diff options
| -rw-r--r-- | home/header.asm | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/home/header.asm b/home/header.asm index 40041e75d..2e8c58949 100644 --- a/home/header.asm +++ b/home/header.asm @@ -56,14 +56,15 @@ SECTION "joypad", ROM0[$0060] jp Joypad -; Game Boy cartridge header - SECTION "Header", ROM0[$0100] Start:: +; Nintendo requires all Game Boy ROMs to begin with a nop ($00) and a jp ($C3) +; to the starting address. nop jp _Start -; The cartridge header data is filled in by rgbfix. -; This makes sure it doesn't get used. - ds $0150 - @ +; The Game Boy cartridge header data is patched over by rgbfix. +; This makes sure it doesn't get used for anything else. + + ds $0150 - @, $00 |