sm64/lib/asm/__osExceptionPreamble.s

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

.include "macros.inc"


.section .text, "ax"

glabel __osExceptionPreamble
    lui   $k0, %hi(__osException) # $k0, 0x8032
    addiu $k0, %lo(__osException) # addiu $k0, $k0, 0x66d0
    jr    $k0
     nop


glabel __osException
    lui   $k0, %hi(gInterruptedThread) # $k0, 0x8036
    addiu $k0, %lo(gInterruptedThread) # addiu $k0, $k0, 0x5f40
    sd    $at, 0x20($k0)
    mfc0  $k1, $12
    sw    $k1, 0x118($k0)
    li    $at, -4
    and   $k1, $k1, $at
    mtc0  $k1, $12
    sd    $t0, 0x58($k0)
    sd    $t1, 0x60($k0)
    sd    $t2, 0x68($k0)
    sw    $zero, 0x18($k0)
    mfc0  $t0, $13
    andi  $t1, $t0, 0x7c
    li    $t2, 0
    bne   $t1, $t2, .L80326750
     nop
    and   $t1, $k1, $t0
    andi  $t2, $t1, 0x4000
    beqz  $t2, .L80326734
     nop
    li    $t1, 1
    lui   $at, %hi(D_80334934) # $at, 0x8033
    b     .L80326794
     sw    $t1, %lo(D_80334934)($at)
.L80326734:
    andi  $t2, $t1, 0x2000
    beqz  $t2, .L80326750
     nop
    li    $t1, 1
    lui   $at, %hi(D_80334938) # $at, 0x8033
    b     .L80326794
     sw    $t1, %lo(D_80334938)($at)
.L80326750:
    lui   $at, %hi(D_80334934) # $at, 0x8033
    sw    $zero, %lo(D_80334934)($at)
    lui   $at, %hi(D_80334938) # $at, 0x8033
    move  $t0, $k0
    sw    $zero, %lo(D_80334938)($at)
    lui   $k0, %hi(D_803348A0) # $k0, 0x8033
    lw    $k0, %lo(D_803348A0)($k0)
    ld    $t1, 0x20($t0)
    sd    $t1, 0x20($k0)
    ld    $t1, 0x118($t0)
    sd    $t1, 0x118($k0)
    ld    $t1, 0x58($t0)
    sd    $t1, 0x58($k0)
    ld    $t1, 0x60($t0)
    sd    $t1, 0x60($k0)
    ld    $t1, 0x68($t0)
    sd    $t1, 0x68($k0)
.L80326794:
    mflo  $t0
    sd    $t0, 0x108($k0)
    mfhi  $t0
    sd    $v0, 0x28($k0)
    sd    $v1, 0x30($k0)
    sd    $a0, 0x38($k0)
    sd    $a1, 0x40($k0)
    sd    $a2, 0x48($k0)
    sd    $a3, 0x50($k0)
    sd    $t3, 0x70($k0)
    sd    $t4, 0x78($k0)
    sd    $t5, 0x80($k0)
    sd    $t6, 0x88($k0)
    sd    $t7, 0x90($k0)
    sd    $s0, 0x98($k0)
    sd    $s1, 0xa0($k0)
    sd    $s2, 0xa8($k0)
    sd    $s3, 0xb0($k0)
    sd    $s4, 0xb8($k0)
    sd    $s5, 0xc0($k0)
    sd    $s6, 0xc8($k0)
    sd    $s7, 0xd0($k0)
    sd    $t8, 0xd8($k0)
    sd    $t9, 0xe0($k0)
    sd    $gp, 0xe8($k0)
    sd    $sp, 0xf0($k0)
    sd    $fp, 0xf8($k0)
    sd    $ra, 0x100($k0)
    sd    $t0, 0x110($k0)
    mfc0  $t0, $14
    sw    $t0, 0x11c($k0)
    lw    $t0, 0x18($k0)
    beqz  $t0, .L80326868
     nop
    cfc1  $t0, $31
    nop
    sw    $t0, 0x12c($k0)
    sdc1  $f0, 0x130($k0)
    sdc1  $f2, 0x138($k0)
    sdc1  $f4, 0x140($k0)
    sdc1  $f6, 0x148($k0)
    sdc1  $f8, 0x150($k0)
    sdc1  $f10, 0x158($k0)
    sdc1  $f12, 0x160($k0)
    sdc1  $f14, 0x168($k0)
    sdc1  $f16, 0x170($k0)
    sdc1  $f18, 0x178($k0)
    sdc1  $f20, 0x180($k0)
    sdc1  $f22, 0x188($k0)
    sdc1  $f24, 0x190($k0)
    sdc1  $f26, 0x198($k0)
