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MorsGames
GitHub Repository: MorsGames/sm64plus
 Path: blob/master/lib/asm/osMapTLB.s
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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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.section .text, "ax"

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// This file is handwritten

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// void osMapTLB(s32 index, OSPageMask pm, void *vaddr, u32 evenpaddr, u32 oddpaddr, s32 asid);

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glabel osMapTLB

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    mfc0  $t0, $10

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    mtc0  $a0, $0

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    mtc0  $a1, $5

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    lw    $t1, 0x14($sp) #asid

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    beq   $t1, -1, .L803214D8

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    li    $t4, 1

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    li    $t2, 30

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    b     .L803214DC

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    or    $a2, $a2, $t1 #vaddr

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.L803214D8:

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    li    $t2, 31

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.L803214DC:

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    mtc0  $a2, $10 #vaddr

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    beq   $a3, -1, .L80321500 #even paddr

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    nop

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    srl   $t3, $a3, 6   #evenpaddr

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    or    $t3, $t3, $t2

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    mtc0  $t3, $2

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    b     .L80321504

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    nop

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.L80321500:

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    mtc0  $t4, $2

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.L80321504:

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    lw    $t3, 0x10($sp) #oddpaddr

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    beq   $t3, -1, .L80321528

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    nop

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    srl   $t3, $t3, 6

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    or    $t3, $t3, $t2

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    mtc0  $t3, $3

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    b     .L80321540

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    nop

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.L80321528:

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    mtc0  $t4, $3

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    bne   $a3, -1, .L80321540 #evenpaddr

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    nop

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    lui   $t3, 0x8000

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    mtc0  $t3, $10

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.L80321540:

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    nop

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    tlbwi

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    nop

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    nop

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    nop

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    nop

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    mtc0  $t0, $10

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    jr    $ra

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    nop   #file gets padded but

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    nop

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    nop

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    nop

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