split out multiboot.s

1 files changed, 912 insertions, 0 deletions

diff --git a/asm/multiboot.s b/asm/multiboot.s
new file mode 100644
index 000000000..92ded3a0b
--- /dev/null
+++ b/asm/multiboot.s
@@ -0,0 +1,912 @@
+	thumb_func_start MultiBootInit
+; void MultiBootInit(MultiBootParam *mp)
+MultiBootInit: ; 81BA6D0
+	adds r2, r0, 0
+	movs r1, 0
+	strb r1, [r2, 0x1E]
+	strb r1, [r2, 0x18]
+	strb r1, [r2, 0x1D]
+	adds r3, r2, 0
+	adds r3, 0x4A
+	movs r0, 0xF
+	strb r0, [r3]
+	adds r0, r2, 0
+	adds r0, 0x48
+	strb r1, [r0]
+	strh r1, [r2, 0x16]
+	ldr r0, =0x04000134
+	strh r1, [r0]
+	ldr r2, =0x04000128
+	ldr r3, =0x00002003
+	adds r0, r3, 0
+	strh r0, [r2]
+	ldr r0, =0x0400012a
+	strh r1, [r0]
+	bx lr
+	.align 2, 0
+	.pool
+	thumb_func_end MultiBootInit
+
+	thumb_func_start MultiBootMain
+; int MultiBootMain(MultiBootParam *mp)
+MultiBootMain: ; 81BA70C
+	push {r4-r7,lr}
+	mov r7, r10
+	mov r6, r9
+	mov r5, r8
+	push {r5-r7}
+	adds r7, r0, 0
+	bl MultiBootCheckComplete
+	cmp r0, 0
+	beq @081BA722
+	b @081BAAEA
+@081BA722:
+	adds r0, r7, 0
+	adds r0, 0x4A
+	ldrb r1, [r0]
+	mov r10, r0
+	cmp r1, 0xF
+	bls @081BA736
+	subs r0, r1, 0x1
+	mov r1, r10
+	strb r0, [r1]
+	b @081BAAEA
+@081BA736:
+	adds r1, r7, 0
+	adds r1, 0x48
+	ldrb r0, [r1]
+	cmp r0, 0
+	beq @081BA760
+	movs r0, 0
+	strb r0, [r1]
+	ldr r0, =0x04000128
+	ldrh r0, [r0]
+	movs r5, 0xFC
+	ands r5, r0
+	cmp r5, 0x8
+	beq @081BA760
+	adds r0, r7, 0
+	bl MultiBootInit
+	movs r0, 0x8
+	eors r0, r5
+	b @081BAAEC
+	.align 2, 0
+	.pool
+@081BA760:
+	ldrb r0, [r7, 0x18]
+	cmp r0, 0xDF
+	bls @081BA7B2
+	adds r0, r7, 0
+	bl MultiBootHandShake
+	adds r5, r0, 0
+	cmp r5, 0
+	beq @081BA774
+	b @081BAAEC
+@081BA774:
+	adds r0, r7, 0
+	adds r0, 0x4B
+	ldrb r0, [r0]
+	cmp r0, 0x1
+	bne @081BA790
+	ldrb r0, [r7, 0x18]
+	cmp r0, 0xE1
+	bls @081BA790
+	adds r0, r7, 0
+	bl MultiBootCheckComplete
+	cmp r0, 0
+	bne @081BA790
+	b @081BAADA
+@081BA790:
+	adds r0, r7, 0
+	bl MultiBootCheckComplete
+	cmp r0, 0
+	beq @081BA79C
+	b @081BAAEA
+@081BA79C:
+	ldrh r0, [r7, 0x16]
+	cmp r0, 0
+	bne @081BA7AC
+	adds r0, r7, 0
+	bl MultiBootInit
+	movs r0, 0x71
+	b @081BAAEC
+@081BA7AC:
