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|
INCLUDE "constants.asm"
if DEBUG
SECTION "Misc Utility Functions", ROM0[$33EF]
else
SECTION "Misc Utility Functions", ROM0[$33B3]
endc
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
ld bc, 6
.loop:
add hl, bc
dec a
jr nz, .loop
ret
AddNTimes:: ; 3429 (0:3429)
; Adds bc to hl, a times
and a
ret z
.loop
add hl, bc
dec a
jr nz, .loop
ret
; 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
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
|
