rgbds

Free assembler/linker for the Game Boy and Game Boy Color

RGBDS is a free GBZ80 assembler/linker package for the Game Boy and Game Boy Color. RGBDS additionally contains 2 extra tools to fix ROM headers, and convert PNG files to the Game Boy's planar tile format. The binaries it provides are: rgbasm(1) (assembler) rgblink(1) (linker) rgbfix(1) (checksum/header fixer) rgbgfx(1) (PNG-to-Game Boy graphics converter)