+	subs r0, 0x1
+	strh r0, [r7, 0x16]
+	b @081BAAEA
+@081BA7B2:
+	ldrb r0, [r7, 0x18]
+	cmp r0, 0x2
+	bne @081BA7BA
+	b @081BA8F0
+@081BA7BA:
+	cmp r0, 0x2
+	bgt @081BA7C8
+	cmp r0, 0
+	beq @081BA7D6
+	cmp r0, 0x1
+	beq @081BA892
+	b @081BAA28
+@081BA7C8:
+	cmp r0, 0xD0
+	bne @081BA7CE
+	b @081BA93C
+@081BA7CE:
+	cmp r0, 0xD1
+	bne @081BA7D4
+	b @081BA9D6
+@081BA7D4:
+	b @081BAA28
+@081BA7D6:
+	movs r3, 0xE
+	movs r5, 0x3
+	ldr r0, =0x04000120
+	ldrh r0, [r0, 0x6]
+	adds r1, r0, 0
+	ldr r0, =0x0000ffff
+	ldrb r2, [r7, 0x1E]
+	adds r6, r2, 0
+	cmp r1, r0
+	bne @081BA7FE
+	adds r4, r1, 0
+	ldr r1, =0x04000126
+@081BA7EE:
+	asrs r3, 1
+	subs r1, 0x2
+	subs r5, 0x1
+	cmp r5, 0
+	beq @081BA7FE
+	ldrh r0, [r1]
+	cmp r0, r4
+	beq @081BA7EE
+@081BA7FE:
+	movs r0, 0xE
+	ands r3, r0
+	strb r3, [r7, 0x1D]
+	movs r5, 0x3
+	ldr r0, =0x04000120
+	ldrh r0, [r0, 0x6]
+	adds r4, r0, 0
+	asrs r0, r2, 3
+	movs r1, 0x1
+	ands r0, r1
+	cmp r0, 0
+	beq @081BA82C
+	ldr r0, =0x00007208
+	b @081BA852
+	.align 2, 0
+	.pool
+@081BA82C:
+	subs r5, 0x1
+	cmp r5, 0
+	beq @081BA858
+	lsls r0, r5, 1
+	ldr r1, =0x04000120
+	adds r0, r1
+	ldrh r0, [r0]
+	adds r4, r0, 0
+	adds r0, r2, 0
+	asrs r0, r5
+	movs r1, 0x1
+	ands r0, r1
+	cmp r0, 0
+	beq @081BA82C
+	adds r0, r1, 0
+	lsls r0, r5
+	movs r1, 0xE4
+	lsls r1, 7
+	orrs r0, r1
+@081BA852:
+	cmp r4, r0
+	beq @081BA82C
+	movs r3, 0
+@081BA858:
+	adds r0, r3, 0
+	ands r0, r6
+	strb r0, [r7, 0x1E]
+	cmp r3, 0
+	bne @081BA868
+	movs r0, 0xF
+	mov r2, r10
+	strb r0, [r2]
+@081BA868:
+	mov r1, r10
+	ldrb r0, [r1]
+	cmp r0, 0
+	bne @081BA884
+	ldrb r0, [r7, 0x1D]
+	ldrb r2, [r7, 0x1E]
+	cmp r0, r2
+	beq @081BA88A
+	adds r0, r7, 0
+	bl MultiBootStartProbe
+	b @081BA892
+	.align 2, 0
+	.pool
+@081BA884:
+	subs r0, 0x1
+	mov r1, r10
+	strb r0, [r1]
+@081BA88A:
+	ldrb r1, [r7, 0x1E]
+	movs r2, 0xC4
+	lsls r2, 7
+	b @081BA992
+@081BA892:
+	adds r1, r7, 0
+	adds r1, 0x49
+	movs r0, 0
+	strb r0, [r1]
+	movs r5, 0x3
+	mov r12, r1
+	ldr r3, =0x0300129c
+@081BA8A0:
+	lsls r0, r5, 1
+	ldr r2, =0x04000120
+	adds r0, r2
+	ldrh r0, [r0]
+	adds r4, r0, 0
+	asrs r0, r4, 8
+	subs r2, r5, 0x1
+	cmp r0, 0x72
