Page 3 of 3

Re: Metropolis, a proper ZX80/81 demo

Posted: Wed Dec 20, 2017 9:19 pm
by kpalser
Hi Adam,

Thanks for all your efforts. Version 1_1 for ZX81 seems to have done the trick: horizontal position is consistently the same (only 6 pixels off centre to the right), no other scrambled video.

I still need to add the vertical blanking interval this weekend. In particular I want to see if it will have any knock on effect with the ZX80 version which is quite far to the right as per the attached images. I'll dig out my ZX81 and run on real computers at the weekend too.


Thanks again,
Kevin
IMG_7398.PNG
(1013.41 KiB) Downloaded 127 times
IMG_7399.PNG
(1.08 MiB) Downloaded 127 times

Re: Metropolis, a proper ZX80/81 demo

Posted: Thu Dec 21, 2017 6:09 pm
by yerzmyey
An excellent demo.

It's astonishing btw, what ZX81 can do with it screen.