CoCalc -- osSetIntMask.s

GitHub Repository: MorsGames/sm64plus
Path: blob/master/lib/asm/osSetIntMask.s
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.set noat      // allow manual use of $at
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.set noreorder // don't insert nops after branches
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.set gp=64
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#include "macros.inc"
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.eqv MI_INTR_MASK_REG, 0xA430000C
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.section .text, "ax"
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glabel osSetIntMask
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#if defined(VERSION_EU) || defined(VERSION_SH)
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    mfc0  $t4, $12
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    andi  $v0, $t4, 0xff01
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    lui   $t0, %hi(__OSGlobalIntMask) // $t0, 0x8030
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    addiu $t0, %lo(__OSGlobalIntMask) // addiu $t0, $t0, 0x208c
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    lw    $t3, ($t0)
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    li    $at, -1
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    xor   $t0, $t3, $at
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    andi  $t0, $t0, 0xff00
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    or    $v0, $v0, $t0
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#else
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    mfc0  $t1, $12
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    andi  $v0, $t1, 0xff01
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#endif
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    lui   $t2, %hi(MI_INTR_MASK_REG) // $t2, 0xa430
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    lw    $t2, %lo(MI_INTR_MASK_REG)($t2)
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#if defined(VERSION_EU) || defined(VERSION_SH)
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    beqz  $t2, .L80200074
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    srl   $t1, $t3, 0x10
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    li    $at, -1
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    xor   $t1, $t1, $at
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    andi  $t1, $t1, 0x3f
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    or    $t2, $t2, $t1
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.L80200074:
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#endif
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    sll   $t2, $t2, 0x10
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    or    $v0, $v0, $t2
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    lui   $at, 0x3f
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    and   $t0, $a0, $at
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#if defined(VERSION_EU) || defined(VERSION_SH)
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    and   $t0, $t0, $t3
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#endif
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    srl   $t0, $t0, 0xf
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    lui   $t2, %hi(D_803386D0)
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    addu  $t2, $t2, $t0
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    lhu   $t2, %lo(D_803386D0)($t2)
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    lui   $at, %hi(MI_INTR_MASK_REG) // $at, 0xa430
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    sw    $t2, %lo(MI_INTR_MASK_REG)($at)
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    andi  $t0, $a0, 0xff01
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#if defined(VERSION_EU) || defined(VERSION_SH)
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    andi  $t1, $t3, 0xff00
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    and   $t0, $t0, $t1
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#endif
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    lui   $at, (0xFFFF00FF >> 16) // lui $at, 0xffff
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    ori   $at, (0xFFFF00FF & 0xFFFF) // ori $at, $at, 0xff
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#if defined(VERSION_EU) || defined(VERSION_SH)
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    and   $t4, $t4, $at
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    or    $t4, $t4, $t0
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    mtc0  $t4, $12
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#else
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    and   $t1, $t1, $at
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    or    $t1, $t1, $t0
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    mtc0  $t1, $12
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#endif
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    nop
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    nop
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    jr    $ra
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     nop
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.section .rodata
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glabel D_803386D0
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.half 0x0555
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.half 0x0556
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.half 0x0559
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.half 0x055A
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.half 0x0565
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.half 0x0566
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.half 0x0569
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.half 0x056A
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.half 0x0595
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.half 0x0596
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.half 0x0599
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.half 0x059A
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.half 0x05A5
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.half 0x05A6
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.half 0x05A9
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.half 0x05AA
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.half 0x0655
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.half 0x0656
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.half 0x0659
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.half 0x065A
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.half 0x0665
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.half 0x0666
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.half 0x0669
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.half 0x066A
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.half 0x0695
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.half 0x0696
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.half 0x0699
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.half 0x069A
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.half 0x06A5
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.half 0x06A6
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.half 0x06A9
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.half 0x06AA
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.half 0x0955
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.half 0x0956
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.half 0x0959
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.half 0x095A
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.half 0x0965
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.half 0x0966
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.half 0x0969
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.half 0x096A
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.half 0x0995
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.half 0x0996
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.half 0x0999
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.half 0x099A
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.half 0x09A5
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.half 0x09A6
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.half 0x09A9
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.half 0x09AA
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.half 0x0A55
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.half 0x0A56
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.half 0x0A59
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.half 0x0A5A
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.half 0x0A65
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.half 0x0A66
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.half 0x0A69
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.half 0x0A6A
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.half 0x0A95
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.half 0x0A96
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.half 0x0A99
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.half 0x0A9A
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.half 0x0AA5
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.half 0x0AA6
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.half 0x0AA9
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.half 0x0AAA
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