+	bne @081BA8CA
+	lsls r0, r2, 1
+	adds r0, r3
+	strh r4, [r0]
+	movs r0, 0xFF
+	ands r4, r0
+	movs r0, 0x1
+	lsls r0, r5
+	cmp r4, r0
+	bne @081BA8CA
+	ldrb r0, [r1]
+	orrs r4, r0
+	strb r4, [r1]
+@081BA8CA:
+	adds r5, r2, 0
+	cmp r5, 0
+	bne @081BA8A0
+	ldrb r0, [r7, 0x1D]
+	mov r1, r12
+	ldrb r1, [r1]
+	cmp r0, r1
+	bne @081BA88A
+	movs r0, 0x2
+	strb r0, [r7, 0x18]
+	mov r2, r12
+	ldrb r1, [r2]
+	movs r2, 0xC2
+	lsls r2, 7
+	b @081BA992
+	.align 2, 0
+	.pool
+@081BA8F0:
+	movs r5, 0x3
+	movs r0, 0x49
+	adds r0, r7
+	mov r12, r0
+	mov r4, r12
+	movs r6, 0x1
+	ldr r1, =0x0300129c
+	mov r9, r1
+	ldr r2, =0x04000120
+	mov r8, r2
+@081BA904:
+	ldrb r3, [r4]
+	adds r0, r3, 0
+	asrs r0, r5
+	ands r0, r6
+	subs r2, r5, 0x1
+	cmp r0, 0
+	beq @081BA92A
+	lsls r0, r5, 1
+	add r0, r8
+	ldrh r1, [r0]
+	lsls r0, r2, 1
+	add r0, r9
+	ldrh r0, [r0]
+	cmp r1, r0
+	beq @081BA92A
+	adds r0, r6, 0
+	lsls r0, r5
+	eors r3, r0
+	strb r3, [r4]
+@081BA92A:
+	adds r5, r2, 0
+	cmp r5, 0
+	bne @081BA904
+	b @081BAA90
+	.align 2, 0
+	.pool
+@081BA93C:
+	movs r3, 0x1
+	movs r5, 0x3
+	movs r0, 0x49
+	adds r0, r7
+	mov r12, r0
+	adds r6, r7, 0
+	adds r6, 0x19
+	ldr r1, =0x0300129c
+	mov r8, r1
+@081BA94E:
+	lsls r0, r5, 1
+	ldr r2, =0x04000120
+	adds r0, r2
+	ldrh r0, [r0]
+	adds r4, r0, 0
+	subs r2, r5, 0x1
+	adds r0, r6, r2
+	strb r4, [r0]
+	mov r0, r12
+	ldrb r1, [r0]
+	asrs r1, r5
+	movs r0, 0x1
+	ands r1, r0
+	cmp r1, 0
+	beq @081BA982
+	asrs r0, r4, 8
+	subs r0, 0x72
+	cmp r0, 0x1
+	bls @081BA976
+	b @081BAAE0
+@081BA976:
+	lsls r0, r2, 1
+	add r0, r8
+	ldrh r0, [r0]
+	cmp r4, r0
+	bne @081BA982
+	movs r3, 0
+@081BA982:
+	adds r5, r2, 0
+	cmp r5, 0
+	bne @081BA94E
+	cmp r3, 0
+	bne @081BA9A8
+	ldrb r1, [r7, 0x1C]
+	movs r2, 0xC6
+	lsls r2, 7
+@081BA992:
+	adds r0, r2, 0
+	orrs r1, r0
+	adds r0, r7, 0
+	bl MultiBootSend
+	b @081BAAEC
+	.align 2, 0
+	.pool
+@081BA9A8:
+	movs r0, 0xD1
+	strb r0, [r7, 0x18]
+	movs r3, 0x11
+	movs r5, 0x3
+	adds r1, r6, 0x2
+@081BA9B2:
+	ldrb r0, [r1]
+	adds r3, r0
+	subs r1, 0x1
+	subs r5, 0x1
+	cmp r5, 0
+	bne @081BA9B2
+	strb r3, [r7, 0x14]
+	movs r0, 0xFF
+	ands r3, r0
+	movs r1, 0xC8
+	lsls r1, 7
