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bank_023.asm
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; Disassembly of "crystalkaizo.gbc"
; This file was created with:
; mgbdis v1.4 - Game Boy ROM disassembler by Matt Currie and contributors.
; https://github.com/mattcurrie/mgbdis
SECTION "ROM Bank $023", ROMX[$4000], BANK[$23]
ret
call $05a7
ld a, [$d269]
ld [$d848], a
call Call_023_4117
ld [$d841], a
ret
ld hl, $d846
bit 7, [hl]
jr nz, jr_023_406e
ld a, [$d269]
ld hl, $d848
cp [hl]
jr z, jr_023_406e
ld a, [$d269]
ld [$d848], a
call Call_023_4117
ld hl, $d841
cp [hl]
jr z, jr_023_406e
ld [$d841], a
ld hl, $d038
ldh a, [rSVBK]
ld b, a
ld a, $05
ldh [rSVBK], a
ld c, $04
jr_023_403f:
ld d, [hl]
inc hl
ld e, [hl]
inc hl
push de
dec c
jr nz, jr_023_403f
ld a, b
ldh [rSVBK], a
ld b, $09
call $3340
ld hl, $d03f
ldh a, [rSVBK]
ld d, a
ld a, $05
ldh [rSVBK], a
ld e, $04
jr_023_405b:
pop bc
ld [hl], c
dec hl
ld [hl], b
dec hl
dec e
jr nz, jr_023_405b
ld a, d
ldh [rSVBK], a
call Call_023_4070
call $045a
scf
ret
jr_023_406e:
and a
ret
Call_023_4070:
ld c, $09
call Call_023_417c
call Call_023_414e
ret
ld c, $12
call Call_023_417c
ld b, $04
call Call_023_416d
ret
call Call_023_40c1
ld c, $09
call Call_023_417c
ld b, $04
call Call_023_415e
ret
call Call_023_40c1
ld c, $09
call Call_023_417c
ld b, $04
jr_023_409c:
call Call_023_414e
inc hl
inc hl
inc hl
ld c, $07
call $0468
dec b
jr nz, jr_023_409c
ret
ld c, $00
call Call_023_417c
ld b, $04
call Call_023_415e
ret
ld c, $09
call Call_023_417c
ld b, $04
call Call_023_416d
ret
Call_023_40c1:
ldh a, [rSVBK]
push af
ld a, $05
ldh [rSVBK], a
ld hl, $d000
ld a, [hl+]
ld e, a
ld a, [hl+]
ld d, a
ld hl, $d008
ld c, $06
jr_023_40d4:
ld a, e
ld [hl+], a
ld a, d
ld [hl+], a
inc hl
inc hl
inc hl
inc hl
inc hl
inc hl
dec c
jr nz, jr_023_40d4
pop af
ldh [rSVBK], a
ret
ld hl, $410f
ld a, [$c2d0]
cp $04
jr z, jr_023_40fc
and $07
add l
ld l, a
ld a, $00
adc h
ld h, a
ld a, [hl]
ld [$d847], a
ret
jr_023_40fc:
ld a, [$d84c]
bit 2, a
jr nz, jr_023_4109
ld a, $ff
ld [$d847], a
ret
jr_023_4109:
ld a, $aa
ld [$d847], a
ret
db $e4
ld d, l
xor d
nop
rst $38
db $e4
db $e4
db $e4
Call_023_4117:
ld a, [$d269]
ld e, a
ld d, $00
ld hl, $4126
add hl, de
add hl, de
ld a, [hl+]
ld h, [hl]
ld l, a
jp hl
ld l, $41
inc [hl]
ld b, c
ld a, $41
ld b, [hl]
ld b, c
ld a, [$d847]
and $03
ret
ld a, [$d847]
and $0c
srl a
srl a
ret
ld a, [$d847]
and $30
swap a
ret
ld a, [$d847]
and $c0
rlca
rlca
ret
Call_023_414e:
push hl
push de
ld a, [hl+]
call $0c9f
ld a, [hl+]
ld e, a
ld a, [hl+]
ld d, a
call $0ccb
pop de
pop hl
ret
Call_023_415e:
jr_023_415e:
call Call_023_414e
inc hl
inc hl
inc hl
ld c, $02
call $0468
dec b
jr nz, jr_023_415e
ret
Call_023_416d:
jr_023_416d:
call Call_023_414e
dec hl
dec hl
dec hl
ld c, $02
call $0468
dec b
jr nz, jr_023_416d
ret
Call_023_417c:
ldh a, [$e6]
and a
jr nz, jr_023_4197
ld a, [$d841]
and $03
push bc
ld c, a
ld b, $00