    sdc1  $f28, 0x1a0($k0)
    sdc1  $f30, 0x1a8($k0)
.L80326868:
    mfc0  $t0, $13
    sw    $t0, 0x120($k0)
    lui   $t1, %hi(D_A430000C) # $t1, 0xa430
    lw    $t1, %lo(D_A430000C)($t1)
    sw    $t1, 0x128($k0)
    li    $t1, 2
    sh    $t1, 0x10($k0)
    lui   $t1, %hi(D_80334934) # $t1, 0x8033
    lw    $t1, %lo(D_80334934)($t1)
    beqz  $t1, .L803268B4
     nop
    lui   $t2, %hi(D_C0000008) # $t2, 0xc000
    sw    $zero, %lo(D_C0000008)($t2)
    lui   $a0, %hi(D_C0000000)
    addiu $t2, %lo(D_C0000008) # addiu $t2, $t2, 8
    jal   kdebugserver
     lw    $a0, %lo(D_C0000000)($a0)
    b     .L80326E08
     nop
.L803268B4:
    lui   $t1, %hi(D_80334938) # $t1, 0x8033
    lw    $t1, %lo(D_80334938)($t1)
    beqz  $t1, .L80326900
     nop
    lui   $t2, %hi(D_C000000C) # $t2, 0xc000
    sw    $zero, %lo(D_C000000C)($t2)
    lui   $t1, %hi(D_80334A40) # $t1, 0x8033
    lw    $t1, %lo(D_80334A40)($t1)
    addiu $t2, %lo(D_C000000C) # addiu $t2, $t2, 0xc
    beqz  $t1, .L803268E8
     nop
    jal   send_mesg
     li    $a0, 120
.L803268E8:
    lui   $t1, %hi(D_80334A44) # $t1, 0x8033
    lw    $t1, %lo(D_80334A44)($t1)
    lui   $at, %hi(D_80334A44) # $at, 0x8033
    addi  $t1, $t1, 1
    b     .L80326E08
     sw    $t1, %lo(D_80334A44)($at)
.L80326900:
    andi  $t1, $t0, 0x7c
    li    $t2, 36
    beq   $t1, $t2, .L80326B84
     nop
    li    $t2, 44
    beq   $t1, $t2, .L80326CCC
     nop
    li    $t2, 0
    bne   $t1, $t2, .L80326BE8
     nop
    and   $s0, $k1, $t0
.L8032692C:
    andi  $t1, $s0, 0xff00
    srl   $t2, $t1, 0xc
    bnez  $t2, .L80326944
     nop
    srl   $t2, $t1, 8
    addi  $t2, $t2, 0x10
.L80326944:
    lui   $at, %hi(D_80338610)
    addu  $at, $at, $t2
    lbu   $t2, %lo(D_80338610)($at)
    lui   $at, %hi(jtbl_80338630)
    addu  $at, $at, $t2
    lw    $t2, %lo(jtbl_80338630)($at)
    jr    $t2
     nop
glabel L80326964
    mfc0  $t1, $11
    mtc0  $t1, $11
    jal   send_mesg
     li    $a0, 24
    lui   $at, (0xFFFF7FFF >> 16) # lui $at, 0xffff
    ori   $at, (0xFFFF7FFF & 0xFFFF) # ori $at, $at, 0x7fff
    b     .L8032692C
     and   $s0, $s0, $at
glabel L80326984
    li    $t2, 4
    lui   $at, %hi(D_80334920)
    addu  $at, $at, $t2
    lw    $t2, %lo(D_80334920)($at)
    beqz  $t2, .L803269A4
     nop
    jalr  $t2
    nop
.L803269A4:
    jal   send_mesg
     li    $a0, 16
    li    $at, -2049
    b     .L8032692C
     and   $s0, $s0, $at
glabel L803269B8
    lui   $s1, %hi(D_A4300008) # $s1, 0xa430
    lw    $s1, %lo(D_A4300008)($s1)
    andi  $s1, $s1, 0x3f
    andi  $t1, $s1, 1
    beqz  $t1, .L80326A18
     nop
    lui   $t4, %hi(D_A4040010) # $t4, 0xa404
    lw    $t4, %lo(D_A4040010)($t4)
    li    $t1, 8
    lui   $at, %hi(D_A4040010) # $at, 0xa404
    andi  $t4, $t4, 0x300
    andi  $s1, $s1, 0x3e
    beqz  $t4, .L80326A08
     sw    $t1, %lo(D_A4040010)($at)
    jal   send_mesg
     li    $a0, 32
    beqz  $s1, .L80326ADC
     nop
    b     .L80326A18
