Sinclair ZX80 / ZX81 Forums

The download link for Yerzmyey's Sound Demo appears to be going to one of those stupid domain parking/advertising pages. Can someone post an updated link to sound_demo.zip?

Is slow mode working yet?

Most TVs still support an analog RF signal, and I use use an old black and white TV on VHF with my Timex Sinclair 1000. Anyway, it would be nice for a replacement ULA to be a drop in replacement and not require any other modifications.

I use these settings to play Zedragon on my Mac using SZ81 version 2.3.8. SZ81 also works on Linux. The green highlight shows the default, the inverse shows the current setting. Screen Shot 2018-01-14 at 2.25.57 PM.png Screen Shot 2018-01-14 at 2.31.45 PM.png Screen Shot 2018-01-14 at 2.33.22 PM.png

All these emulator binaries require an Intel Mac. It may be possible to build SZ81 on a PPC machine from source. I don't have a PPC build environment I can access right now.

Not sure what the issue is with the EightyOne package I posted with some users. You might be running into Apple's security. Try running this command on the folder from the command line terminal after unpacking it then try running it again... xattr -d -r com.apple.quarantine Path_to_folder Example: x...

Any chance of making the 3d print design available for those who want to print their own? Pretty please?

I have seen a couple of different ULA replacement projects, but I haven't seen any currently available for sale.

I was looking for a utility that would show me how the memory was configured on a ZX81 or TS1000. I found a few but they had issues or didn't provide the detail I wanted so I wrote one in ZX BASIC. Unfortunately it does not run on a 1k machine but it should run on any ZX81 or TS1000 with at least 2k...

Thanks! It looks like it was written in a C IDE? You don't happen to have the source code and know which IDE do you?