ld hl, $419e
add hl, bc
add hl, bc
ld a, [hl+]
ld h, [hl]
ld l, a
pop bc
ld b, $00
add hl, bc
ret
jr_023_4197:
ld hl, $41fa
ld b, $00
add hl, bc
ret
and [hl]
ld b, c
cp e
ld b, c
ret nc
ld b, c
push hl
ld b, c
rst $38
rst $38
rst $38
cp $fe
cp $f9
db $e4
db $e4
db $e4
ret nc
ret nc
sub b
add b
add b
ld b, b
ld b, b
ld b, b
nop
nop
nop
rst $38
rst $38
rst $38
cp $fe
cp $f9
db $e4
db $e4
db $e4
ret nc
ret nc
sub b
add b
add b
ld b, b
ld b, b
ld b, b
nop
nop
nop
rst $38
rst $38
rst $38
cp $fe
cp $f9
db $e4
db $e4
jp hl
ret nc
ret nc
sub b
add b
add b
ld b, b
ld b, b
ld b, b
nop
nop
nop
rst $38
rst $38
rst $38
cp $fe
rst $38
cp $e4
rst $38
db $fd
ret nc
rst $38
db $fd
add b
rst $38
nop
ld b, b
nop
nop
nop
nop
rst $38
rst $38
rst $38
cp $fe
cp $f9
ld sp, hl
ld sp, hl
db $e4
db $e4
db $e4
sub b
sub b
sub b
ld b, b
ld b, b
ld b, b
nop
nop
nop
call Call_023_426d
ldh a, [rBGP]
ld [$cfc7], a
ldh a, [rOBP0]
ld [$cfc8], a
ldh a, [rOBP1]
ld [$cfc9], a
call $045a
ld hl, $ff9e
ld a, [hl]
push af
ld [hl], $01
jr_023_422b:
ld a, [$cf63]
bit 7, a
jr nz, jr_023_423a
call Call_023_4314
call $045a
jr jr_023_422b
jr_023_423a:
ldh a, [rSVBK]
push af
ld a, $05
ldh [rSVBK], a
ld hl, $d000
ld bc, $0040
xor a
call $3041
pop af
ldh [rSVBK], a
ld a, $ff
ld [$cfc7], a
call $0c9f
call $045a
xor a
ldh [$c6], a
ldh [$c7], a
ldh [$c8], a
ldh [$d0], a
ld a, $01
ldh [rSVBK], a
pop af
ldh [$9e], a
call $045a
ret
Call_023_426d:
ld a, [$c2dc]
cp $04
jr z, jr_023_4288
ld a, $01
ld hl, $6454
rst $08
call $1ad2
call $045a
call Call_023_42a0
call Call_023_4f4f
jr jr_023_428b
jr_023_4288:
call Call_023_42aa
jr_023_428b:
ld a, $90
ldh [$d2], a
call $045a
xor a
ldh [$d4], a
ld hl, $cf63
xor a
ld [hl+], a
ld [hl+], a
ld [hl], a
call Call_023_46d8
ret
Call_023_42a0:
call Call_023_42aa
ld hl, $9800
call Call_023_42cf
ret
Call_023_42aa:
ld de, $42f4
ld hl, $8fe0
ld b, $23
ld c, $02
call $0eba
ldh a, [rVBK]
push af
ld a, $01
ldh [rVBK], a
ld de, $42f4
ld hl, $8fe0
ld b, $23
ld c, $02
call $0eba
pop af
ldh [rVBK], a
ret
Call_023_42cf:
ldh a, [rSVBK]
push af
ld a, $06
ldh [rSVBK], a
push hl
ld hl, $d000
ld bc, $0280
jr_023_42dd:
ld [hl], $ff
inc hl
dec bc
ld a, c
or b
jr nz, jr_023_42dd
pop hl
ld de, $d000
ld b, $23
ld c, $28
call $0eba
pop af
ldh [rSVBK], a
ret
rst $38
rst $38
add c
add c
jp $e781
add c
rst $20
sbc c
jp $81bd
rst $38
rst $38
rst $38
rst $38
rst $38
rst $38
rst $38
rst $38
rst $38
rst $38
rst $38
rst $38
rst $38
rst $38
rst $38
rst $38
rst $38
rst $38
rst $38
Call_023_4314:
ld a, [$cf63]
ld e, a
ld d, $00
ld hl, $4323
add hl, de
add hl, de
ld a, [hl+]
ld h, [hl]
ld l, a
jp hl
ld h, l
ld b, e
call c, $a145
ld b, e
xor e
ld b, e
xor e
ld b, e
xor e
ld b, e
sbc h
ld b, e
add sp, $43
ld [$dc44], sp
ld b, l
and c
ld b, e
xor e
ld b, e
xor e
ld b, e
xor e
ld b, e
sbc h
ld b, e
ld l, b
ld b, a
call c, $a145
ld b, e
xor e
ld b, e
xor e
ld b, e
xor e
ld b, e
sbc h
ld b, e
dec a
ld b, h
ld c, a
ld b, h
call c, $a145
