diff options
Diffstat (limited to 'home/util.asm')
| -rw-r--r-- | home/util.asm | 32 |
1 files changed, 30 insertions, 2 deletions
diff --git a/home/util.asm b/home/util.asm index bfc4ce4..6591da2 100644 --- a/home/util.asm +++ b/home/util.asm @@ -1,6 +1,21 @@ INCLUDE "constants.asm" -SECTION "Misc Utility Functions", ROM0[$3429] +if DEBUG +SECTION "Misc Utility Functions", ROM0[$341F] +else +SECTION "Misc Utility Functions", ROM0[$33E3] +endc + +_341F:: ; 341f +; Returns hl + a * 6 + and a + ret z + ld bc, 6 +.loop: + add hl, bc + dec a + jr nz, .loop + ret AddNTimes:: ; 3429 (0:3429) and a @@ -10,4 +25,17 @@ AddNTimes:: ; 3429 (0:3429) dec a jr nz, .asm_342b ret -; 0x3430
\ No newline at end of file +; 0x3430 + +memcmp:: ; 3430 +; Compare c bytes at hl and de +; Returns z if all equal, nz otherwise. +.loop: + ld a, [de] + cp [hl] + ret nz + inc de + inc hl + dec c + jr nz, .loop + ret |