+	adds r0, r1, 0
+	orrs r3, r0
+	adds r0, r7, 0
+	adds r1, r3, 0
+	bl MultiBootSend
+	b @081BAAEC
+@081BA9D6:
+	movs r5, 0x3
+	movs r2, 0x49
+	ldrb r1, [r2, r7]
+	ldr r2, =0x04000126
+	movs r3, 0x1
+@081BA9E0:
+	ldrh r0, [r2]
+	adds r4, r0, 0
+	adds r0, r1, 0
+	asrs r0, r5
+	ands r0, r3
+	cmp r0, 0
+	beq @081BA9F4
+	asrs r0, r4, 8
+	cmp r0, 0x73
+	bne @081BAAE0
+@081BA9F4:
+	subs r2, 0x2
+	subs r5, 0x1
+	cmp r5, 0
+	bne @081BA9E0
+	adds r0, r7, 0
+	bl MultiBoot
+	adds r5, r0, 0
+	cmp r5, 0
+	bne @081BAA18
+	movs r0, 0xE0
+	strb r0, [r7, 0x18]
+	adds r0, 0xB0
+	strh r0, [r7, 0x16]
+	b @081BAAEA
+	.align 2, 0
+	.pool
+@081BAA18:
+	adds r0, r7, 0
+	bl MultiBootInit
+	movs r0, 0x1E
+	mov r1, r10
+	strb r0, [r1]
+	movs r0, 0x70
+	b @081BAAEC
+@081BAA28:
+	movs r5, 0x3
+	movs r2, 0x49
+	adds r2, r7
+	mov r12, r2
+	mov r8, r12
+	movs r0, 0x1
+	mov r9, r0
+@081BAA36:
+	mov r1, r8
+	ldrb r6, [r1]
+	adds r0, r6, 0
+	asrs r0, r5
+	mov r2, r9
+	ands r0, r2
+	cmp r0, 0
+	beq @081BAA70
+	lsls r0, r5, 1
+	ldr r1, =0x04000120
+	adds r0, r1
+	ldrh r0, [r0]
+	adds r4, r0, 0
+	asrs r2, r4, 8
+	ldrb r0, [r7, 0x18]
+	lsrs r0, 1
+	movs r1, 0x62
+	subs r1, r0
+	mov r3, r9
+	lsls r3, r5
+	cmp r2, r1
+	bne @081BAA6A
+	movs r0, 0xFF
+	ands r4, r0
+	cmp r4, r3
+	beq @081BAA70
+@081BAA6A:
+	eors r6, r3
+	mov r2, r8
+	strb r6, [r2]
+@081BAA70:
+	subs r5, 0x1
+	cmp r5, 0
+	bne @081BAA36
+	ldrb r0, [r7, 0x18]
+	cmp r0, 0xC4
+	bne @081BAA90
+	mov r0, r12
+	ldrb r1, [r0]
+	movs r0, 0xE
+	ands r0, r1
+	strb r0, [r7, 0x1E]
+	strb r5, [r7, 0x18]
+	b @081BA88A
+	.align 2, 0
+	.pool
+@081BAA90:
+	mov r1, r12
+	ldrb r0, [r1]
+	cmp r0, 0
+	bne @081BAAA2
+	adds r0, r7, 0
+	bl MultiBootInit
+	movs r0, 0x50
+	b @081BAAEC
+@081BAAA2:
+	ldrb r0, [r7, 0x18]
+	adds r0, 0x2
+	strb r0, [r7, 0x18]
+	lsls r0, 24
+	lsrs r0, 24
+	cmp r0, 0xC4
+	bne @081BAAB2
+	b @081BA88A
+@081BAAB2:
+	ldrb r0, [r7, 0x18]
+	ldr r1, [r7, 0x28]
+	adds r0, r1
+	subs r1, r0, 0x3
+	ldrb r2, [r1]
+	lsls r2, 8
+	subs r0, 0x4
+	ldrb r1, [r0]
+	orrs r1, r2
+	adds r0, r7, 0
+	bl MultiBootSend
+	adds r5, r0, 0
+	cmp r5, 0
+	bne @081BAAEC
+	adds r0, r7, 0
+	adds r0, 0x4B
+	ldrb r0, [r0]