     nop
.L80326A08:
    jal   send_mesg
     li    $a0, 88
    beqz  $s1, .L80326ADC
     nop
.L80326A18:
    andi  $t1, $s1, 8
    beqz  $t1, .L80326A3C
     lui   $at, %hi(D_A4400010) # $at, 0xa440
    andi  $s1, $s1, 0x37
    sw    $zero, %lo(D_A4400010)($at)
    jal   send_mesg
     li    $a0, 56
    beqz  $s1, .L80326ADC
     nop
.L80326A3C:
    andi  $t1, $s1, 4
    beqz  $t1, .L80326A68
     nop
    li    $t1, 1
    lui   $at, %hi(D_A450000C) # $at, 0xa450
    andi  $s1, $s1, 0x3b
    sw    $t1, %lo(D_A450000C)($at)
    jal   send_mesg
     li    $a0, 48
    beqz  $s1, .L80326ADC
     nop
.L80326A68:
    andi  $t1, $s1, 2
    beqz  $t1, .L80326A8C
     lui   $at, %hi(D_A4800018) # $at, 0xa480
    andi  $s1, $s1, 0x3d
    sw    $zero, %lo(D_A4800018)($at)
    jal   send_mesg
     li    $a0, 40
    beqz  $s1, .L80326ADC
     nop
.L80326A8C:
    andi  $t1, $s1, 0x10
    beqz  $t1, .L80326AB8
     nop
    li    $t1, 2
    lui   $at, %hi(D_A4600010) # $at, 0xa460
    andi  $s1, $s1, 0x2f
    sw    $t1, %lo(D_A4600010)($at)
    jal   send_mesg
     li    $a0, 64
    beqz  $s1, .L80326ADC
     nop
.L80326AB8:
    andi  $t1, $s1, 0x20
    beqz  $t1, .L80326ADC
     nop
    li    $t1, 2048
    lui   $at, %hi(D_A4300000)
    andi  $s1, $s1, 0x1f
    sw    $t1, %lo(D_A4300000)($at)
    jal   send_mesg
     li    $a0, 72
.L80326ADC:
    li    $at, -1025
    b     .L8032692C
     and   $s0, $s0, $at
glabel L80326AE8
    lw    $k1, 0x118($k0)
    li    $at, -4097
    lui   $t1, %hi(D_80334808) # $t1, 0x8033
    and   $k1, $k1, $at
    sw    $k1, 0x118($k0)
    addiu $t1, %lo(D_80334808) # addiu $t1, $t1, 0x4808
    lw    $t2, ($t1)
    beqz  $t2, .L80326B14
     li    $at, -4097
    b     .L80326B9C
     and   $s0, $s0, $at
.L80326B14:
    li    $t2, 1
    sw    $t2, ($t1)
    jal   send_mesg
     li    $a0, 112
    lui   $t2, %hi(D_80334898) # $t2, 0x8033
    lw    $t2, %lo(D_80334898)($t2)
    li    $at, -4097
    and   $s0, $s0, $at
    lw    $k1, 0x118($t2)
    and   $k1, $k1, $at
    b     .L80326B9C
     sw    $k1, 0x118($t2)
glabel L80326B44
    li    $at, -513
    and   $t0, $t0, $at
    mtc0  $t0, $13
    jal   send_mesg
     li    $a0, 8
    li    $at, -513
    b     .L8032692C
     and   $s0, $s0, $at
glabel L80326B64
    li    $at, -257
    and   $t0, $t0, $at
    mtc0  $t0, $13
    jal   send_mesg
     li    $a0, 0
    li    $at, -257
    b     .L8032692C
     and   $s0, $s0, $at
.L80326B84:
    li    $t1, 1
    sh    $t1, 0x12($k0)
    jal   send_mesg
     li    $a0, 80
    b     .L80326B9C
     nop
.L80326B9C:
glabel L80326B9C
    lui   $t2, %hi(D_80334898) # $t2, 0x8033
    lw    $t2, %lo(D_80334898)($t2)
    lw    $t1, 4($k0)
    lw    $t3, 4($t2)
    slt   $at, $t1, $t3
    beqz  $at, .L80326BD0
     nop
    lui   $a0, %hi(D_80334898) # $a0, 0x8033
    move  $a1, $k0
    jal   __osEnqueueThread
     addiu $a0, %lo(D_80334898) # addiu $a0, $a0, 0x4898
    j     __osDispatchThread
     nop

