-200 yards), 17-19 (irons, 0-100 yards).
The Vic Open

Vol 3 No 9 (Sep 1983),
Pages 90-93.
Vikki Allsopp Unexpanded vic open.t64
Screenshot
Golf game. Try to complete a 9-hole course with the fewest strokes.
Controls:
Move the player to the ball using A,Z,N,M, press T, then select a club (1-9). Club 9 is a putter that moves the ball one square.
Vic-20 Graphics

Vol 3 No 9 (Sep 1983),
Pages 113-114.
Adam Burbridge 8K expansion hires gfx 8k.t64
Screenshot
Programming demo. Use POKE and SYS commands to draw hi-res graphics with 8K expansion. The first part is a memory config program that resets the computer. Once this has run, manually load & run the next part.
Controls:
See magazine for details.
Tron II

Vol 3 No 9 (Sep 1983),
Page 159.
H Singh Unexpanded tron ii.t64
Screenshot
Tron style game for two players. Each light cycle leaves a deadly trail behind it. Try to trap the other player without getting trapped yourself.
Controls:
Player 1 (blue trail): CBM (turn left), Shift (turn right).
Player 2 (red trail): Crsr-Down (turn left), Crsr-Right (turn right).
Gridmania

Vol 3 No 10 (Oct 1983),
Pages 105-107.
Damian McComb Unexpanded gridmania.t64
Screenshot
Traxx-style game, written in machine code. Paint all the lines on the grid black, while avoiding the aliens. Don't return to the home base until the grid is finished, or you'll lose a life.
Controls:
Joystick or A-H (left), J-= (right), Q-P (up), Z-/ (down), Left Arrow (pause).
The Night Forest

Vol 3 No 10 (Oct 1983),
Pages 150-151.
John Ransley 3K expansion night forest 3k.prg
Screenshot
Text adventure, where you respond to fixed choices instead of typing commands. After your cars breaks down, can you find a safe route through the forest?
Controls:
Follow on-screen prompts.
Vic Expansion
(a.k.a. Vic Extended Basic)

Vol 3 No 10 (Oct 1983),
Pages 157-158.
Vol 3 No 11 (Nov 1983),
Pages 171-175.
Vol 3 No 12 (Dec 1983),
Pages 197-200.
Damian McComb 3K expansion extendbasic 3k.d64
Screenshot
Extended Basic, adds several new commands. Load & run all three programs in order, then type "LOMEM2830:DOKE2829,0:NEW".
Controls:
See magazine for details.
Alien Flashers

Vol 3 No 10 (Oct 1983),
Page 186.
Campbell Wilson Unexpanded alien flashers.prg
Screenshot
Galaxians-style game. Shoot the alien hordes before they overrun your base.
Controls:
< (left), > (right), Space (fire).
Self-writing
(a.k.a. Auto Data Program)

Vol 3 No 10 (Oct 1983),
Page 203.
Jeremy H Lee Unexpanded auto data prog.prg
Screenshot
Programming utility, convert an area of memory into DATA statements for use in Basic programs.
Controls:
Follow on-screen prompts.
Double-height

Vol 3 No 10 (Oct 1983),
Page 205.
Martin Donaghy Unexpanded double-height.prg
Screenshot
Utility, displays double-height characters on the screen.
Controls:
None.
Sky Hop
(a.k.a. Jump Bug)

Vol 3 No 11 (Nov 1983),
Pages 108-109.
Nicholas Sharp 3K expansion jump bug 3k.t64
Screenshot
Collect the money bags, diamonds and other rewards by jumping onto them with your car. Avoid the buildings, bombs and monsters.
Controls:
Joystick or A (left), D (right), W (up), X (down), S (fire).
Night Train

Vol 3 No 11 (Nov 1983),
Pages 205-207.
A M Dyer Unexpanded night train.prg
Screenshot
Drive the passenger-carrying night train to a coastal town 15 miles away, with eight stations between. The express train only has two stops en route, while the local train may need to stop at every station. You must obey the coloured signals, speed restrictions, take gradients into account, signal the horn when required, and wait for the guard's permission to leave.
Controls:
F1 (increase power), F3 (reduce power), F5 (increase braking), F7 (reduce braking), Space (sound horn).
Auto Line Numbering

Vol 3 No 11 (Nov 1983),
Page 227.
Gerard Daly Unexpanded auto line num.prg
Screenshot
Programming utility, automatically displays line numbers to help when entering programs. A modified version was published as Auto Number (84-04), which works with any memory expansion.
Controls:
SYS7500 (begin routine), SYS4096 (stop routine), SYS7514 (resume routine). Press space at the start of a new line, and the next line number will be automatically displayed. Line numbers start at 10 and increase in 10s.
SAS Assault

