sm64/asm/boot.s

# assembler directives
.set noat      # allow manual use of $at
.set noreorder # don't insert nops after branches
.set gp=64

.include "macros.inc"

# 0xA0000000-0xBFFFFFFF: KSEG1 direct map non-cache mirror of 0x00000000
# 0xA4000000-0xA4000FFF: RSP DMEM

# 0xA4000000-0xA400003F: ROM header

.section .text, "ax"

# 0xA4000040-0xA4000B6F: IPL3

# IPL3 entry point jumped to from IPL2
glabel ipl3_entry # 0xA4000040
    mtc0  $zero, $13
    mtc0  $zero, $9
    mtc0  $zero, $11
    lui   $t0, %hi(RI_MODE_REG)
    addiu $t0, %lo(RI_MODE_REG)
    lw    $t1, 0xc($t0)
    bnez  $t1, .LA4000410
     nop
    addiu $sp, $sp, -0x18
    sw    $s3, ($sp)
    sw    $s4, 4($sp)
    sw    $s5, 8($sp)
    sw    $s6, 0xc($sp)
    sw    $s7, 0x10($sp)
    lui   $t0, %hi(RI_MODE_REG)
    addiu $t0, %lo(RI_MODE_REG)
    lui   $t2, (0xa3f80000 >> 16)
    lui   $t3, (0xa3f00000 >> 16)
    lui   $t4, %hi(MI_MODE_REG)
    addiu $t4, %lo(MI_MODE_REG)
    ori   $t1, $zero, 64
    sw    $t1, 4($t0)
    li   $s1, 8000
.LA400009C:
    nop
    addi  $s1, $s1, -1
    bnez  $s1, .LA400009C
     nop
    sw    $zero, 8($t0)
    ori   $t1, $zero, 20
    sw    $t1, 0xc($t0)
    sw    $zero, ($t0)
    li    $s1, 4
.LA40000C0:
    nop
    addi  $s1, $s1, -1
    bnez  $s1, .LA40000C0
     nop
    ori   $t1, $zero, 14
    sw    $t1, ($t0)
    li    $s1, 32
.LA40000DC:
    addi  $s1, $s1, -1
    bnez  $s1, .LA40000DC
    ori   $t1, $zero, 271
    sw    $t1, ($t4)
    lui   $t1, (0x18082838 >> 16)
    ori   $t1, (0x18082838 & 0xFFFF)
    sw    $t1, 0x8($t2)
    sw    $zero, 0x14($t2)
    lui   $t1, 0x8000
    sw    $t1, 0x4($t2)
    move  $t5, $zero
    move  $t6, $zero
    lui   $t7, (0xA3F00000 >> 16)
    move  $t8, $zero
    lui   $t9, (0xA3F00000 >> 16)
    lui   $s6, (0xA0000000 >> 16)
    move  $s7, $zero
    lui   $a2, (0xA3F00000 >> 16)
    lui   $a3, (0xA0000000 >> 16)
    move  $s2, $zero
    lui   $s4, (0xA0000000 >> 16)
    addiu $sp, $sp, -0x48
    move  $fp, $sp
    lui   $s0, %hi(MI_VERSION_REG)
    lw    $s0, %lo(MI_VERSION_REG)($s0)
    lui   $s1, (0x01010101 >> 16)
    addiu $s1, (0x01010101 & 0xFFFF)
    bne   $s0, $s1, .LA4000160
     nop
    li    $s0, 512
    ori   $s1, $t3, 0x4000
    b     .LA4000168
     nop
.LA4000160:
    li    $s0, 1024
    ori   $s1, $t3, 0x8000
.LA4000168:
    sw    $t6, 4($s1)
    addiu $s5, $t7, 0xc
    jal   func_A4000778
     nop
    beqz  $v0, .LA400025C
     nop
    sw    $v0, ($sp)
    li    $t1, 8192
    sw    $t1, ($t4)
    lw    $t3, ($t7)
    lui   $t0, 0xf0ff
    and   $t3, $t3, $t0
    sw    $t3, 4($sp)
    addi  $sp, $sp, 8
    li    $t1, 4096
    sw    $t1, ($t4)
    lui   $t0, 0xb019
    bne   $t3, $t0, .LA40001E0
     nop
    lui   $t0, 0x800
    add   $t8, $t8, $t0
