Metropolis, a proper ZX80/81 demo

Any discussions related to the creation of new hardware or software for the ZX80 or ZX81
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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,
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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.
"FERENGI" - an arcade game for ZX81:
"MONOCHROME" issue 5 (Spring 2014) - a free paper/PDF magazine about ZX81:
ZX-81/TS1000/TS1500 COMPETITIONS 2007/2009:

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