ZX81/Timex Programming in BASIC & Machine Language
Takes up where your ZX/TS manual leaves off; the book assumes you know the basics of ZX/TS hardware and software.
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Timex/Sinclair 1000
MC Inkey$ Subroutine
Machine code routine returns the CODE value of the key pressed to your BASIC program.
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SQ-UP
In David Ornstein’s premier issue article (SQ Winter 82 p. 29) Using Extra Keys on Big Keyboard, add a symbol A atop the D1 lead toward the right-hand edge of the page.
Timex Shows T-Dock and Cartridge Adaptor
Cartridge software for TS1000/1500 owners will be available by using a $19.95 T-Dock to feed buss signals through and connect the ROM plug-in—which uses chip-on-board technology.
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Addressing: A Brief Tutorial
If you find ROM, RAM & PORT addressing and decoding confusing, here’s some explanation of what’s what.
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ZX PRO/FILE
ZX PRO/FILE uses one of the most sophisticated and efficient data storage and retrieval systems I ever expect to see for the ZX/TS.