    add   $t9, $t9, $s0
    add   $t9, $t9, $s0
    lui   $t0, 0x20
    add   $s6, $s6, $t0
    add   $s4, $s4, $t0
    sll   $s2, $s2, 1
    addi  $s2, $s2, 1
    b     .LA40001E8
     nop
.LA40001E0:
    lui   $t0, 0x10
    add   $s4, $s4, $t0
.LA40001E8:
    li    $t0, 8192
    sw    $t0, ($t4)
    lw    $t1, 0x24($t7)
    lw    $k0, ($t7)
    li    $t0, 4096
    sw    $t0, ($t4)
    andi  $t1, $t1, 0xffff
    li    $t0, 1280
    bne   $t1, $t0, .LA4000230
     nop
    lui   $k1, 0x100
    and   $k0, $k0, $k1
    bnez  $k0, .LA4000230
     nop
    lui   $t0, (0x101C0A04 >> 16)
    ori   $t0, (0x101C0A04 & 0xFFFF)
    sw    $t0, 0x18($t7)
    b     .LA400023C
.LA4000230:
     lui   $t0, (0x080C1204 >> 16)
    ori   $t0, (0x080C1204 & 0xFFFF)
    sw    $t0, 0x18($t7)
.LA400023C:
    lui   $t0, 0x800
    add   $t6, $t6, $t0
    add   $t7, $t7, $s0
    add   $t7, $t7, $s0
    addiu $t5, $t5, 1
    sltiu $t0, $t5, 8
    bnez  $t0, .LA4000168
     nop
.LA400025C:
    li    $t0, 0xc4000000
    sw    $t0, 0xc($t2)
    li    $t0, 0x80000000
    sw    $t0, 0x4($t2)
    move  $sp, $fp
    move  $v1, $zero
.LA4000274:
    lw    $t1, 4($sp)
    lui   $t0, 0xb009
    bne   $t1, $t0, .LA40002D8
     nop
    sw    $t8, 4($s1)
    addiu $s5, $t9, 0xc
    lw    $a0, ($sp)
    addi  $sp, $sp, 8
    li    $a1, 1
    jal   func_A4000A40
     nop
    lw    $t0, ($s6)
    lui   $t0, 8
    add   $t0, $t0, $s6
    lw    $t1, ($t0)
    lw    $t0, ($s6)
    lui   $t0, 8
    add   $t0, $t0, $s6
    lw    $t1, ($t0)
    lui   $t0, 0x400
    add   $t6, $t6, $t0
    add   $t9, $t9, $s0
    lui   $t0, 0x10
    add   $s6, $s6, $t0
    b     .LA400035C
.LA40002D8:
     sw    $s7, 4($s1)
    addiu $s5, $a2, 0xc
    lw    $a0, ($sp)
    addi  $sp, $sp, 8
    li    $a1, 1
    jal   func_A4000A40
     nop
    lw    $t0, ($a3)
    lui   $t0, 8
    add   $t0, $t0, $a3
    lw    $t1, ($t0)
    lui   $t0, 0x10
    add   $t0, $t0, $a3
    lw    $t1, ($t0)
    lui   $t0, 0x18
    add   $t0, $t0, $a3
    lw    $t1, ($t0)
    lw    $t0, ($a3)
    lui   $t0, 8
    add   $t0, $t0, $a3
    lw    $t1, ($t0)
    lui   $t0, 0x10
    add   $t0, $t0, $a3
    lw    $t1, ($t0)
    lui   $t0, 0x18
    add   $t0, $t0, $a3
    lw    $t1, ($t0)
    lui   $t0, 0x800
    add   $s7, $s7, $t0
    add   $a2, $a2, $s0
    add   $a2, $a2, $s0
    lui   $t0, 0x20
    add   $a3, $a3, $t0
.LA400035C:
    addiu $v1, $v1, 1
    slt   $t0, $v1, $t5
    bnez  $t0, .LA4000274
     nop
    lui   $t2, %hi(RI_REFRESH_REG)
    sll   $s2, $s2, 0x13
    lui   $t1, (0x00063634 >> 16)
    ori   $t1, (0x00063634 & 0xFFFF)
    or    $t1, $t1, $s2
    sw    $t1, %lo(RI_REFRESH_REG)($t2)
    lw    $t1, %lo(RI_REFRESH_REG)($t2)
    lui   $t0, (0xA0000300 >> 16)
    ori   $t0, (0xA0000300 & 0xFFFF)
