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
Metropolis, a proper ZX80/81 demo
Re: Metropolis, a proper ZX80/81 demo
An excellent demo.
It's astonishing btw, what ZX81 can do with it screen.
It's astonishing btw, what ZX81 can do with it screen.
IN NIHILUM REVERTERIS - a big text-adventure game for ZX81: http://tiny.pl/g2m6m
"MONOCHROME" issue 5 - (Spring 2014) free paper/PDF magazine about ZX81: http://tiny.pl/q2m44
ZX81 COMPETITIONS 2007/2009: http://zx81.republika.pl/
"MONOCHROME" issue 5 - (Spring 2014) free paper/PDF magazine about ZX81: http://tiny.pl/q2m44
ZX81 COMPETITIONS 2007/2009: http://zx81.republika.pl/