Severely Limited Capabilities by Noice [web]
Release info ------------ Name: Severely Limited Capabilities Platform: ZX-81 (unexpanded) Release Date: 2009-02-28 Code: Andreas Gustafsson aka. Shadow/Noice History behind this demo ------------------------ A new year, a new platform for me! This time I laid my hands on one of the smallest computers I've ever seen - the Sinclair ZX-81. As the name of this demo suggests, this is probably the most limited computer I've ever worked with: 1024 bytes RAM and no display hardware, so generating the screen steals most of the CPU cycles from the Z80-CPU. Also since the screen memory is taken out of the 1024 bytes of total RAM, a full 32x24 screen fills up almost 800 bytes of the available 1024... Well, I made an attempt at least to code something demo-like, and this is what I came up with - a little sine-wave effect and a small logo. I had a bit of trouble deciding which pattern looked best in the sine-wave effect, so I attached two other versions in the bonus directory. How to run it ------------- Run the .P file in your ZX-81 emulator of choice (EightyOne for example). If you are the lucky owner of some real hardware, you can play SLC.mp3 from your computer or an mp3-player to load it via the cassette-interface on the ZX-81. Additional info --------------- Created with no$zx81 built in assembler. Contact info ------------ http://sdw.webhop.net [email protected]
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