Vol 3 No 12 (Dec 1983),
Pages 186-187.
P Brabbins Unexpanded assault.t64
Screenshot
Siege-type game. Throw rocks at the men before they climb to the top of the castle wall.
Controls:
Joystick or Z (left), C (right), F1 (drop rock).
Dodgems

Vol 3 No 12 (Dec 1983),
Page 212.
Olaf Morris Unexpanded dodgems.prg
Screenshot
Dodgems game. Drive around the maze collecting all the dots, but don't crash into the computer car.
Controls:
W (up), X (down), A (left), D (right).
Stringdump

Vol 3 No 12 (Dec 1983),
Page 231.
G Jones Unexpanded stringdump.prg
Screenshot
Programming tool to list the name and contents of all string variables.
Controls:
SYS7424 (run program).
Vicman

Vol 4 No 1 (Jan 1984),
Pages 94-97.
Hermann Hirsch 8K expansion vicman 8k.prg
Screenshot
Pac Man-style game. Navigate the maze eating all the biscuits while avoiding the monsters.
Controls:
Joystick.
Pin Ball

Vol 4 No 1 (Jan 1984),
Page 180.
Andy Duffin Unexpanded pin ball.t64
Screenshot
Cross between Breakout and Pin Ball. Move your bat to keep the ball on the screen, and hit objects to score points.
Controls:
Z (left), C (right).
Line Delete

Vol 4 No 1 (Jan 1984),
Page 201.
Richard Morton Unexpanded line delete.prg
Screenshot
Programming utility with two functions. Auto Number will automatically print line numbers on the screen with a desired starting line & interval, so that you do not need to type the line numbers manually when entering a program. Delete will delete all lines between two specified line numbers (including those line numbers).
Controls:
Append this subroutine to your program, run it by typing RUN63000, then follow on-screen prompts.
Parallel Printer Interface

Vol 4 No 2 (Feb 1984),
Pages 161-165.
Chris Thorpe Unexpanded centronics.prg
Screenshot
Use a Centronics interface printer with your computer, for use with the interface cable described in the article. When the routine is enabled, anything sent to the screen is also sent to the printer until the routine is disabled or RunStop & Restore are pressed.
Controls:
Follow on-screen prompts.
Fly Catcher

Vol 4 No 2 (Feb 1984),
Pages 191-193.
Colin Peacock Unexpanded fly catcher.prg
Screenshot
You are a spider, and you must build a web to stop the fly reaching the left side of the screen.
Controls:
Joystick or 2 (up), 1 (down), 9 (left), 0 (right).
Football

Vol 4 No 3 (Mar 1984),
Pages 179-180.
Dirk Lampe Unexpanded football.prg
Screenshot
Pong-style football game for 1 or 2 players. A ball bounces around on the screen. Use your bat to protect your own goal, and try to get the ball in your opponent's goal.
Controls:
Player 1: Joystick or A (up), Z (down).
Player 2: F1 (up), F3 (down).
Catalog

Vol 4 No 3 (Mar 1984),
Pages 185-187.
M J Curtis Unexpanded catalog.prg
Screenshot
Database utility, keep track of the filename & counter position of every program saved on a tape.
Controls:
Save this program at the beginning of your tape, and follow on-screen prompts.
Auto Number

Vol 4 No 4 (Apr 1984),
Page 187.
Clifford Miller Unexpanded auto number.prg
Screenshot
Programming utility, automatically displays line numbers to help when entering programs. This is a modified version of Auto Line Numbering (83-11) that works with any memory expansion.
Controls:
Press space at the start of a new line, and the next line number will be automatically displayed. Line numbers start at 10 and increase in 10s.
Laser

Vol 4 No 5 (May 1984),
Page 163.
Philip Campbell Unexpanded laser.prg
Screenshot
Plays a short sound effect of a laser firing, to demonstrate rapidly switching the sound registers on and off.
Controls:
None.
Moon Land

Vol 4 No 5 (May 1984),
Page 171-172.
P Ingram Unexpanded moon lander.prg
Screenshot
Your ship is descending towards the moon's surface. Try to land on one of the red bases.
Controls:
Z (left), C (right), Space (emergency thrusters).
Back-up

