path: root/asm/blit.s

	.include "asm/macros.inc"
	.include "constants/constants.inc"

	.syntax unified

	.text

	thumb_func_start BlitBitmapRect4BitWithoutColorKey
BlitBitmapRect4BitWithoutColorKey: @ 8004A60
	push {r4-r7,lr}
	mov r7, r8
	push {r7}
	sub sp, 0x14
	ldr r4, [sp, 0x2C]
	ldr r5, [sp, 0x30]
	ldr r6, [sp, 0x34]
	ldr r7, [sp, 0x38]
	lsls r2, 16
	lsrs r2, 16
	lsls r3, 16
	lsrs r3, 16
	lsls r4, 16
	lsrs r4, 16
	lsls r5, 16
	lsrs r5, 16
	lsls r6, 16
	lsrs r6, 16
	lsls r7, 16
	lsrs r7, 16
	str r4, [sp]
	str r5, [sp, 0x4]
	str r6, [sp, 0x8]
	str r7, [sp, 0xC]
	movs r4, 0xFF
	str r4, [sp, 0x10]
	bl BlitBitmapRect4Bit
	add sp, 0x14
	pop {r3}
	mov r8, r3
	pop {r4-r7}
	pop {r0}
	bx r0
	thumb_func_end BlitBitmapRect4BitWithoutColorKey

	thumb_func_start BlitBitmapRect4Bit
BlitBitmapRect4Bit: @ 8004AA4
	push {r4-r7,lr}
	mov r7, r10
	mov r6, r9
	mov r5, r8
	push {r5-r7}
	sub sp, 0x2C
	str r0, [sp]
	str r1, [sp, 0x4]
	ldr r0, [sp, 0x4C]
	ldr r1, [sp, 0x50]
	ldr r4, [sp, 0x54]
	ldr r5, [sp, 0x58]
	ldr r6, [sp, 0x5C]
	lsls r2, 16
	lsrs r2, 16
	str r2, [sp, 0x8]
	lsls r3, 16
	lsrs r7, r3, 16
	lsls r0, 16
	lsrs r0, 16
	str r0, [sp, 0xC]
	lsls r1, 16
	lsrs r1, 16
	mov r9, r1
	lsls r4, 16
	lsrs r4, 16
	lsls r5, 16
	lsrs r5, 16
	lsls r6, 24
	lsrs r6, 24
	str r6, [sp, 0x10]
	ldr r0, [sp, 0x4]
	ldrh r3, [r0, 0x4]
	ldr r1, [sp, 0xC]
	subs r0, r3, r1
	adds r2, r4
	mov r8, r2
	cmp r0, r4
	bge _08004AF8
	ldr r2, [sp, 0x8]
	adds r0, r2
	mov r8, r0
_08004AF8:
	ldr r4, [sp, 0x4]
	ldrh r0, [r4, 0x6]
	mov r1, r9
	subs r0, r1
	adds r2, r5, r7
	str r2, [sp, 0x14]
	cmp r0, r5
	bge _08004B0C
	adds r0, r7
	str r0, [sp, 0x14]
_08004B0C:
	ldr r4, [sp]
	ldrh r1, [r4, 0x4]
	movs r2, 0x7
	adds r0, r1, 0
	ands r0, r2
	adds r1, r0
	asrs r1, 3
	str r1, [sp, 0x18]
	adds r0, r3, 0
	ands r0, r2
	adds r0, r3, r0
	asrs r0, 3
	str r0, [sp, 0x1C]
	ldr r0, [sp, 0x10]
	cmp r0, 0xFF
	bne _08004BCA
	adds r3, r7, 0
	mov r1, r9
	ldr r2, [sp, 0x14]
	cmp r3, r2
	blt _08004B38
	b _08004C72
_08004B38:
	ldr r5, [sp, 0x8]
	ldr r6, [sp, 0xC]
	adds r4, r3, 0x1
