diff options
Diffstat (limited to 'home/util.asm')
| -rw-r--r-- | home/util.asm | 85 |
1 files changed, 82 insertions, 3 deletions
diff --git a/home/util.asm b/home/util.asm index 6591da2..880513b 100644 --- a/home/util.asm +++ b/home/util.asm @@ -1,12 +1,59 @@ INCLUDE "constants.asm" if DEBUG -SECTION "Misc Utility Functions", ROM0[$341F] +SECTION "Misc Utility Functions", ROM0[$33EF] else -SECTION "Misc Utility Functions", ROM0[$33E3] +SECTION "Misc Utility Functions", ROM0[$33B3] endc -_341F:: ; 341f +Function33ef:: + ; hl = src + ; de = dest + ; b = y + ; c = x + push hl + push de + push bc + ld a, b + dec a + dec a + ld b, $0 +.asm_33f7: ; 00:33f7 + add hl, bc + dec a + jr nz, .asm_33f7 + pop bc + dec b + ld a, b + push hl + add hl, bc + ld d, h + ld e, l + pop hl +.asm_3403: ; 00:3403 + push af + push bc + call CopyBytes + pop bc + push bc + ld a, c + xor $ff + ld c, a + ld b, $ff + inc bc + add hl, bc + ld d, h + ld e, l + add hl, bc + pop bc + pop af + dec a + jr nz, .asm_3403 + pop hl + pop de + jp CopyBytes + +SkipNames:: ; 341f ; Returns hl + a * 6 and a ret z @@ -39,3 +86,35 @@ memcmp:: ; 3430 dec c jr nz, .loop ret + +Function3439:: ; 3439 +; Place 2x2 sprite from *de into OAM at slot a + ld h, HIGH(wVirtualOAM) + swap a + ld l, a + call .Load + push bc + ld a, $8 + add c + ld c, a + call .Load + pop bc + ld a, $8 + add b + ld b, a + call .Load + ld a, $8 + add c + ld c, a +.Load: ; 00:3455 + ld [hl], b + inc hl + ld [hl], c + inc hl + ld a, [de] + inc de + ld [hli], a + ld a, [de] + inc de + ld [hli], a + ret |