Vol 4 No 5 (May 1984),
Pages 177-179.
John Chippendale Unexpanded back-up.prg
Screenshot
Make a cassette back-up of most BASIC and machine code programs.
Controls:
Insert the tape to be copies and press play. When the sound is heard, insert a blank tape and press record & hit the Return key. The sound will stop and the program will be saved.
The Guardian

Vol 4 No 6 (Jun 1984),
Pages 117-118.
Dirk Lampe 8K expansion the guardian 8k.prg
Screenshot
Explore an abandoned house to collect treasure, while avoiding the Guardian and his servants.
Controls:
L (turn left), : (turn around), ; (turn right), 1 (walk forward), Left Arrow (stab), U (use), I (inventory), O (open), P (put), G (grab), S (shoot), D (drink).
Things to do With Your VIC

Vol 4 No 6 (Jun 1984),
Pages 139-140.
See also:
Vol 4 No 7 (Jul 1984),
Pages 32-33.
Andrew Bacon Unexpanded/Super Expander+3K things to do.t64
Screenshot
Programming tutorial. Seven programs that demonstrate various techniques. The Super Expander programs draw hi-res pictures. Upside Down inverts the screen font. Joy draw is a hi-res art program controlled with the joystick. Auto Bleep makes a beep after every keypress.
Controls:
None.
Light Cycles

Vol 4 No 6 (Jun 1984),
Pages 180-183.
Paul Burke Unexpanded light cycles.t64
Screenshot
Tron-style game. You must trap the three enemy cycles without getting trapped yourself. Touching the trail left behind any cycle is fatal.
Controls:
T (up), V (down), F (left), H (right).
Jet Man

Vol 4 No 7 (Jul 1984),
Pages 82-83.
Vol 4 No 9 (Sep 1984),
Pages 32-33.
David Hodgetts Unexpanded jet man.t64
Screenshot
Guide Jet Man to the switch at the top of the screen by navigating through the moving holes in the platforms. The Whizzers are harmless when you are standing still, and deadly if they touch you while you are moving.
Controls:
Joystick.
3D Effect

Vol 4 No 7 (Jul 1984),
Page 151.
Chris Cattanach 16K expansion 3d effect 16k.t64
Screenshot
Displays a 3D rotating cube.
Controls:
F1 (speed up), F2 (slow down).
Robot Attack

Vol 4 No 9 (Sep 1984),
Pages 96-97.
David Hodgetts Unexpanded robot attack.t64
Screenshot
Space Invaders-style game. Shoot the robots that travel diagonally down the screen, and avoid the indestructible pods.
Controls:
Joystick.
Vic Elevators

Vol 4 No 11 (Nov 1984),
Pages 93-95.
H Kaljouw Unexpanded vic elevators.t64
Screenshot
Platform game. Try to reach the top of the building without touching any of the elevators. There is a time limit to cross each floor. When the man starts walking he cannot be stopped, so you have to change direction to dodge the elevators.
Controls:
< (left), > (right).
Toads

Vol 4 No 12 (Dec 1984),
Pages 128-131.
Graham Lynas 16K expansion toad 16k.t64
Screenshot
Fast-moving platform game, based on Frogger. Move your toad up the lift, over the platforms and ladders, and jump across the logs to reach the top of the screen.
Controls:
W (up), X (down), A (left), D (right).
Graveyard-20

Vol 4 No 12 (Dec 1984),
Page 189.
R W Silversides Unexpanded graveyard-20.prg
Screenshot
Gridtrap-style game. Collect all the keys in the graveyard. Avoid the ghosts and skulls, and do not cross your path. If it displays an error when starting a new game, press Run/Stop+Restore and then RUN the program again.
Controls:
Y (up), B (down), G (left), H (right), Space (restore row, if you have more than 200 points).
New Commands
(a.k.a. Vic Basic Extension)

Vol 4 No 12 (Dec 1984),
Page 197.
B D Parsons 8K expansion basic ext 8k.prg
Screenshot
Basic extension. Adds five new commands that can only be used within programs, not in direct mode.
Controls:
See magazine for details. New commands: @PLOT, @COLOUR, @DOKE, @SOUND, @VOLUME.
Death Trap

Vol 5 No 1 (Jan 1985),
Pages 93-94.
Richard Hamer 16K expansion
Before loading type:
POKE642,32:SYS64824
deathtrap20 16k.prg
Screenshot
Gridtrap-style game. Get to the bomb before it explodes, collecting flags for bonus points. Avoid the skulls and block hopper. You can only step on each square once, and cannot cross blank spaces. Bonus screen after defusing five bombs.
Controls:
I (up), J (down), D (left), F (right), F1 (pause), F5 (teleport), F8 (abort).
Zip Load
(a.k.a. Vic Turbo)