	str r4, [sp, 0x24]
	adds r0, r1, 0x1
	str r0, [sp, 0x28]
	cmp r5, r8
	bge _08004BBE
	movs r7, 0x3
	asrs r0, r3, 3
	ldr r2, [sp, 0x18]
	muls r0, r2
	lsls r0, 5
	mov r10, r0
	lsls r0, r3, 29
	lsrs r0, 27
	mov r9, r0
	asrs r0, r1, 3
	ldr r4, [sp, 0x1C]
	muls r0, r4
	lsls r0, 5
	mov r12, r0
	lsls r0, r1, 29
	lsrs r3, r0, 27
_08004B68:
	asrs r0, r5, 1
	ands r0, r7
	ldr r2, [sp]
	ldr r1, [r2]
	adds r1, r0
	asrs r0, r5, 3
	lsls r0, 5
	adds r1, r0
	add r1, r10
	mov r4, r9
	adds r2, r1, r4
	asrs r0, r6, 1
	ands r0, r7
	ldr r4, [sp, 0x4]
	ldr r1, [r4]
	adds r1, r0
	asrs r0, r6, 3
	lsls r0, 5
	adds r1, r0
	add r1, r12
	adds r4, r1, r3
	ldrb r2, [r2]
	adds r0, r5, 0
	movs r1, 0x1
	ands r0, r1
	lsls r0, 2
	asrs r2, r0
	movs r0, 0xF
	ands r2, r0
	adds r0, r6, 0
	ands r0, r1
	lsls r1, r0, 2
	lsls r2, r1
	movs r0, 0xF0
	asrs r0, r1
	ldrb r1, [r4]
	ands r0, r1
	orrs r2, r0
	strb r2, [r4]
	adds r5, 0x1
	adds r6, 0x1
	cmp r5, r8
	blt _08004B68
_08004BBE:
	ldr r3, [sp, 0x24]
	ldr r1, [sp, 0x28]
	ldr r2, [sp, 0x14]
	cmp r3, r2
	blt _08004B38
	b _08004C72
_08004BCA:
	adds r3, r7, 0
	mov r1, r9
	ldr r4, [sp, 0x14]
	cmp r3, r4
	bge _08004C72
_08004BD4:
	ldr r5, [sp, 0x8]
	ldr r6, [sp, 0xC]
	adds r0, r3, 0x1
	str r0, [sp, 0x24]
	adds r2, r1, 0x1
	str r2, [sp, 0x28]
	cmp r5, r8
	bge _08004C68
	movs r4, 0x3
	mov r9, r4
	asrs r0, r3, 3
	ldr r2, [sp, 0x18]
	muls r0, r2
	lsls r0, 5
	str r0, [sp, 0x20]
	lsls r0, r3, 29
	lsrs r0, 27
	mov r10, r0
	movs r3, 0x1
	asrs r0, r1, 3
	ldr r4, [sp, 0x1C]
	muls r0, r4
	lsls r0, 5
	mov r12, r0
	lsls r0, r1, 29
	lsrs r7, r0, 27
_08004C08:
	asrs r0, r5, 1
	mov r1, r9
	ands r0, r1
	ldr r2, [sp]
	ldr r1, [r2]
	adds r1, r0
	asrs r0, r5, 3
	lsls r0, 5
	adds r1, r0
	ldr r4, [sp, 0x20]
	adds r1, r4
	mov r0, r10
	adds r2, r1, r0
	asrs r0, r6, 1
	mov r1, r9
	ands r0, r1
	ldr r4, [sp, 0x4]
	ldr r1, [r4]
	adds r1, r0
	asrs r0, r6, 3
	lsls r0, 5
	adds r1, r0
	add r1, r12
	adds r4, r1, r7
	ldrb r2, [r2]
	adds r0, r5, 0
	ands r0, r3
	lsls r0, 2
	asrs r2, r0
	movs r0, 0xF
	ands r2, r0
	ldr r0, [sp, 0x10]
