Reading The Joypad - emutyworks/Learning-GB-Programming GitHub Wiki

Reference

• The Game Boy, a hardware autopsy - Part 2: memory mapping (From 6:19)
• The Cycle-Accurate Game Boy Docs (p25: 7. Joypad)

Programming

• Download this file.
  hardware.inc (GitHub)
  font.chr (Website)
  main.asm (GitHub)

rgbasm -o main.o main.asm
rgblink -o readin_joypad.gb main.o
rgbfix -v -p 0 readin_joypad.gb

• Result