Vol 5 No 1 (Jan 1985),
Pages 151-152.
John Twiddy 16K expansion vic turbo 16k.prg
Screenshot
Turbo tape, load and save programs about seven times faster.
Controls:
See magazine for details. When asked to enter a start address for the program, 23552 is recommended on 16K machines.
Sprinter

Vol 5 No 1 (Jan 1985),
Pages 165-166.
Nicholas Giacoumatos 3K expansion sprinter 3k.t64
Screenshot
Try to complete the 100m qualifying race & main race in the shortest possible time, by balancing your power output and energy levels. If you run too fast you will collapse from exhaustion.
Controls:
UpArrow (increase power), any other key (reduce power).
MC Mover

Vol 5 No 1 (Jan 1985),
Pages 173-174.
P J Mew Unexpanded mc mover.prg
Screenshot
Programming utility, helps you to relocate machine code routines by recalculating the JSR, JMP and absolute addresses.
Controls:
Follow on-screen prompts.
Lander

Vol 5 No 2 (Feb 1985),
Pages 132-133.
David Hodgetts Unexpanded lander.t64
Screenshot
Guide your landing craft through the asteroid belt and land it safely on the pad.
Controls:
Joystick.
Utilities

Vol 5 No 3 (Mar 1985),
Page 128.
T S Wharton Unexpanded utilities.t64
Screenshot
Three machine code utilities. Cassette Motor Switch activates the tape motor so that you can rewind of fast forward tapes while using the keyboard. Random Character Colour changes the cursor to a random colour, but not the screen colour. Clear Screen clears part of the screen while leaving the rest intact.
Controls:
Cassette Motor Switch: Run the routine with SYS673. F1 (motor on), F3 (motor off).
Random Character Colour: SYS673 (select a random colour).
Clear Screen: SYS673 (clear top half of screen, use POKE674,X to clear X+1 lines), SYS678 (clear bottom half of screen, use POKE685,X to change this), SYS691 (clear left side of screen, use POKE694,X to select number of columns), SYS704 (clear right side of scree, use POKE724,X to select number of columns).
Compactor

Vol 5 No 4 (Apr 1985),
Page 108-109.
P J Mew 16K expansion compactor 16k.t64
Screenshot
Programming utility. Three programs to reduce the size of your BASIC programs. Compactor 1 removes spaces, Compactor 2 removes REM statements, and Compactor 3 compresses programs by joining lines together. Includes a demo program that can be used to try out each routine.
Controls:
Compactor 1: run with SYS24390
Compactor 2: run with SYS24050
Compactor 3: run with SYS23630
Autodata 2

Vol 5 No 4 (Apr 1985),
Page 138.
A S Burbidge Unexpanded autodata2.prg
Screenshot
Programming utility, converts a block of memory into DATA statements. Note: The instructions do not explain how to set the start address, end address, items per line etc.
Controls:
Run the program, then type SYS7408. Start typing the first part of the line e.g. "100 DATA" and then press F1, and it will autotype the numbers.
Self-Modify

Vol 5 No 5 (May 1985),
Page 29.
P Whilby Unexpanded self-modify.prg
Screenshot
Programming demo. A self-modifying routine that makes lines invisible when the program is listed.
Controls:
None.
Tank Battle

Vol 5 No 5 (May 1985),
Page 71.
Serge Simon Unexpanded tank battle.t64
Screenshot
Two-player tank game. Destroy the other player's tank to score as many points as possible in 1 min 50 secs.
Controls:
Player 1: Ctrl (forward), Shift (turn), Commodore (fire).
Player 2: F5 (forward), F7 (turn), F3 (fire).
Utility
(a.k.a. VIC Utilities)

Vol 5 No 6 (Jun 1985),
Page 122.
M J Davies Unexpanded vic utilities.prg
Screenshot
Machine code utility that provides some useful keyboard shortcuts.
Controls:
Ctrl+B (key beep on), Ctrl+V (key beep off), Ctrl+K (key repeat on), Ctrl+J (key repeat off), Ctrl+Y (quote mode on), Ctrl+T (quote mode off), Ctrl+I (insert mode off), Ctrl+P (pause listing), @ (resume paused listing), Ctrl+S (sound off), Ctrl+X (Run/Stop & Restore).
Teeth Eater