+	cmp r0, 0x1
+	bne @081BAAEA
+@081BAADA:
+	bl MultiBootWaitSendDone
+	b @081BA736
+@081BAAE0:
+	adds r0, r7, 0
+	bl MultiBootInit
+	movs r0, 0x60
+	b @081BAAEC
+@081BAAEA:
+	movs r0, 0
+@081BAAEC:
+	pop {r3-r5}
+	mov r8, r3
+	mov r9, r4
+	mov r10, r5
+	pop {r4-r7}
+	pop {r1}
+	bx r1
+	thumb_func_end MultiBootMain
+
+	thumb_func_start MultiBootSend
+; int MultiBootSend(MultiBootParam *mp, u16 data)
+MultiBootSend: ; 81BAAFC
+	push {r4,lr}
+	adds r2, r0, 0
+	lsls r1, 16
+	lsrs r1, 16
+	ldr r3, =0x04000128
+	ldrh r0, [r3]
+	movs r4, 0x8C
+	ands r4, r0
+	cmp r4, 0x8
+	bne @081BAB34
+	ldr r0, =0x0400012a
+	strh r1, [r0]
+	ldr r1, =0x00002083
+	adds r0, r1, 0
+	strh r0, [r3]
+	adds r1, r2, 0
+	adds r1, 0x48
+	movs r0, 0x1
+	strb r0, [r1]
+	movs r0, 0
+	b @081BAB40
+	.align 2, 0
+	.pool
+@081BAB34:
+	adds r0, r2, 0
+	bl MultiBootInit
+	movs r0, 0x8
+	eors r4, r0
+	adds r0, r4, 0
+@081BAB40:
+	pop {r4}
+	pop {r1}
+	bx r1
+	thumb_func_end MultiBootSend
+
+	thumb_func_start MultiBootStartProbe
+; void MultiBootStartProbe(MultiBootParam *mp)
+MultiBootStartProbe: ; 81BAB48
+	push {lr}
+	adds r1, r0, 0
+	ldrb r0, [r1, 0x18]
+	cmp r0, 0
+	beq @081BAB5A
+	adds r0, r1, 0
+	bl MultiBootInit
+	b @081BAB66
+@081BAB5A:
+	adds r2, r1, 0
+	adds r2, 0x4A
+	strb r0, [r2]
+	strb r0, [r1, 0x1E]
+	movs r0, 0x1
+	strb r0, [r1, 0x18]
+@081BAB66:
+	pop {r0}
+	bx r0
+	thumb_func_end MultiBootStartProbe
+
+	thumb_func_start MultiBootStartMaster
+; void MultiBootStartMaster(MultiBootParam *mp, u8 *srcp, int length, u8 palette_color, s8 palette_speed)
+MultiBootStartMaster: ; 81BAB6C
+	push {r4-r7,lr}
+	adds r4, r0, 0
+	adds r6, r1, 0
+	ldr r0, [sp, 0x14]
+	lsls r3, 24
+	lsrs r5, r3, 24
+	lsls r0, 24
+	lsrs r7, r0, 24
+	movs r3, 0
+	ldrb r0, [r4, 0x18]
+	cmp r0, 0
+	bne @081BABA8
+	ldrb r0, [r4, 0x1E]
+	cmp r0, 0
+	beq @081BABA8
+	adds r0, r4, 0
+	adds r0, 0x4A
+	ldrb r0, [r0]
+	cmp r0, 0
+	bne @081BABA8
+	str r6, [r4, 0x20]
+	adds r2, 0xF
+	movs r0, 0x10
+	negs r0, r0
+	ands r2, r0
+	subs r0, 0xF0
+	adds r1, r2, r0
+	ldr r0, =0x0003ff00
+	cmp r1, r0
+	bls @081BABB4
+@081BABA8:
+	adds r0, r4, 0
+	bl MultiBootInit
+	b @081BAC28
+	.align 2, 0
