Sinclair ZX80 / ZX81 / Z88 Forums

Hi,
A newer version is available here.
Regards,
Zsolt

Hi,

The 'MODULUS' subroutine is now in its original location (1C37). Thanks Greg!

Regards,
Zsolt

Edit: the TEST_5_SP routine too (see here)

Hi,
Have you any contact to authors?
It would be fine to know, what parts of rom are called by this excellent tool.
Thanks,
Zsolt

Hi, Thanks for this, but no the problem seems to be the ROM code. I have tried a few more hi-res demos and the graphics are corrupted when using this new ROM and I imagine some other programs may suffer also. :o Which programs are affected? It would be good to know, because it would be easier to fin...

Hi Moggy,

I just tried these programs w. EO (v1.2), both need sram in 8-16K region.
The game did not work well also with the old rom.
In the SHREB-demo the fill instuction does not work indeed - i will look.

Regards,
Zsolt

Hi Shaun,

Shaun_B wrote: ↑Wed Oct 17, 2018 2:22 pm Where do I obtain that speed test program from?

You can find it also in the zx81x2.zip/tests folder (ClckFReq.p).
Regards,
Zsolt

Hi, Is the Sponzy-Rom in the ZIP ..... ZSOLT's original version? Not exactly: it is different in the "startup" and the "new" section and "DI" instructions have been removed from the entire code. And Erik found a bug during tests of his driver program, which has been fixed. And now i made some change...

Thank you for your feedbacks i am glad if you like it.
The video can be viewed again - without the soundtrack
Zsolt

Dear ZX-Fans, The first steps of this project (inspired by this topic ) were made about two years ago and the results were published as a continuation of "SG81" (C..G2). During this "journey" it was managed to speed up: the printing ; the number printing ; the floating point arithmetics and parts of...

Hi Stefano,
Yes, i know your great work, and the 2nd post of this topic begins with you. (and there were some links as well)
Regards,
Zsolt