Timex/Sinclair 1000
ZX-81/TS1000 Tips
Using the CODE function instead of numbers to save bytes; saving space with DIMensioned variables.
News for this year
Macintosh and NeXT emulators being readied. Author working on several self-published books about ZX81/TS 1000 computers. Local group developing simple compiler.
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Useful Sinclair Programmer Notes (On Telephone Nos.)
Hints on how to store a telephone number in three bytes (encoded) versus seven bytes.
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Using an audio transformer as cassette load aid
Article appeared in August-December 1989 issue of CRAGIST.
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TS1000’s still available
Gary Young in Iowa has working and non-working units, RAM packs and software.
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Surround
You will probably recognize Surround as soon as you RUN it. It is a version of a fairly standard routine in which you are required to surround your adversary before he can surround you. Both players are in continuous motion and are not allowed to cross their tracks or those of their opponent, or to
Alien Lure
A game which links the bugbaiting type of program with a battle against alien invaders has been produced by Sanath Yogasundrum. When the game begins, the player is asked for a skill level, A or P, which stand for amateur or professional. It is advisable to start on the amateur level while the player begins
Computer Combat!
The first question often asked about a new machine is “Does it play Space Invaders?” Though a 1K machine has considerable difficulty getting anywhere Computer Combat using only 1K, is a type of mini Space Invaders but with only one invader and one base and a much slower rate of firing. The object of the
Who says that graphics have to be complicated?
All you need to start is a simple understanding of the PLOT command, says professor and author Michael K. Barnett in this exclusive interview. Can you tell us some of the computers that you use for computer graphics? These include some very large IBM machines like 370s, 3033s and 3081s, some personal computers like the
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Build your own EPROM blower without blowing a fortune
Because most users of the T/S1000/ZX81 are software orientated, the hardware has been made simple in this design. The software needed to run it consequently will be large and some of it is in machine code. The heart of the design is the 8255 programmable peripheral interface device. This chip has 24 lines of input
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