+	.pool
+@081BABB4:
+	adds r0, r6, r2
+	str r0, [r4, 0x24]
+	lsls r1, r7, 24
+	movs r2, 0x80
+	lsls r2, 19
+	adds r0, r1, r2
+	asrs r0, 24
+	adds r2, r1, 0
+	cmp r0, 0x8
+	bhi @081BAC14
+	lsls r0, 2
+	ldr r1, =@081BABD8
+	adds r0, r1
+	ldr r0, [r0]
+	mov pc, r0
+	.align 2, 0
+	.pool
+	.align 2, 0
+@081BABD8:
+	.4byte @081BABFC
+	.4byte @081BABFC
+	.4byte @081BABFC
+	.4byte @081BABFC
+	.4byte @081BAC06
+	.4byte @081BAC0C
+	.4byte @081BAC0C
+	.4byte @081BAC0C
+	.4byte @081BAC0C
+@081BABFC:
+	lsls r3, r5, 3
+	asrs r1, r2, 24
+	movs r0, 0x3
+	subs r0, r1
+	b @081BAC12
+@081BAC06:
+	movs r0, 0x38
+	adds r3, r5, 0
+	b @081BAC12
+@081BAC0C:
+	lsls r3, r5, 3
+	asrs r0, r2, 24
+	subs r0, 0x1
+@081BAC12:
+	orrs r3, r0
+@081BAC14:
+	movs r0, 0x3F
+	ands r3, r0
+	lsls r0, r3, 1
+	movs r2, 0x7F
+	negs r2, r2
+	adds r1, r2, 0
+	orrs r0, r1
+	strb r0, [r4, 0x1C]
+	movs r0, 0xD0
+	strb r0, [r4, 0x18]
+@081BAC28:
+	pop {r4-r7}
+	pop {r0}
+	bx r0
+	thumb_func_end MultiBootStartMaster
+
+	thumb_func_start MultiBootCheckComplete
+; s32 MultiBootCheckComplete(MultiBootParam *mp)
+MultiBootCheckComplete: ; 81BAC30
+	push {lr}
+	ldrb r0, [r0, 0x18]
+	cmp r0, 0xE9
+	beq @081BAC3C
+	movs r0, 0
+	b @081BAC3E
+@081BAC3C:
+	movs r0, 0x1
+@081BAC3E:
+	pop {r1}
+	bx r1
+	thumb_func_end MultiBootCheckComplete
+
+	thumb_func_start MultiBootHandShake
+; int MultiBootHandShake(MultiBootParam *mp)
+MultiBootHandShake: ; 81BAC44
+	push {r4-r6,lr}
+	adds r3, r0, 0
+	ldrb r0, [r3, 0x18]
+	cmp r0, 0xE0
+	beq @081BAC60
+	cmp r0, 0xE0
+	blt @081BAC70
+	cmp r0, 0xE8
+	bgt @081BAC70
+	cmp r0, 0xE7
+	blt @081BAC70
+	movs r4, 0x3
+	ldrb r5, [r3, 0x1E]
+	b @081BACD0
+@081BAC60:
+	movs r1, 0
+	movs r0, 0xE1
+	strb r0, [r3, 0x18]
+	str r1, [r3, 0x4]
+	movs r0, 0x80
+	lsls r0, 13
+	str r0, [r3]
+	b @081BACC2
+@081BAC70:
+	movs r4, 0x3
+	ldrb r5, [r3, 0x1E]
+	movs r6, 0x1
+	ldr r1, =0x04000126
+@081BAC78:
+	ldrh r0, [r1]
+	adds r2, r0, 0
+	adds r0, r5, 0
+	asrs r0, r4
+	ands r0, r6
+	cmp r0, 0
+	beq @081BAC8C
+	ldr r0, [r3, 0x4]
+	cmp r2, r0
+	bne @081BAC60
+@081BAC8C:
+	subs r1, 0x2
+	subs r4, 0x1
+	cmp r4, 0
+	bne @081BAC78
+	ldrb r0, [r3, 0x18]
+	adds r0, 0x1
