kuxn

Experiments with emulating the Uxn personal computing environment created by 100R using Kotlin, built live at https://twitch.tv/sebi_io!

Notes from the stream

Dev plan

• How does the stack work?: The stack is separate from the main memory of the Uxn machine, and is 256 bytes in size, can't be addressed randomly, is fully managed by the CPU.

• Implement minimal set of instructions (LIT, ADD, DEO, BRK)

• Successfully run a first simple program / ROM

• Basic screen support

  • DEO2 instruction
  • Screen visualization
  • Pixel support
  • Sprite support
    • 1bpp
    • 2bpp

• Basic system support

  • System colors

• Build immutable version of the UxnMachine using kx.collections.immutable

Important resources

• Uxn main page
• Varvara, the "computer" surrounding the Uxn CPU
• Uxn tutorial, multi-part
• CPU instruction tests

Minimal viable Varvara

Device Address 0x18 (Console Write)