Re: Metropolis, a proper ZX80/81 demo
Posted: Wed Dec 20, 2017 9:19 pm
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
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