+	strb r0, [r3, 0x18]
+	ldr r1, [r3]
+	ldrh r0, [r3]
+	str r0, [r3, 0x4]
+	cmp r1, 0
+	bne @081BACBA
+	ldr r0, [r3, 0x28]
+	adds r1, r0, 0
+	adds r1, 0xAC
+	ldrb r1, [r1]
+	adds r0, 0xAD
+	ldrb r0, [r0]
+	lsls r0, 8
+	orrs r1, r0
+	str r1, [r3, 0x4]
+	lsls r1, 5
+	str r1, [r3]
+@081BACBA:
+	ldr r0, [r3]
+	lsrs r0, 5
+	str r0, [r3]
+@081BACC0:
+	ldrh r1, [r3]
+@081BACC2:
+	adds r0, r3, 0
+	bl MultiBootSend
+	b @081BAD28
+	.align 2, 0
+	.pool
+@081BACD0:
+	lsls r0, r4, 1
+	ldr r1, =0x04000120
+	adds r0, r1
+	ldrh r0, [r0]
+	adds r2, r0, 0
+	adds r0, r5, 0
+	asrs r0, r4
+	movs r1, 0x1
+	ands r0, r1
+	cmp r0, 0
+	beq @081BACEC
+	ldr r0, [r3, 0x4]
+	cmp r2, r0
+	bne @081BAD1C
+@081BACEC:
+	subs r4, 0x1
+	cmp r4, 0
+	bne @081BACD0
+	ldrb r0, [r3, 0x18]
+	adds r0, 0x1
+	strb r0, [r3, 0x18]
+	lsls r0, 24
+	lsrs r0, 24
+	cmp r0, 0xE9
+	beq @081BAD26
+	ldr r0, [r3, 0x28]
+	adds r1, r0, 0
+	adds r1, 0xAE
+	ldrb r1, [r1]
+	adds r0, 0xAF
+	ldrb r0, [r0]
+	lsls r0, 8
+	orrs r1, r0
+	str r1, [r3]
+	str r1, [r3, 0x4]
+	b @081BACC0
+	.align 2, 0
+	.pool
+@081BAD1C:
+	adds r0, r3, 0
+	bl MultiBootInit
+	movs r0, 0x71
+	b @081BAD28
+@081BAD26:
+	movs r0, 0
+@081BAD28:
+	pop {r4-r6}
+	pop {r1}
+	bx r1
+	thumb_func_end MultiBootHandShake
+
+	thumb_func_start MultiBootWaitCycles
+; void MultiBootWaitCycles(u32 cycles)
+MultiBootWaitCycles: ; 81BAD30
+	mov r2, pc
+	lsrs r2, 24
+	movs r1, 0xC
+	cmp r2, 0x2
+	beq @081BAD42
+	movs r1, 0xD
+	cmp r2, 0x8
+	beq @081BAD42
+	movs r1, 0x4
+@081BAD42:
+	subs r0, r1
+	bgt @081BAD42
+	bx lr
+	thumb_func_end MultiBootWaitCycles
+
+	thumb_func_start MultiBootWaitSendDone
+; void MultiBootWaitSendDone(void)
+MultiBootWaitSendDone: ; 81BAD48
+	push {r4,r5,lr}
+	movs r2, 0
+	ldr r3, =0x04000128
+	ldrh r1, [r3]
+	movs r0, 0x80
+	ands r0, r1
+	cmp r0, 0
+	beq @081BAD6C
+	ldr r5, =0x0000795c
+	movs r4, 0x80
+@081BAD5C:
+	adds r2, 0x1
+	cmp r2, r5
+	bgt @081BAD6C
+	ldrh r1, [r3]
+	adds r0, r4, 0
+	ands r0, r1
+	cmp r0, 0
+	bne @081BAD5C
+@081BAD6C:
+	movs r0, 0x96
+	lsls r0, 2
+	bl MultiBootWaitCycles
+	pop {r4,r5}
+	pop {r0}
+	bx r0
+	.align 2, 0
+	.pool
+	thumb_func_end MultiBootWaitSendDone