    lui   $t1, (0x0FFFFFFF >> 16)
    ori   $t1, (0x0FFFFFFF & 0xFFFF)
    and   $s6, $s6, $t1
    sw    $s6, 0x18($t0)
    move  $sp, $fp
    addiu $sp, $sp, 0x48
    lw    $s3, ($sp)
    lw    $s4, 4($sp)
    lw    $s5, 8($sp)
    lw    $s6, 0xc($sp)
    lw    $s7, 0x10($sp)
    addiu $sp, $sp, 0x18
    lui   $t0, %hi(EXCEPTION_TLB_MISS)
    addiu $t0, $t0, %lo(EXCEPTION_TLB_MISS)
    addiu $t1, $t0, 0x4000
    addiu $t1, $t1, -0x20
    mtc0  $zero, $28
    mtc0  $zero, $29
.LA40003D8:
    cache 8, ($t0)
    sltu  $at, $t0, $t1
    bnez  $at, .LA40003D8
     addiu $t0, $t0, 0x20
    lui   $t0, %hi(EXCEPTION_TLB_MISS)
    addiu $t0, %lo(EXCEPTION_TLB_MISS)
    addiu $t1, $t0, 0x2000
    addiu $t1, $t1, -0x10
.LA40003F8:
    cache 9, ($t0)
    sltu  $at, $t0, $t1
    bnez  $at, .LA40003F8
     addiu $t0, $t0, 0x10
    b     .LA4000458
     nop
.LA4000410:
    lui   $t0, %hi(EXCEPTION_TLB_MISS)
    addiu $t0, %lo(EXCEPTION_TLB_MISS)
    addiu $t1, $t0, 0x4000
    addiu $t1, $t1, -0x20
    mtc0  $zero, $28
    mtc0  $zero, $29
.LA4000428:
    cache 8, ($t0)
    sltu  $at, $t0, $t1
    bnez  $at, .LA4000428
     addiu $t0, $t0, 0x20
    lui   $t0, %hi(EXCEPTION_TLB_MISS)
    addiu $t0, %lo(EXCEPTION_TLB_MISS)
    addiu $t1, $t0, 0x2000
    addiu $t1, $t1, -0x10
.LA4000448:
    cache 1, ($t0)
    sltu  $at, $t0, $t1
    bnez  $at, .LA4000448
     addiu $t0, $t0, 0x10
.LA4000458:
    lui   $t2, %hi(SP_DMEM)
    addiu $t2, $t2, %lo(SP_DMEM)
    lui   $t3, 0xfff0
    lui   $t1, 0x0010
    and   $t2, $t2, $t3
    lui   $t0, %hi(SP_DMEM_UNK0)
    addiu $t1, -1
    lui   $t3, %hi(SP_DMEM_UNK1)
    addiu $t0, %lo(SP_DMEM_UNK0)
    addiu $t3, %lo(SP_DMEM_UNK1)
    and   $t0, $t0, $t1
    and   $t3, $t3, $t1
    lui   $t1, 0xa000
    or    $t0, $t0, $t2
    or    $t3, $t3, $t2
    addiu $t1, $t1, 0
.LA4000498:
    lw    $t5, ($t0)
    addiu $t0, $t0, 4
    sltu  $at, $t0, $t3
    addiu $t1, $t1, 4
    bnez  $at, .LA4000498
     sw    $t5, -4($t1)
    lui   $t4, %hi(EXCEPTION_TLB_MISS)
    addiu $t4, %lo(EXCEPTION_TLB_MISS)
    jr    $t4
     nop
    lui   $t3, %hi(D_B0000008)
    lw    $t1, %lo(D_B0000008)($t3)
    lui   $t2, (0x1FFFFFFF >> 16)
    ori   $t2, (0x1FFFFFFF & 0xFFFF)
    lui   $at, %hi(PI_DRAM_ADDR_REG)
    and   $t1, $t1, $t2
    sw    $t1, %lo(PI_DRAM_ADDR_REG)($at)
    lui   $t0, %hi(PI_STATUS_REG)
.LA40004D0:
    lw    $t0, %lo(PI_STATUS_REG)($t0)
    andi  $t0, $t0, 2
    bnezl $t0, .LA40004D0
     lui   $t0, %hi(PI_STATUS_REG)
    li    $t0, 0x1000
    add   $t0, $t0, $t3
    and   $t0, $t0, $t2
    lui   $at, %hi(PI_CART_ADDR_REG)
    sw    $t0, %lo(PI_CART_ADDR_REG)($at)
    lui   $t2, 0x0010
    addiu $t2, 0xFFFF
    lui   $at, %hi(PI_WR_LEN_REG)
    sw    $t2, %lo(PI_WR_LEN_REG)($at)

