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Pixel Plotting in ZX80 Basic

Posted: Mon Apr 15, 2019 10:23 am
by TheSnial
For fun I wanted to reproduce the Jupiter Ace sine wave program on a ZX80 in BASIC. ZX80 Basic of course doesn't provide PLOT or UNPLOT, the display is inconveniently after the workspace and variables (so you can't just cache the start address) and the block graphics character codes are in a wacky order, but eventually I managed it :-)

Image

Image

A longer blog about this epic struggle can be found here.

.z80 files attached.

Re: Pixel Plotting in ZX80 Basic

Posted: Thu Apr 25, 2019 10:55 pm
by Lardo Boffin
Interesting program and blog! Clearly a lot of patience was required.

Re: Pixel Plotting in ZX80 Basic

Posted: Fri Apr 26, 2019 12:39 pm
by mrtinb
Let me say it short: I'm impressed.

Re: Pixel Plotting in ZX80 Basic

Posted: Thu Jul 25, 2019 9:41 pm
by stefano
I like it, that's the classic way to do advanced stuff in the 8bit age and get published on magazines !