diff options
| author | Rangi <remy.oukaour+rangi42@gmail.com> | 2020-07-03 13:03:21 -0400 |
|---|---|---|
| committer | Rangi <remy.oukaour+rangi42@gmail.com> | 2020-07-03 13:03:21 -0400 |
| commit | 6bd86e10c32cd7b464425adfc01621f3ff6726aa (patch) | |
| tree | 808b190bd43f5024cc694c4e229167ce7928b4d4 /home/header.asm | |
| parent | c9c59dc34323a5e0b1886db5f845c8d41620826e (diff) | |
Reorganize home header
Diffstat (limited to 'home/header.asm')
| -rw-r--r-- | home/header.asm | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/home/header.asm b/home/header.asm new file mode 100644 index 00000000..047f97f4 --- /dev/null +++ b/home/header.asm @@ -0,0 +1,57 @@ +; rst vectors (unused) + +SECTION "rst0", ROM0[$0000] + rst $38 + +SECTION "rst8", ROM0[$0008] + rst $38 + +SECTION "rst10", ROM0[$0010] + rst $38 + +SECTION "rst18", ROM0[$0018] + rst $38 + +SECTION "rst20", ROM0[$0020] + rst $38 + +SECTION "rst28", ROM0[$0028] + rst $38 + +SECTION "rst30", ROM0[$0030] + rst $38 + +SECTION "rst38", ROM0[$0038] + rst $38 + + +; Game Boy hardware interrupts + +SECTION "vblank", ROM0[$0040] + jp VBlank + +SECTION "lcd", ROM0[$0048] + rst $38 + +SECTION "timer", ROM0[$0050] + jp Timer + +SECTION "serial", ROM0[$0058] + jp Serial + +SECTION "joypad", ROM0[$0060] + reti + + +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 Game Boy cartridge header data is patched over by rgbfix. +; This makes sure it doesn't get used for anything else. + + ds $0150 - @, $00 |