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chip-f8's Introduction

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I'm a hobbyist game developer, and my games can be found on my itch.io page (as well as here on GitHub). I like making games in small, restrictive retro-esque game environments such as PICO-8, CHIP-8, bitsy, Game Boy, etc.

Games

I love retro computing, and have a few related projects:

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chip-f8's Issues

Dont draw the entire screen each DXYN

There's no reason to redraw the entire screen each time a new sprite is drawn.

Maybe write a specialized blit routine so we don't have to initialize the hardware for each row of the sprite.

Handle stack properly

  • Find out how to handle popping an empty stack
  • Find out how to handle overflowing the stack
  • Don't waste a stack register (the bottom of the stack is currently always empty)

Implement all instructions

CHIP-8 instruction set:

  • 00E0
  • 00EE (subroutine)
  • 1NNN
  • 2NNN (subroutine)
  • 3XNN
  • 4XNN
  • 5XY0
  • 6XNN
  • 7XNN
  • 8XY0
  • 8XY1
  • 8XY2
  • 8XY3
  • 8XY4
  • 8XY5 (subtraction)
  • 8XY6
  • 8XY7 (subtraction)
  • 8XYE
  • 9XY0
  • ANNN
  • BNNN
  • CXNN (random)
  • DXYN
  • EX9E (key)
  • EXA1 (key)
  • FX07 (timer)
  • FX0A (key)
  • FX15 (timer)
  • FX18 (timer)
  • FX1E
  • FX29
  • FX33 (bcd)
  • FX55
  • FX65

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