.LA4000514:
    nop
    nop
    nop
    nop
    nop
    nop
    nop
    nop
    nop
    nop
    nop
    nop
    nop
    nop
    nop
    nop
    nop
    nop
    nop
    nop
    nop
    nop
    nop
    nop
    nop
    nop
    nop
    nop
    lui   $t3, %hi(PI_STATUS_REG)
    lw    $t3, %lo(PI_STATUS_REG)($t3)
    andi  $t3, $t3, 0x1
    bnez  $t3, .LA4000514
     nop
    lui   $t3, %hi(D_B0000008)
    lw    $a0, %lo(D_B0000008)($t3)
    move  $a1, $s6
    lui   $at, (0x5D588B65 >> 16)
    ori   $at, (0x5D588B65 & 0xFFFF)
    multu $a1, $at
    addiu $sp, $sp, -0x20
    sw    $ra, 0x1c($sp)
    sw    $s0, 0x14($sp)
    lui   $ra, 0x10
    move  $v1, $zero
    move  $t0, $zero
    move  $t1, $a0
    li    $t5, 32
    mflo  $v0
    addiu $v0, $v0, 1
    move  $a3, $v0
    move  $t2, $v0
    move  $t3, $v0
    move  $s0, $v0
    move  $a2, $v0
    move  $t4, $v0
.LA40005F0:
    lw    $v0, ($t1)
    addu  $v1, $a3, $v0
    sltu  $at, $v1, $a3
    beqz  $at, .LA4000608
     move  $a1, $v1
    addiu $t2, $t2, 1
.LA4000608:
    andi  $v1, $v0, 0x1f
    subu  $t7, $t5, $v1
    srlv  $t8, $v0, $t7
    sllv  $t6, $v0, $v1
    or    $a0, $t6, $t8
    sltu  $at, $a2, $v0
    move  $a3, $a1
    xor   $t3, $t3, $v0
    beqz  $at, .LA400063C
     addu  $s0, $s0, $a0
    xor   $t9, $a3, $v0
    b     .LA4000640
     xor   $a2, $t9, $a2
.LA400063C:
    xor   $a2, $a2, $a0
.LA4000640:
    addiu $t0, $t0, 4
    xor   $t7, $v0, $s0
    addiu $t1, $t1, 4
    bne   $t0, $ra, .LA40005F0
     addu  $t4, $t7, $t4
    xor   $t6, $a3, $t2
    xor   $a3, $t6, $t3
    xor   $t8, $s0, $a2
    xor   $s0, $t8, $t4
    lui   $t3, %hi(D_B0000010)
    lw    $t0, %lo(D_B0000010)($t3)
    bne   $a3, $t0, halt
     nop
    lw    $t0, %lo(D_B0000014)($t3)
    bne   $s0, $t0, halt
     nop
    bal   func_A4000690
     nop