.L80326BD0:
    lui   $t1, %hi(D_80334898) # $t1, 0x8033
    addiu $t1, %lo(D_80334898) # addiu $t1, $t1, 0x4898
    lw    $t2, ($t1)
    sw    $t2, ($k0)
    j     __osDispatchThread
     sw    $k0, ($t1)

.L80326BE8:
glabel L80326BE8
    lui   $at, %hi(D_803348A4) # $at, 0x8033
    sw    $k0, %lo(D_803348A4)($at)
    li    $t1, 1
    sh    $t1, 0x10($k0)
    li    $t1, 2
    sh    $t1, 0x12($k0)
    mfc0  $t2, $8
    sw    $t2, 0x124($k0)
    jal   send_mesg
     li    $a0, 96
    j     __osDispatchThread
     nop

glabel send_mesg
    lui   $t2, %hi(D_80363830) # $t2, 0x8036
    addiu $t2, %lo(D_80363830) # addiu $t2, $t2, 0x3830
    addu  $t2, $t2, $a0
    lw    $t1, ($t2)
    move  $s2, $ra
    beqz  $t1, .L80326CC4
     nop
    lw    $t3, 8($t1)
    lw    $t4, 0x10($t1)
    slt   $at, $t3, $t4
    beqz  $at, .L80326CC4
     nop
    lw    $t5, 0xc($t1)
    addu  $t5, $t5, $t3
    div   $zero, $t5, $t4
    bnez  $t4, .L80326C60
     nop
    break 7
.L80326C60:
    li    $at, -1
    bne   $t4, $at, .L80326C78
     lui   $at, 0x8000
    bne   $t5, $at, .L80326C78
     nop
    break 6
.L80326C78:
    lw    $t4, 0x14($t1)
    mfhi  $t5
    sll   $t5, $t5, 2
    addu  $t4, $t4, $t5
    lw    $t5, 4($t2)
    addiu $t2, $t3, 1
    sw    $t5, ($t4)
    sw    $t2, 8($t1)
    lw    $t2, ($t1)
    lw    $t3, ($t2)
    beqz  $t3, .L80326CC4
     nop
    jal   __osPopThread
     move  $a0, $t1
    move  $t2, $v0
    lui   $a0, %hi(D_80334898) # $a0, 0x8033
    move  $a1, $t2
    jal   __osEnqueueThread
     addiu $a0, %lo(D_80334898) # addiu $a0, $a0, 0x4898
.L80326CC4:
    jr    $s2
     nop
.L80326CCC:
    lui   $at, 0x3000
    and   $t1, $t0, $at
    srl   $t1, $t1, 0x1c
    li    $t2, 1
    bne   $t1, $t2, .L80326BE8
     nop
    lw    $k1, 0x118($k0)
    lui   $at, 0x2000
    li    $t1, 1
    or    $k1, $k1, $at
    sw    $t1, 0x18($k0)
    b     .L80326BD0
     sw    $k1, 0x118($k0)


