ZX81-LARKEN Tip
Note from a user about fix to disk copy program.
Timex/Sinclair 1000
ZX81 LARKEN Drive Select
Listing selects either drive 1 or 2 from any place in RAM.
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Bob’s Notebook: Organizing Tapes and Programs
Suggestions for organizing a tape library.
Bob’s Notebook: Organizing Tapes and Programs Read More »
ZX Programming
Reprint of article from ZX Computing Monthly. Article includes several utilities for loading machine code into REM statements.
Techniques for Calling USR Routines
Describes how each of the technique for calling USR routines work.
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Graphics For Your ZX-81
Collection of routines to support drawing pictures, displaying pictures sequentially and saving/loading to tape.
Graphics For Your ZX-81 Read More »
ZX81 ROM Adapter 2764 EPROM to Replace Sinclair ROM
Schematic to connect an EPROM in place of the ROM.
ZX81 ROM Adapter 2764 EPROM to Replace Sinclair ROM Read More »
ZX81 Resources
Update on ZX81 disk drives, Dungeons of Ymir, correction to program in prior article.
Circle Games
Type-in program for JOBASIC or other high resolution routine to draw patterns with circles.
Store BASIC on EPROM with an EPROM Programmer
Construction article for an EPROM programmer for the ZX81/TS 1000.
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