Vol 5 No 7 (Jul 1985),
Pages 111-112.
Paul Kinnaird Unexpanded teeth eater.t64
Screenshot
Use your toothpaste to shoot the bacteria that are attacking your teeth. You have 60 seconds to kill as much bacteria as you can.
Controls:
Z (left), X (right), Space (fire).
Gardener

Vol 5 No 8 (Aug 1985),
Pages 98-99.
R Williams Unexpanded gardener.t64
Screenshot
Catch water from the dripping tap, and water the flowers before they wilt and die.
Controls:
I (up), M (down), J (left), L (right/pour).
Easy Key

Vol 5 No 8 (Aug 1985),
Page 101.
Andrew Breen 8K expansion easy key 8k.prg
Screenshot
Utility. Enter commands with a single keypress, like on the Sinclair Spectrum. Use the Ctrl key to access the shortcuts. Note: The program is described as working on any Vic-20 but I couldn't make it work on an unexpanded machine, it works fine with 8K expansion.
Controls:
Enter a page number to locate the machine code routine, e.g. to store it at location 7680 you'd enter page number 30 (7680 / 256 = 30). Execute the routine with SYS(page*256)+75.
Turboload

Vol 5 No 11 (Nov 1985),
Pages 112-113.
R Grzasko 8K expansion
Before loading type:
POKE 44,32: POKE 8192,0: NEW
turboload 8k.prg
Screenshot
Turbo tape utility. Load & save programs six times faster than normal. Save this as the first program on your cassette. Normal programs will not load while this is running.
Controls:
Follow on-screen prompts.

Notes

  1. The following programs are missing from this magazine: Graph Screen by K G Staller (Nov 1982), Disassembler by Alan Westwood (Jun 1983), Letter Drop by Bryn Phillips (Jan 1984), Vic Rally aka Chequered Flag by Neil Kirk (Feb 1984), Millipods by S Cockeram, D Wakelin & P Tomson (Mar 1984), Vic Cesil by Kevin Lawrence (Mar 1984), Labyrinth by Paul Hadler (Apr 1984), Vic Dogfight by Peter Bartley (May 1984), The Sirus Grid by Andrew Farlow (May 1984), Vic Draw by Arnie Blomberg (Jul 1984), Guess-Who-Man by A J Hodgson (Sep 1984), Track Chase by Adrian Mardlin (Oct 1984), Apple Drop by Philip Balfe (Oct 1984), Utility Programs by Simon Weston (Oct 1984), Swoosh by L W Betteridge (Nov 1984), Vic Gunfight aka Gunmen by James Sullivan (Feb 1985), Extended VIC Basic by David Redmond (Mar 1985), Dominoes by J Ireland (May 1985). If anyone has working copies then please contact me.
  2. High-Resolution Displays (81-10) and Vic Colour Graphics (82-04) were also published in Vic Graphics.
  3. A modified version of Breaking Out (82-04) appears to have been published as Escape (Commodore User, 84-10).
  4. A modified version of Alien Arcade (82-04) appears to have been published as Super Nova (Popular Computing Weekly, 82-08-19), with different graphics.
  5. A modified version of Fighter Raid (82-05) appears to have been published as Raider (VIC Games).
  6. Modified versions of Tunnel Vision (82-06) appear to have been published as Maze (Popular Computing Weekly, 83-09-22), Space Walk (Popular Computing Weekly, 84-02-23) and Pollen (Popular Computing Weekly, 85-01-17).
  7. Vic Dambuster (82-09) was also published as Nibblers (Computer & Video Games, 83-01). Line 0 (a REM statement) has been removed from the C+VG version.
  8. Poly-pen Music (82-10) was also published as Polypen (Popular Computing Weekly, 82-09-02). Only the REM statements differ.
  9. Minotaur (83-02) appears to be a modified version of Minotaur (Computer & Video Games, 82-05).
  10. Snake (83-04) was also published in Pixel (83-10). A modified version of Snake appears to have been published as Hissing Sid (Commodore User, 85-07).
  11. Frogrun (83-05) uses the same graphics as Street Alley (Popular Computing Weekly, 82-08-12). A modified version of Frogrun appears to have been published as Hoppa (Commodore User, 85-01GE), with different graphics.
  12. Scram-20 (83-06) was republished commercially by Artic Software.
  13. Laser (84-05) was originally published in Delving Deeper Into Your Vic-20 by Philip Campbell.

With thanks to DLH's Commodore Archive and Internet Archive for scanning this magazine.

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