halt:
    bal   halt
     nop

func_A4000690:
    lui   $t1, %hi(SP_PC)
    lw    $t1, %lo(SP_PC)($t1)
    lw    $s0, 0x14($sp)
    lw    $ra, 0x1c($sp)
    beqz  $t1, .LA40006BC
     addiu $sp, $sp, 0x20
    li    $t2, 65
    lui   $at, %hi(SP_STATUS_REG)
    sw    $t2, %lo(SP_STATUS_REG)($at)
    lui   $at, %hi(SP_PC)
    sw    $zero, %lo(SP_PC)($at)
.LA40006BC:
    lui   $t3, (0x00AAAAAE >> 16)
    ori   $t3, (0x00AAAAAE & 0xFFFF)
    lui   $at, %hi(SP_STATUS_REG)
    sw    $t3, %lo(SP_STATUS_REG)($at)
    lui   $at, %hi(MI_INTR_MASK_REG)
    li    $t0, 1365
    sw    $t0, %lo(MI_INTR_MASK_REG)($at)
    lui   $at, %hi(SI_STATUS_REG)
    sw    $zero, %lo(SI_STATUS_REG)($at)
    lui   $at, %hi(AI_STATUS_REG)
    sw    $zero, %lo(AI_STATUS_REG)($at)
    lui   $at, %hi(MI_MODE_REG)
    li    $t1, 2048
    sw    $t1, %lo(MI_MODE_REG)($at)
    li    $t1, 2
    lui   $at, %hi(PI_STATUS_REG)
    lui   $t0, (0xA0000300 >> 16)
    ori   $t0, (0xA0000300 & 0xFFFF)
    sw    $t1, %lo(PI_STATUS_REG)($at)
    sw    $s7, 0x14($t0)
    sw    $s5, 0xc($t0)
    sw    $s3, 0x4($t0)
    beqz  $s3, .LA4000728
     sw    $s4, ($t0)
    lui   $t1, 0xa600
    b     .LA4000730
     addiu $t1, $t1, 0
.LA4000728:
    lui   $t1, 0xb000
    addiu $t1, $t1, 0
.LA4000730:
    sw    $t1, 0x8($t0)
    lui   $t0, %hi(SP_DMEM)
    addiu $t0, %lo(SP_DMEM)
    addi  $t1, $t0, 0x1000
.LA4000740:
    addiu $t0, $t0, 4
    bne   $t0, $t1, .LA4000740
     sw    $zero, -4($t0)
    lui   $t0, %hi(SP_IMEM)
    addiu $t0, %lo(SP_IMEM)
    addi  $t1, $t0, 0x1000
.LA4000758:
    addiu $t0, $t0, 4
    bne   $t0, $t1, .LA4000758
     sw    $zero, -4($t0)
    lui   $t3, %hi(D_B0000008)
    lw    $t1, %lo(D_B0000008)($t3)
    jr    $t1
     nop
    nop

func_A4000778:
    addiu $sp, $sp, -0xa0
    sw    $s0, 0x40($sp)
    sw    $s1, 0x44($sp)
    move  $s1, $zero
    move  $s0, $zero
    sw    $v0, ($sp)
    sw    $v1, 4($sp)
    sw    $a0, 8($sp)
    sw    $a1, 0xc($sp)
    sw    $a2, 0x10($sp)
    sw    $a3, 0x14($sp)
    sw    $t0, 0x18($sp)
    sw    $t1, 0x1c($sp)
    sw    $t2, 0x20($sp)
    sw    $t3, 0x24($sp)
    sw    $t4, 0x28($sp)
    sw    $t5, 0x2c($sp)
    sw    $t6, 0x30($sp)
    sw    $t7, 0x34($sp)
    sw    $t8, 0x38($sp)
    sw    $t9, 0x3c($sp)
    sw    $s2, 0x48($sp)
    sw    $s3, 0x4c($sp)
    sw    $s4, 0x50($sp)
    sw    $s5, 0x54($sp)
    sw    $s6, 0x58($sp)
    sw    $s7, 0x5c($sp)
    sw    $fp, 0x60($sp)
    sw    $ra, 0x64($sp)
.LA40007EC:
    jal   func_A4000880
     nop
    addiu $s0, $s0, 1
    slti  $t1, $s0, 4
    bnez  $t1, .LA40007EC
     addu  $s1, $s1, $v0
    srl   $a0, $s1, 2
    jal   func_A4000A40
     li    $a1, 1
    lw    $ra, 0x64($sp)
    srl   $v0, $s1, 2
    lw    $s1, 0x44($sp)
    lw    $v1, 4($sp)
    lw    $a0, 8($sp)
    lw    $a1, 0xc($sp)
    lw    $a2, 0x10($sp)
    lw    $a3, 0x14($sp)
    lw    $t0, 0x18($sp)
    lw    $t1, 0x1c($sp)
    lw    $t2, 0x20($sp)
    lw    $t3, 0x24($sp)
    lw    $t4, 0x28($sp)
    lw    $t5, 0x2c($sp)
    lw    $t6, 0x30($sp)
    lw    $t7, 0x34($sp)
    lw    $t8, 0x38($sp)
    lw    $t9, 0x3c($sp)
    lw    $s0, 0x40($sp)
    lw    $s2, 0x48($sp)
    lw    $s3, 0x4c($sp)
    lw    $s4, 0x50($sp)
    lw    $s5, 0x54($sp)
    lw    $s6, 0x58($sp)
    lw    $s7, 0x5c($sp)
    lw    $fp, 0x60($sp)
    jr    $ra
     addiu $sp, $sp, 0xa0