	cmp r2, r0
	beq _08004C60
	adds r0, r6, 0
	ands r0, r3
	lsls r1, r0, 2
	lsls r2, r1
	movs r0, 0xF0
	asrs r0, r1
	ldrb r1, [r4]
	ands r0, r1
	orrs r2, r0
	strb r2, [r4]
_08004C60:
	adds r5, 0x1
	adds r6, 0x1
	cmp r5, r8
	blt _08004C08
_08004C68:
	ldr r3, [sp, 0x24]
	ldr r1, [sp, 0x28]
	ldr r2, [sp, 0x14]
	cmp r3, r2
	blt _08004BD4
_08004C72:
	add sp, 0x2C
	pop {r3-r5}
	mov r8, r3
	mov r9, r4
	mov r10, r5
	pop {r4-r7}
	pop {r0}
	bx r0
	thumb_func_end BlitBitmapRect4Bit

	thumb_func_start FillBitmapRect4Bit
FillBitmapRect4Bit: @ 8004C84
	push {r4-r7,lr}
	mov r7, r10
	mov r6, r9
	mov r5, r8
	push {r5-r7}
	sub sp, 0x4
	mov r9, r0
	ldr r0, [sp, 0x24]
	ldr r4, [sp, 0x28]
	lsls r1, 16
	lsrs r1, 16
	mov r10, r1
	lsls r2, 16
	lsrs r2, 16
	adds r5, r2, 0
	lsls r3, 16
	lsrs r3, 16
	lsls r0, 16
	lsrs r0, 16
	lsls r4, 24
	lsrs r7, r4, 24
	adds r4, r1, r3
	mov r3, r9
	ldrh r1, [r3, 0x4]
	cmp r4, r1
	ble _08004CBA
	adds r4, r1, 0
_08004CBA:
	adds r2, r0
	mov r12, r2
	mov r2, r9
	ldrh r0, [r2, 0x6]
	cmp r12, r0
	ble _08004CC8
	mov r12, r0
_08004CC8:
	movs r0, 0x7
	ands r0, r1
	adds r0, r1, r0
	asrs r0, 3
	str r0, [sp]
	adds r1, r5, 0
	cmp r1, r12
	bge _08004D30
_08004CD8:
	mov r3, r10
	adds r0, r1, 0x1
	mov r8, r0
	cmp r3, r4
	bge _08004D2A
	asrs r0, r1, 3
	ldr r2, [sp]
	muls r0, r2
	lsls r6, r0, 5
	lsls r0, r1, 29
	lsrs r5, r0, 27
_08004CEE:
	asrs r2, r3, 1
	movs r0, 0x3
	ands r2, r0
	mov r0, r9
	ldr r1, [r0]
	adds r1, r2
	asrs r0, r3, 3
	lsls r0, 5
	adds r1, r0
	adds r1, r6
	adds r2, r1, r5
	movs r0, 0x1
	ands r0, r3
	cmp r0, 0
	beq _08004D1A
	ldrb r0, [r2]
	movs r1, 0xF
	ands r1, r0
	lsls r0, r7, 4
	orrs r1, r0
	strb r1, [r2]
	b _08004D24
_08004D1A:
	ldrb r1, [r2]
	movs r0, 0xF0
	ands r0, r1
	orrs r0, r7
	strb r0, [r2]
_08004D24:
	adds r3, 0x1
	cmp r3, r4
	blt _08004CEE
_08004D2A:
	mov r1, r8
	cmp r1, r12
	blt _08004CD8
_08004D30:
	add sp, 0x4
	pop {r3-r5}
	mov r8, r3
	mov r9, r4
	mov r10, r5
	pop {r4-r7}
	pop {r0}
	bx r0
	thumb_func_end FillBitmapRect4Bit

	thumb_func_start BlitBitmapRect4BitTo8Bit
