Sinclair ZX80 / ZX81 / Z88 Forums

Here are two more games I've typed up for the 16K ZX81 from Your Computer magazine: Space Invaders (Chris Mortimer, Your Computer, Jul 1983).zip Dangerman (Mark Carne, Your Computer, Jul 1983).zip Space Invaders is written in machine code and quite good but seems near impossible to destroy a wave of...

Here are two nice machine code games I've typed up for the 1K ZX81 from Your Computer magazine:


I've submitted both to the Type Fantastic website.

Here's an uncommented disassembly of the program, which would be a start should you wish to revisit the code and create a fully commented listing:

so if you feel like going back in time and typing in the HEX code (oh those were the days!) you're very welcome to. I had typed up this program a few years ago for submission to the Type Fantastic website but found the program didn't work when I tested it. The hex byte listing on the second page wa...

Rainbirdrich wrote: ↑Mon May 03, 2021 3:13 pm Without using that setting, the keyboard image behaves itself and nothing happens when I click on it.

Could you try v1.23 and see if that helps.

I am trying to use the .b81 drag and drop method to import an ASCII file in EightyOne and tokenize it; it works indeed, but when I drag and drop it the emulator automatically resets its mode to ZX81 whereas I want to import the file in ZX80 mode. Any idea how to fix this? And is there perhaps some ...

The program "ShowSCR" no longer works in 1.21, it does work in 1.18. The upper third of the image is distorted, maybe something to do with the Spectrum display format. Running on WIN7 64Bit. I've still not been able to reproduce this. What hardware settings do you have? You could try deleting the e...

Just grabbed latest release V1.22, but noticed that each time I click on the keyboard (press F1 to invoke it) the image (and window) for it gets smaller, and then there's no obvious way to get it back to the normal size? if you keep clicking it ends up as a tiny square just big enough for the close...

GCHarder wrote: ↑Mon Apr 26, 2021 11:00 pm The program "ShowSCR" no longer works in 1.21, it does work in 1.18. The upper third of the image is distorted, maybe something to do with the Spectrum display format. Running on WIN7 64Bit.

I've tried in v1.22 and it is working ok for me. Can you include a screenshot of what you are seeing.

I have asked the seller. Hopefully they will get back to me. Was thinking to do the same but don't want to flood them with such queries so will will wait to hear if they respond to you. Looks like they are Sinclair fans? https://www.ebay.co.uk/itm/ZX80-ROM-ADAPTER-Module-with-4-ROM-images-does-not-...