Sinclair ZX80 / ZX81 / Z88 Forums

Great work Dominique can't wait for final version !!

WOW what a fantastic program 10-10 for your first project Dominique, spent some time playing with this. Can't wait for the circle and ellipse routine and perhaps an "unfill" routine to reverse a mistaken fill. I did find that if You use fill outside of a closed form the screen would fill upwards one...

There are at least three issues of ula that I know of, the earliest being 2C158E next is 2C184E
and lastly the one that seems to give best tv picture 2C210E usually found on issue three boards.
The fact that You are getting just a black screen suggests a blown ula.

I cannot believe this guy is serious!!! Is there something I'm not getting here? gold plated perhaps? Or a 387 maths co-processor thrown in? Ithought I was pretty hardcore at collecting old school kit but this!!? http://cgi.ebay.co.uk/SINCLAIR-ZX81-COMPUTER-KIT-NEW-OLD-STOCK-RARE-VALUABLE_W0QQitemZ2...

Hi yertz

I finally got 81ptowav working but whilst it PLAYS a wav at correct frequency 22khz it SAVES it at 44khz did You find this also?

Cheers Sir Mo

When are You going to write a sequel to Ballblaster?? pretty damm good.
Better then a lot of the commercial efforts released at the time.

Regards Moggy

81Ptowav Tried this but all I get is application error message "failed to initialise properly etc"

Hi Yerz
Try this link for some type in zx80 stuff

ftp://ftp.worldofspectrum.org/pub/sincl ... ines/Sync/

Regards Moggy

hi yerzmyey

Look out for the Memotech or Fuller keyboards The Filesixty rubber ones were not that good, sticking keys or no press at all when well used!

Regards moggy

Hi Rich

I have sent pm with possible solution

Regards Moggy