glabel __osEnqueueAndYield
    lui   $a1, %hi(D_803348A0) # $a1, 0x8033
    lw    $a1, %lo(D_803348A0)($a1)
    mfc0  $t0, $12
    lw    $k1, 0x18($a1)
    ori   $t0, $t0, 2
    sw    $t0, 0x118($a1)
    sd    $s0, 0x98($a1)
    sd    $s1, 0xa0($a1)
    sd    $s2, 0xa8($a1)
    sd    $s3, 0xb0($a1)
    sd    $s4, 0xb8($a1)
    sd    $s5, 0xc0($a1)
    sd    $s6, 0xc8($a1)
    sd    $s7, 0xd0($a1)
    sd    $gp, 0xe8($a1)
    sd    $sp, 0xf0($a1)
    sd    $fp, 0xf8($a1)
    sd    $ra, 0x100($a1)
    beqz  $k1, .L80326D70
     sw    $ra, 0x11c($a1)
    cfc1  $k1, $31
    sdc1  $f20, 0x180($a1)
    sdc1  $f22, 0x188($a1)
    sdc1  $f24, 0x190($a1)
    sdc1  $f26, 0x198($a1)
    sdc1  $f28, 0x1a0($a1)
    sdc1  $f30, 0x1a8($a1)
    sw    $k1, 0x12c($a1)
.L80326D70:
    lui   $k1, %hi(D_A430000C) # $k1, 0xa430
    lw    $k1, %lo(D_A430000C)($k1)
    beqz  $a0, .L80326D88
     sw    $k1, 0x128($a1)
    jal   __osEnqueueThread
     nop
.L80326D88:
    j     __osDispatchThread
     nop


#enqueue and pop look like compiled functions?  but there's no easy way to extract them
glabel __osEnqueueThread
    lw    $t8, ($a0)
    lw    $t7, 4($a1)
    move  $t9, $a0
    lw    $t6, 4($t8)
    slt   $at, $t6, $t7
    bnez  $at, .L80326DC4
     nop
.L80326DAC:
    move  $t9, $t8
    lw    $t8, ($t8)
    lw    $t6, 4($t8)
    slt   $at, $t6, $t7
    beqz  $at, .L80326DAC
     nop
.L80326DC4:
    lw    $t8, ($t9)
    sw    $t8, ($a1)
    sw    $a1, ($t9)
    jr    $ra
     sw    $a0, 8($a1)

glabel __osPopThread
    lw    $v0, ($a0)
    lw    $t9, ($v0)
    jr    $ra
     sw    $t9, ($a0)