func_A4000880:
    addiu $sp, $sp, -0x20
    sw    $ra, 0x1c($sp)
    move  $t1, $zero
    move  $t3, $zero
    move  $t4, $zero
.LA4000894:
    slti  $k0, $t4, 0x40
    beql  $k0, $zero, .LA40008FC
     move  $v0, $zero
    jal   func_A400090C
     move  $a0, $t4
    blezl $v0, .LA40008CC
     slti  $k0, $t1, 0x50
    subu  $k0, $v0, $t1
    multu $k0, $t4
    move  $t1, $v0
    mflo  $k0
    addu  $t3, $t3, $k0
    nop
    slti  $k0, $t1, 0x50
.LA40008CC:
    bnez  $k0, .LA4000894
     addiu $t4, $t4, 1
    sll   $a0, $t3, 2
    subu  $a0, $a0, $t3
    sll   $a0, $a0, 2
    subu  $a0, $a0, $t3
    sll   $a0, $a0, 1
    jal   func_A4000980
     addiu $a0, $a0, -0x370
    b     .LA4000900
     lw    $ra, 0x1c($sp)
    move  $v0, $zero
.LA40008FC:
    lw    $ra, 0x1c($sp)
.LA4000900:
    addiu $sp, $sp, 0x20
    jr    $ra
     nop

func_A400090C:
    addiu $sp, $sp, -0x28
    sw    $ra, 0x1c($sp)
    move  $v0, $zero
    jal   func_A4000A40
     li    $a1, 2
    move  $fp, $zero
    li    $k0, -1
.LA4000928:
    sw    $k0, 4($s4)
    lw    $v1, 4($s4)
    sw    $k0, ($s4)
    sw    $k0, ($s4)
    move  $gp, $zero
    srl   $v1, $v1, 0x10
.LA4000940:
    andi  $k0, $v1, 1
    beql  $k0, $zero, .LA4000954
     addiu $gp, $gp, 1
    addiu $v0, $v0, 1
    addiu $gp, $gp, 1
.LA4000954:
    slti  $k0, $gp, 8
    bnez  $k0, .LA4000940
     srl   $v1, $v1, 1
    addiu $fp, $fp, 1
    slti  $k0, $fp, 0xa
    bnezl $k0, .LA4000928
     li    $k0, -1
    lw    $ra, 0x1c($sp)
    addiu $sp, $sp, 0x28
    jr    $ra
     nop

