Metropolis, a proper ZX80/81 demo

Any discussions related to the creation of new hardware or software for the ZX80 or ZX81
User avatar
Posts: 51
Joined: Sun Jun 03, 2012 2:18 pm
Location: Dundee, Scotland

Re: Metropolis, a proper ZX80/81 demo

Post by kpalser » 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,
(1013.41 KiB) Downloaded 127 times
(1.08 MiB) Downloaded 127 times

User avatar
Posts: 1237
Joined: Thu May 15, 2008 10:11 am
Location: Rubber Planet

Re: Metropolis, a proper ZX80/81 demo

Post by yerzmyey » Thu Dec 21, 2017 6:09 pm

An excellent demo.

It's astonishing btw, what ZX81 can do with it screen.
IN NIHILUM REVERTERIS - a big text-adventure game for ZX81:
"MONOCHROME" issue 5 - (Spring 2014) free paper/PDF magazine about ZX81:
ZX81 COMPETITIONS 2007/2009:

Post Reply