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tune. I'm tempted now to try the system in real life. When the 'wheel' is spun in this program, I think it would be good for the squares on the board to flash or something, rather than just overprint a series of random numbers below the board. PONTOON: Ho hum, you might think. But you'd be wrong. This program — which features an excellent display of the cards — shows just how much can be ODDS A N Y N U M B E R = 3 5 ANY T U O s l ? ANY ROU(3)=11 .q SGR OP «i=S 2 ROUS OF 3 = 5 1ST T U E L U E = 2 S N D T U E L U E = S 3 R D T U E L U E = 2 ANY COLUMN =2 O D D OR E U E N = 1 ROULETTE TO TO T O TO TO TO T O T O TO TO BLACK • U M XT E-1 TO MRNOUE ( 1-1S) =1 TO PfiSSE ( 1 9 - 3 6 ) =1 T O YOU HAUE GOT £ 1 0 0 © done using good graphics when you have 16K to play with. PENNY SHOOT: In this program, you make a robot shoot at pennies which are raining down from the sky. The introduction to the program was a nice touch, more fascinating than the game itself. A little figure appears to read the instructions as they appear, then turns and shoots a sample pen- 1 1 1 1 1 1 1 1 1 M N O WANT BETT ING I N S T R U C T TONS'? F.Y ,' N I JU STUCK RT 13 THE BPWK HAS. YOUR CREDIT I3:£1000 YOUR STAHC 15: £ 1 & & ~ UILL STICK WITH 13 I HAUE UON £l(3tf XX XX XXXX XX XX x x x x XX XX x x x x XXX X x x x x x x x x XX XX x x x x x x x x S-SHOU NOPOR'5TL* f POOO b o c b o o b o o b o o p o o p o o boo p o d o o o o o o pot poi p o o 3 wxvz s o f t w a r e S E E UELL DONE .THAT URS RRTHER QUICK. ANOTHER GRME? URITE DOWN YOUR MDUE5 FOR T H I i 3 1 II S S 0 a a a I 1 3 AY LOT a i 3 3 3 S B m E 2 1 3 3 I l I ^ S l L E S 6 SCORE £ 3 1 MAX. ny. This program is not particularly challenging. GUN COMMAND: This is another moving action game where you try to intercept missiles traversing the screen. It's OK, but like PENNY SHOOT could be a bit more challenging. Overall, for the £5 this program costs, ft represents good value for money, with the good programs outweighing the weaker ones. However, I feel that a few of the lower standard games were added more to make up the numbers than be really good additions to the package. The programs alt show how well the somewhat limited graphics of the ZX81 can be made to perform, although they also indicate that there is a temptation to 'dress up' fairly shallow programs in fancy clothes to disguise them. Despite all these comments, it represents a good selection of games. You're sure to find one or two favourites which you'll play over and over again. Cassette Two is £5 from Michael Orwin. 106 ZX COMPUTING SUMMER 1982
ZX81 Software LARGE CHARACTERS REM STATEMENT IN HEX 21 7C 4© CD 91 4© 41 CD 91 4© ED 43 7S 4© G9 ©E FF ED 6F CB 47 2© ©4 CB 81 CB 89 CB 4F 2© ©4 CB 91 CB 99 CB 57 2© ©4. CB R1 CB R9 CB 5F 2© ©4 CB B 1 CB B9 C9 U : : O EE Q t-I R R R
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j Summer Britain's Biggest Magazine
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ZX 80/81 HARDWARE/SOFTWARE ZX KEYBO
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ZX Computing is published quarterly
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16K-byte RAM pock for massive add-o
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The @*?$1!&£@ RAM pack Dear ZX Com
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I u < o •0 8 & £T © Benchmarks
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1 1© L" 20 30 IN5 5 0 60 80 9C 100
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The Explorer's Guide to the ZX81 IF
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Orbit S M King from Bristol takes y
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ID 15 20 25 30 35 4G> LBV 5 NMER RE
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I first became aware of the bug in
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A. Beasley After using the ZX80 for
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I sr The first few weeks after the
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Page 57 and 58: Winning Positions COIN COIN BELL BE
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Page 61 and 62: lTURES P&P) ITAL iGUE write to IGHT
Page 63 and 64: ms, arid I time you convince somebo
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Page 67 and 68: *t»m Tarshis, Executive Vice Presi
Page 69 and 70: and 2.5 volts. This will produce a
Page 71 and 72: tng of KE, the the his mg ay. cts i
Page 73 and 74: Review Keyboard Review Crofton's Ad
Page 75 and 76: "The hi-res board seems to go to a
Page 77 and 78: Make the most of IK Chopper Squad R
Page 79 and 80: onic Systems 80/1 ^ / RAMPACK MASSI
Page 81 and 82: 51 IF A(2) «* 188 THEN LET A (Z)
Page 83 and 84: 4110 IF (A(Z - 13) = 1 OR A(2 - 13)
Page 85 and 86: ZX81 HARDWARE 40 KEY KEYBOARD. Kit
Page 87 and 88: 4090 GOTO 9100 5000 GOSUB 9500 5010
Page 89 and 90: I 1K Games 10 LET 20 LET 30 LET 4-0
Page 91 and 92: Etchasketch This very short program
Page 93 and 94: meant the addition to its repertoir
Page 95 and 96: SYSTEM/MULTIFUNCTION COMMANDS BREAK
Page 97 and 98: 270 280 290 300 310 320 IF IF IF IF
Page 99 and 100: Make sure you get every issue of ZX
Page 101 and 102: ZX80 Programs ZX80 fights back Musi
Page 103 and 104: Catch Avoid being trapped by your s
Page 105: Software Orwin strikes again Casset
Page 109 and 110: Moving graphics Getting into the Mo
Page 111 and 112: Specialist Book§ i Choosing progra
Page 113 and 114: OZJIJL I* » JTA. _ A."--." * rt k
Page 115 and 116: the new address (in decimal) follow
Page 117 and 118: WHAT CAN I DO WITH 1K? If your answ
Page 119 and 120: Compiler A program whose function i
Page 121 and 122: ZX COMPUTING SUMMER 1982 Computer G
Page 123 and 124: S-100 Name of a bus or connection s
Page 125 and 126: After taking your move the computer
Page 127 and 128: WHAT'S ON NEXT? IN HOBBY ELECTRONIC
Page 129 and 130: are not lost when the ZX81 is turne
Page 131 and 132: ZX Users' Club JOIN YOUR USERS' GRO
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