Izhora Computer Simulator

Instructions

This is an simulator of my Izhora computer originally made as a large cellular automation. Technically not an emulator, because it does not reproduce the exact timing of the machine, but it properly runs any Izhora program. Import machine code into the list "Machine code file". Load it into the machine by the block "Machine load". Run it by the block "Machine run". Save it back into the the list "Machine code file" by the block "Machine save". Then you can export it into a file. Redraw the display by "Draw display". Reset the while thing by "Reset".

Notes and Credits

Copyright by Yoel Matveyev, 2023 The GNU General Public License v3.0 Run this project in Turbowarp: https://turbowarp.org/850492995/editor?turbo The Izhora computer had only one operation: a custom version of Subleq (subtract and jump if negative or zero". It has 256k of RAM, a 256x128 display and a keyboard. Despite this simplicity, it is possible to write complex programs for it, including compilers and operating systems. Its power is comparable to popular computers from the 1980s, like PDP-11, Scorpion ZS-256 or Atari. The Github page of the project: https://github.com/yoelmatveyev/Izhora Some machine images to try (only .izh flles): https://github.com/yoelmatveyev/Izhora/tree/main/code/Izhora1b Note that the Common Lisp emulator is 100s of times faster and that the Lisp distribution includes an assembler. This version only supports raw machine code.