func_A4000980:
    addiu $sp, $sp, -0x28
    sw    $ra, 0x1c($sp)
    sw    $a0, 0x20($sp)
    sb    $zero, 0x27($sp)
    move  $t0, $zero
    move  $t2, $zero
    li    $t5, 51200
    move  $t6, $zero
    slti  $k0, $t6, 0x40
.LA40009A4:
    bnezl $k0, .LA40009B8
     move  $a0, $t6
    b     .LA4000A30
     move  $v0, $zero
    move  $a0, $t6
.LA40009B8:
    jal   func_A4000A40
     li    $a1, 1
    jal   func_A4000AD0
     addiu $a0, $sp, 0x27
    jal   func_A4000AD0
     addiu $a0, $sp, 0x27
    lbu   $k0, 0x27($sp)
    li    $k1, 800
    lw    $a0, 0x20($sp)
    multu $k0, $k1
    mflo  $t0
    subu  $k0, $t0, $a0
    bgezl $k0, .LA40009F8
     slt   $k1, $k0, $t5
    subu  $k0, $a0, $t0
    slt   $k1, $k0, $t5
.LA40009F8:
    beql  $k1, $zero, .LA4000A0C
     lw    $a0, 0x20($sp)
    move  $t5, $k0
    move  $t2, $t6
    lw    $a0, 0x20($sp)
.LA4000A0C:
    slt   $k1, $t0, $a0
    beql  $k1, $zero, .LA4000A2C
     addu  $v0, $t2, $t6
    addiu $t6, $t6, 1
    slti  $k1, $t6, 0x41
    bnezl $k1, .LA40009A4
     slti  $k0, $t6, 0x40
    addu  $v0, $t2, $t6
.LA4000A2C:
    srl   $v0, $v0, 1
.LA4000A30:
    lw    $ra, 0x1c($sp)
    addiu $sp, $sp, 0x28
    jr    $ra
     nop

func_A4000A40:
    addiu $sp, $sp, -0x28
    andi  $a0, $a0, 0xff
    li    $k1, 1
    xori  $a0, $a0, 0x3f
    sw    $ra, 0x1c($sp)
    bne   $a1, $k1, .LA4000A64
     lui   $t7, 0x4600
    lui   $k0, 0x8000
    or    $t7, $t7, $k0
.LA4000A64:
    andi  $k0, $a0, 1
    sll   $k0, $k0, 6
    or    $t7, $t7, $k0
    andi  $k0, $a0, 2
    sll   $k0, $k0, 0xd
    or    $t7, $t7, $k0
    andi  $k0, $a0, 4
    sll   $k0, $k0, 0x14
    or    $t7, $t7, $k0
    andi  $k0, $a0, 8
    sll   $k0, $k0, 4
    or    $t7, $t7, $k0
    andi  $k0, $a0, 0x10
    sll   $k0, $k0, 0xb
    or    $t7, $t7, $k0
    andi  $k0, $a0, 0x20
    sll   $k0, $k0, 0x12
    or    $t7, $t7, $k0
    li    $k1, 1
    bne   $a1, $k1, .LA4000AC0
     sw    $t7, ($s5)
    lui   $k0, %hi(MI_MODE_REG)
    sw    $zero, %lo(MI_MODE_REG)($k0)
.LA4000AC0:
    lw    $ra, 0x1c($sp)
    addiu $sp, $sp, 0x28
    jr    $ra
     nop

func_A4000AD0:
    addiu $sp, $sp, -0x28
    sw    $ra, 0x1c($sp)
    li    $k0, 0x2000
    lui   $k1, %hi(MI_MODE_REG)
    sw    $k0, %lo(MI_MODE_REG)($k1)
    move  $fp, $zero
    lw    $fp, ($s5)
    li    $k0, 0x1000
    sw    $k0, %lo(MI_MODE_REG)($k1)
    li    $k1, 0x40
    and   $k1, $k1, $fp
    srl   $k1, $k1, 6
    move  $k0, $zero
    or    $k0, $k0, $k1
    li    $k1, 0x4000
    and   $k1, $k1, $fp
    srl   $k1, $k1, 0xd
    or    $k0, $k0, $k1
    li    $k1, 0x400000
    and   $k1, $k1, $fp
    srl   $k1, $k1, 0x14
    or    $k0, $k0, $k1
    li    $k1, 0x80
    and   $k1, $k1, $fp
    srl   $k1, $k1, 4
    or    $k0, $k0, $k1
    li    $k1, 0x8000
    and   $k1, $k1, $fp
    srl   $k1, $k1, 0xb
    or    $k0, $k0, $k1
    li    $k1, 0x800000
    and   $k1, $k1, $fp
    srl   $k1, $k1, 0x12
    or    $k0, $k0, $k1
    sb    $k0, ($a0)
    lw    $ra, 0x1c($sp)
    addiu $sp, $sp, 0x28
    jr    $ra
     nop
    nop

# 0xA4000B70-0xA4000FFF: IPL3 Font
glabel ipl3_font
.incbin "lib/bin/ipl3_font.bin"