BlitBitmapRect4BitTo8Bit: @ 8004D40
	push {r4-r7,lr}
	mov r7, r10
	mov r6, r9
	mov r5, r8
	push {r5-r7}
	sub sp, 0x3C
	str r0, [sp]
	str r1, [sp, 0x4]
	ldr r0, [sp, 0x5C]
	ldr r1, [sp, 0x60]
	ldr r5, [sp, 0x64]
	ldr r4, [sp, 0x68]
	ldr r6, [sp, 0x6C]
	ldr r7, [sp, 0x70]
	mov r8, r7
	lsls r2, 16
	lsrs r2, 16
	str r2, [sp, 0x8]
	lsls r3, 16
	lsrs r3, 16
	lsls r0, 16
	lsrs r0, 16
	str r0, [sp, 0xC]
	lsls r1, 16
	lsrs r7, r1, 16
	lsls r5, 16
	lsrs r5, 16
	lsls r4, 16
	lsrs r4, 16
	lsls r6, 24
	lsrs r6, 24
	str r6, [sp, 0x10]
	mov r0, r8
	lsls r0, 28
	lsrs r0, 24
	str r0, [sp, 0x14]
	lsls r0, r6, 28
	lsrs r0, 24
	str r0, [sp, 0x28]
	ldr r1, [sp, 0x4]
	ldrh r0, [r1, 0x4]
	ldr r2, [sp, 0xC]
	subs r0, r2
	ldr r1, [sp, 0x8]
	adds r1, r5, r1
	str r1, [sp, 0x18]
	cmp r0, r5
	bge _08004DA6
	ldr r2, [sp, 0x8]
	adds r0, r2
	str r0, [sp, 0x18]
_08004DA6:
	ldr r5, [sp, 0x4]
	ldrh r1, [r5, 0x6]
	subs r0, r1, r7
	cmp r0, r4
	bge _08004DB8
	adds r0, r3, r1
	subs r0, r7
	str r0, [sp, 0x1C]
	b _08004DBC
_08004DB8:
	adds r4, r3, r4
	str r4, [sp, 0x1C]
_08004DBC:
	ldr r0, [sp]
	ldrh r1, [r0, 0x4]
	movs r2, 0x7
	adds r0, r1, 0
	ands r0, r2
	adds r1, r0
	asrs r1, 3
	str r1, [sp, 0x20]
	ldr r5, [sp, 0x4]
	ldrh r1, [r5, 0x4]
	adds r0, r1, 0
	ands r0, r2
	adds r1, r0
	asrs r1, 3
	str r1, [sp, 0x24]
	ldr r0, [sp, 0x10]
	cmp r0, 0xFF
	bne _08004E9C
	adds r2, r3, 0
	adds r5, r7, 0
	ldr r1, [sp, 0x1C]
	cmp r2, r1
	blt _08004DEC
	b _08004F7E
_08004DEC:
	ldr r3, [sp, 0x8]
	lsrs r3, 1
	str r3, [sp, 0x2C]
	movs r0, 0x3
	ands r3, r0
	str r3, [sp, 0x2C]
	ldr r7, [sp, 0x8]
	lsrs r0, r7, 3
	lsls r0, 5
	str r0, [sp, 0x30]
_08004E00:
	ldr r0, [sp]
	ldr r1, [r0]
	ldr r3, [sp, 0x2C]
	adds r1, r3
	ldr r7, [sp, 0x30]
	adds r1, r7
	asrs r0, r2, 3
	ldr r3, [sp, 0x20]
	muls r0, r3
	lsls r0, 5
	mov r8, r0
	add r1, r8
	lsls r0, r2, 29
	lsrs r7, r0, 27
	adds r6, r1, r7
	ldr r3, [sp, 0x8]
	ldr r4, [sp, 0xC]
	adds r2, 0x1
	mov r10, r2
	adds r0, r5, 0x1
	str r0, [sp, 0x38]
	ldr r1, [sp, 0x18]
	cmp r3, r1
	bge _08004E90
	asrs r0, r5, 3
	ldr r2, [sp, 0x24]