glabel __osDispatchThread
    lui   $a0, %hi(D_80334898) # $a0, 0x8033
    jal   __osPopThread
     addiu $a0, %lo(D_80334898) # addiu $a0, $a0, 0x4898
    lui   $at, %hi(D_803348A0) # $at, 0x8033
    sw    $v0, %lo(D_803348A0)($at)
    li    $t0, 4
    sh    $t0, 0x10($v0)
    move  $k0, $v0
.L80326E08:
    ld    $k1, 0x108($k0)
    ld    $at, 0x20($k0)
    ld    $v0, 0x28($k0)
    mtlo  $k1
    ld    $k1, 0x110($k0)
    ld    $v1, 0x30($k0)
    ld    $a0, 0x38($k0)
    ld    $a1, 0x40($k0)
    ld    $a2, 0x48($k0)
    ld    $a3, 0x50($k0)
    ld    $t0, 0x58($k0)
    ld    $t1, 0x60($k0)
    ld    $t2, 0x68($k0)
    ld    $t3, 0x70($k0)
    ld    $t4, 0x78($k0)
    ld    $t5, 0x80($k0)
    ld    $t6, 0x88($k0)
    ld    $t7, 0x90($k0)
    ld    $s0, 0x98($k0)
    ld    $s1, 0xa0($k0)
    ld    $s2, 0xa8($k0)
    ld    $s3, 0xb0($k0)
    ld    $s4, 0xb8($k0)
    ld    $s5, 0xc0($k0)
    ld    $s6, 0xc8($k0)
    ld    $s7, 0xd0($k0)
    ld    $t8, 0xd8($k0)
    ld    $t9, 0xe0($k0)
    ld    $gp, 0xe8($k0)
    mthi  $k1
    ld    $sp, 0xf0($k0)
    ld    $fp, 0xf8($k0)
    ld    $ra, 0x100($k0)
    lw    $k1, 0x11c($k0)
    mtc0  $k1, $14
    lw    $k1, 0x118($k0)
    mtc0  $k1, $12
    lw    $k1, 0x18($k0)
    beqz  $k1, .L80326EF0
     nop
    lw    $k1, 0x12c($k0)
    ctc1  $k1, $31
    ldc1  $f0, 0x130($k0)
    ldc1  $f2, 0x138($k0)
    ldc1  $f4, 0x140($k0)
    ldc1  $f6, 0x148($k0)
    ldc1  $f8, 0x150($k0)
    ldc1  $f10, 0x158($k0)
    ldc1  $f12, 0x160($k0)
    ldc1  $f14, 0x168($k0)
    ldc1  $f16, 0x170($k0)
    ldc1  $f18, 0x178($k0)
    ldc1  $f20, 0x180($k0)
    ldc1  $f22, 0x188($k0)
    ldc1  $f24, 0x190($k0)
    ldc1  $f26, 0x198($k0)
    ldc1  $f28, 0x1a0($k0)
    ldc1  $f30, 0x1a8($k0)
.L80326EF0:
    lw    $k1, 0x128($k0)
    sll   $k1, $k1, 1
    lui   $k0, %hi(D_803386D0) # $k0, 0x8034
    addiu $k0, %lo(D_803386D0) # addiu $k0, $k0, -0x7930
    addu  $k1, $k1, $k0
    lhu   $k1, ($k1)
    lui   $k0, %hi(D_A430000C) # $k0, 0xa430
    addiu $k0, %lo(D_A430000C) # addiu $k0, $k0, 0xc
    sw    $k1, ($k0)
    nop
    nop
    nop
    nop
    eret
glabel __osCleanupThread
    jal   osDestroyThread
     move  $a0, $zero

.section .data

glabel D_80334920
    .word 0
    .word 0
    .word 0
    .word 0
    .word 0

glabel D_80334934
    .word 0

glabel D_80334938
    .word 0
    .word 0



.section .rodata

glabel D_80338610
    .byte 0x00,0x14,0x18,0x18,0x1C,0x1C,0x1C,0x1C,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x00,0x04,0x08,0x08,0x0C,0x0C,0x0C,0x0C,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10

glabel jtbl_80338630
    .word L80326B9C
    .word L80326B64
    .word L80326B44
    .word L803269B8
    .word L80326984
    .word L80326AE8
    .word L80326BE8
    .word L80326BE8
    .word L80326964
    .word 0
    .word 0
    .word 0