Sinclair ZX80 / ZX81 / Z88 Forums

Timex also published a catalog of their software, which may be available. I think I have a digital copy somewhere, but I don't know if it is a complete list.

Regards;

Greg

Demo video...

https://www.youtube.com/watch?v=3v7Zz0wYr8M

Quilts Hardware: ZX81+16K+8K Static RAM at 8192, uses WRX video mode. Emulator: sx81+16K This is a rather slow program so I've increased CPU speed to 400%. This program builds "quilts" from various patches. See the "Patches Folder" for patch descriptions. For the purist I've also included a PSI Res ...

LANGTON'S ANT. Hardware: ZX81+ZXPand+UDG4ZXPand in CHR$128 mode * ZX81+ZXPand+Chroma in CHR$128 mode ZX81+ZXPand+UDG Board in CHR$128 mode Emulator: sz81 in ZXPand+CHR$128 mode EightyOne in ZXPand+CHR$128 mode ------------------------------------------------------------------------------- From Wikip...

AntiAir...

http://inufuto.web.fc2.com/8bit/antiair/#zx81

This is a fast "Shoot'em Up" by S.P. Kelly originally published by Micro-Gen, 198?. Despite the name this is NOT a ZX81 version of the arcade classic. There's already a Chroma color version of this, posted elsewhere, so I thought I'd also do a CHR$128 conversion as well. This is actually a pretty in...

Here's another fun little game. Originally published by Timex as part of the "Mixed Game Bag III" collection, 1982. Programmed by Micheal Orwin. My mods... I've increased the play area to the full 24 line display. Changed control keys to Q-A-O-P instead of 5-6-7-8. Sped up the game with a couple MC ...

This is a frantic little game! The original is only around 900 bytes, 512 bytes for the MC and the rest is for the BASIC loader. The program is interesting in that multiple key presses are permitted, so you can move and fire at the same time, you'll need to do this. There doesn't seem to be an ammo ...

Implementing multistatement lines is actually fairly simple, in MC. It's just a matter of keeping track of the chr addresses in the line. The program "SHREB" from 1986 uses multistatement lines. Since you have a ZXPand you maybe interested in these programs... https://www.sinclairzxworld.com/viewtop...

I recall, along time ago, that I had a similar problem and replacing the voltage regulator fixed the problem. I got this idea from a forum posting but I can't find it. Not being a hardware guy I have no idea why the voltage regulator would garble the display, but replacing it worked for me. Regards ...