	muls r0, r2
	lsls r0, 6
	mov r12, r0
	lsls r0, r5, 29
	lsrs r0, 26
	mov r9, r0
_08004E40:
	movs r0, 0x7
	ands r0, r4
	ldr r5, [sp, 0x4]
	ldr r1, [r5]
	adds r1, r0
	asrs r0, r4, 3
	lsls r0, 6
	adds r1, r0
	add r1, r12
	mov r0, r9
	adds r5, r1, r0
	movs r0, 0x1
	ands r0, r3
	cmp r0, 0
	beq _08004E64
	ldrb r0, [r6]
	lsrs r0, 4
	b _08004E80
_08004E64:
	asrs r2, r3, 1
	movs r0, 0x3
	ands r2, r0
	ldr r0, [sp]
	ldr r1, [r0]
	adds r1, r2
	asrs r0, r3, 3
	lsls r0, 5
	adds r1, r0
	add r1, r8
	adds r6, r1, r7
	ldrb r1, [r6]
	movs r0, 0xF
	ands r0, r1
_08004E80:
	ldr r1, [sp, 0x14]
	adds r0, r1, r0
	strb r0, [r5]
	adds r3, 0x1
	adds r4, 0x1
	ldr r2, [sp, 0x18]
	cmp r3, r2
	blt _08004E40
_08004E90:
	mov r2, r10
	ldr r5, [sp, 0x38]
	ldr r3, [sp, 0x1C]
	cmp r2, r3
	blt _08004E00
	b _08004F7E
_08004E9C:
	adds r2, r3, 0
	adds r5, r7, 0
	ldr r7, [sp, 0x1C]
	cmp r2, r7
	bge _08004F7E
	ldr r0, [sp, 0x8]
	lsrs r0, 1
	str r0, [sp, 0x34]
	movs r0, 0x3
	ldr r1, [sp, 0x34]
	ands r1, r0
	str r1, [sp, 0x34]
_08004EB4:
	ldr r3, [sp]
	ldr r1, [r3]
	ldr r7, [sp, 0x34]
	adds r1, r7
	ldr r3, [sp, 0x8]
	lsrs r0, r3, 3
	lsls r0, 5
	adds r1, r0
	asrs r0, r2, 3
	ldr r7, [sp, 0x20]
	muls r0, r7
	lsls r0, 5
	mov r8, r0
	add r1, r8
	lsls r0, r2, 29
	lsrs r7, r0, 27
	adds r6, r1, r7
	ldr r4, [sp, 0xC]
	adds r2, 0x1
	mov r10, r2
	adds r0, r5, 0x1
	str r0, [sp, 0x38]
	ldr r1, [sp, 0x18]
	cmp r3, r1
	bge _08004F74
	asrs r0, r5, 3
	ldr r2, [sp, 0x24]
	muls r0, r2
	lsls r0, 6
	mov r9, r0
	lsls r0, r5, 29
	lsrs r0, 26
	mov r12, r0
_08004EF6:
	movs r0, 0x1
	ands r0, r3
	cmp r0, 0
	beq _08004F2A
	ldrb r2, [r6]
	movs r0, 0xF0
	ands r0, r2
	ldr r5, [sp, 0x28]
	cmp r0, r5
	beq _08004F6A
	adds r0, r4, 0
	movs r1, 0x7
	ands r0, r1
	ldr r5, [sp, 0x4]
	ldr r1, [r5]
	adds r1, r0
	asrs r0, r4, 3
	lsls r0, 6
	adds r1, r0
	add r1, r9
	mov r0, r12
	adds r5, r1, r0
	lsrs r0, r2, 4
	ldr r1, [sp, 0x14]
	adds r0, r1, r0
	b _08004F68
_08004F2A:
	asrs r2, r3, 1
	movs r0, 0x3
	ands r2, r0
	ldr r5, [sp]
	ldr r1, [r5]
	adds r1, r2
	asrs r0, r3, 3
	lsls r0, 5
	adds r1, r0