ld b, e
xor e
ld b, e
xor e
ld b, e
xor e
ld b, e
sbc h
ld b, e
ld a, b
ld b, l
jr_023_4361:
adc a
ld b, l
sub e
ld b, e
ld de, $0000
ld a, [$c639]
add $03
ld hl, $d213
cp [hl]
jr nc, jr_023_4375
set 0, e
jr_023_4375:
ld a, [$d19a]
cp $04
jr z, jr_023_4386
cp $05
jr z, jr_023_4386
cp $07
jr z, jr_023_4386
set 1, e
jr_023_4386:
ld hl, $438f
add hl, de
ld a, [hl]
ld [$cf63], a
ret
ld bc, $1009
jr jr_023_4361
dec bc
jr nc, jr_023_43d5
add b
ld [$cf63], a
ret
Call_023_439c:
ld hl, $cf63
inc [hl]
ret
call Call_023_439c
xor a
ld [$cf64], a
ldh [$d4], a
ret
call Call_023_43b3
ret nc
call Call_023_439c
ret
Call_023_43b3:
ld a, [$d847]
cp $ff
jr z, jr_023_43d5
ld hl, $cf64
ld a, [hl]
inc [hl]
srl a
ld e, a
ld d, $00
ld hl, $43db
add hl, de
ld a, [hl]
cp $01
jr z, jr_023_43d5
ld [$cfc7], a
call $0c9f
and a
ret
jr_023_43d5:
xor a
ld [$cf64], a
scf
ret
ld sp, hl
cp $ff
cp $f9
db $e4
sub b
ld b, b
nop
ld b, b
sub b
db $e4
ld bc, $013e
ld hl, $5602
rst $08
ld a, $05
ldh [rSVBK], a
call Call_023_439c
ld a, $43
ldh [$c6], a
xor a
ldh [$c7], a
ld a, $90
ldh [$c8], a
xor a
ld [$cf64], a
ld [$cf65], a
ret
ld a, [$cf64]
cp $60
jr nc, jr_023_4413
call Call_023_4419
ret
jr_023_4413:
ld a, $20
ld [$cf63], a
ret
Call_023_4419:
ld hl, $cf65
ld a, [hl]
inc [hl]
ld hl, $cf64
ld d, [hl]
add [hl]
ld [hl], a
ld a, $90
ld bc, $d100
ld e, $00
jr_023_442b:
push af
push de
ld a, e
call Call_023_46f7
ld [bc], a
inc bc
pop de
ld a, e
add $02
ld e, a
pop af
dec a
jr nz, jr_023_442b
ret
ld a, $01
ld hl, $5602
rst $08
ld a, $05
ldh [rSVBK], a
call Call_023_439c
xor a
ld [$cf64], a
ret
xor a
ldh [$d4], a
ld a, [$cf64]
ld e, a
ld d, $00
ld hl, $4490
add hl, de
add hl, de
add hl, de
add hl, de
add hl, de
ld a, [hl+]
cp $ff
jr z, jr_023_447a
ld [$cf65], a
call Call_023_44f5
ld a, $01
ldh [$d4], a
call $045a
call $045a
ld hl, $cf64
inc [hl]
ret
jr_023_447a:
ld a, $01
ldh [$d4], a
call $045a
call $045a
call $045a
xor a
ldh [$d4], a
ld a, $20
ld [$cf63], a
ret
nop
jr c, jr_023_44d8
add hl, de
push bc
nop
ld a, $45
call c, $00c4
ld c, b
ld b, l
and c
call nz, Call_023_5a00
ld b, l
and l
call nz, $6800
ld b, l
xor c
call nz, Call_023_6801
ld b, l
xor d
call nz, Call_023_5a01
ld b, l
xor [hl]
call nz, $4801
ld b, l
or d
call nz, $3e01
ld b, l
rst $28
call nz, $3801
ld b, l
ld a, [hl+]
push bc
inc bc
jr c, jr_023_450a
adc [hl]
push bc
inc bc
ld a, $45
set 0, l
inc bc
ld c, b
ld b, l
ld b, $c6
inc bc
ld e, d
ld b, l
ld [bc], a
add $03
ld l, b
jr_023_44d8:
ld b, l
cp $c5
ld [bc], a
ld l, b
ld b, l
db $fd
push bc
ld [bc], a
ld e, d
ld b, l
ld sp, hl
push bc
ld [bc], a
ld c, b
ld b, l
push af
push bc
ld [bc], a
ld a, $45
cp b
push bc
ld [bc], a
jr c, @+$47
ld a, l
push bc
rst $38
Call_023_44f5:
ld a, [hl+]
ld e, a
ld a, [hl+]
ld d, a
ld a, [hl+]
ld h, [hl]
ld l, a
jr_023_44fc:
push hl
ld a, [de]
ld c, a
inc de
jr_023_4500:
ld [hl], $ff
ld a, [$cf65]
bit 0, a
jr z, jr_023_450c
inc hl
jr_023_450a:
jr jr_023_450d