	add r1, r8
	adds r6, r1, r7
	ldrb r0, [r6]
	movs r2, 0xF
	ands r2, r0
	ldr r0, [sp, 0x10]
	cmp r2, r0
	beq _08004F6A
	adds r0, r4, 0
	movs r1, 0x7
	ands r0, r1
	ldr r5, [sp, 0x4]
	ldr r1, [r5]
	adds r1, r0
	asrs r0, r4, 3
	lsls r0, 6
	adds r1, r0
	add r1, r9
	mov r0, r12
	adds r5, r1, r0
	ldr r1, [sp, 0x14]
	adds r0, r1, r2
_08004F68:
	strb r0, [r5]
_08004F6A:
	adds r3, 0x1
	adds r4, 0x1
	ldr r2, [sp, 0x18]
	cmp r3, r2
	blt _08004EF6
_08004F74:
	mov r2, r10
	ldr r5, [sp, 0x38]
	ldr r3, [sp, 0x1C]
	cmp r2, r3
	blt _08004EB4
_08004F7E:
	add sp, 0x3C
	pop {r3-r5}
	mov r8, r3
	mov r9, r4
	mov r10, r5
	pop {r4-r7}
	pop {r0}
	bx r0
	thumb_func_end BlitBitmapRect4BitTo8Bit

	thumb_func_start FillBitmapRect8Bit
FillBitmapRect8Bit: @ 8004F90
	push {r4-r7,lr}
	mov r7, r10
	mov r6, r9
	mov r5, r8
	push {r5-r7}
	sub sp, 0x8
	mov r8, r0
	ldr r0, [sp, 0x28]
	ldr r4, [sp, 0x2C]
	lsls r1, 16
	lsrs r1, 16
	mov r10, r1
	lsls r2, 16
	lsrs r2, 16
	adds r6, r2, 0
	lsls r3, 16
	lsrs r3, 16
	lsls r0, 16
	lsrs r0, 16
	lsls r4, 24
	lsrs r4, 24
	mov r9, r4
	adds r5, r1, r3
	mov r3, r8
	ldrh r1, [r3, 0x4]
	cmp r5, r1
	ble _08004FC8
	adds r5, r1, 0
_08004FC8:
	adds r7, r2, r0
	mov r2, r8
	ldrh r0, [r2, 0x6]
	cmp r7, r0
	ble _08004FD4
	adds r7, r0, 0
_08004FD4:
	movs r0, 0x7
	ands r0, r1
	adds r0, r1, r0
	asrs r0, 3
	str r0, [sp]
	adds r1, r6, 0
	cmp r1, r7
	bge _08005024
_08004FE4:
	mov r3, r10
	adds r6, r1, 0x1
	str r6, [sp, 0x4]
	cmp r3, r5
	bge _0800501E
	movs r0, 0x7
	mov r12, r0
	asrs r0, r1, 3
	ldr r2, [sp]
	muls r0, r2
	lsls r4, r0, 6
	lsls r0, r1, 29
	lsrs r2, r0, 26
_08004FFE:
	adds r0, r3, 0
	mov r6, r12
	ands r0, r6
	mov r6, r8
	ldr r1, [r6]
	adds r1, r0
	asrs r0, r3, 3
	lsls r0, 6
	adds r1, r0
	adds r1, r4
	adds r1, r2
	mov r0, r9
	strb r0, [r1]
	adds r3, 0x1
	cmp r3, r5
	blt _08004FFE
_0800501E:
	ldr r1, [sp, 0x4]
	cmp r1, r7
	blt _08004FE4
_08005024:
	add sp, 0x8
	pop {r3-r5}
	mov r8, r3
	mov r9, r4
	mov r10, r5
	pop {r4-r7}
	pop {r0}
	bx r0
	thumb_func_end FillBitmapRect8Bit

	.align 2, 0 @ Don't pad with nop.