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MorsGames
GitHub Repository: MorsGames/sm64plus
 Path: blob/master/lib/src/__osEPiRawWriteIo.c
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#include "libultra_internal.h"

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#include "hardware.h"

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s32 __osEPiRawWriteIo(OSPiHandle *a0, u32 a1, u32 a2) {

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    register u32 a3 = HW_REG(PI_STATUS_REG, u32);

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    while (a3 & PI_STATUS_ERROR)

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        a3 = HW_REG(PI_STATUS_REG, u32);

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    HW_REG(a0->baseAddress | a1, u32) = a2;

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    return 0;

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}

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/*

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/ 0B69A0 802F71A0 3C0EA460 /  lui   $t6, %hi(PI_STATUS_REG) # $t6, 0xa460

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/ 0B69A4 802F71A4 8DC70010 /  lw    $a3, %lo(PI_STATUS_REG)($t6)

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/ 0B69A8 802F71A8 27BDFFF8 /  addiu $sp, $sp, -8

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/ 0B69AC 802F71AC 30EF0003 /  andi  $t7, $a3, 3

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/ 0B69B0 802F71B0 11E00006 /  beqz  $t7, .L802F71CC

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/ 0B69B4 802F71B4 00000000 /   nop

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.L802F71B8:

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/ 0B69B8 802F71B8 3C18A460 /  lui   $t8, %hi(PI_STATUS_REG) # $t8, 0xa460

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/ 0B69BC 802F71BC 8F070010 /  lw    $a3, %lo(PI_STATUS_REG)($t8)

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/ 0B69C0 802F71C0 30F90003 /  andi  $t9, $a3, 3

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/ 0B69C4 802F71C4 1720FFFC /  bnez  $t9, .L802F71B8

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/ 0B69C8 802F71C8 00000000 /   nop

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.L802F71CC:

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/ 0B69CC 802F71CC 8C88000C /  lw    $t0, 0xc($a0)

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/ 0B69D0 802F71D0 3C01A000 /  lui   $at, 0xa000

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/ 0B69D4 802F71D4 27BD0008 /  addiu $sp, $sp, 8

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/ 0B69D8 802F71D8 01054825 /  or    $t1, $t0, $a1

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/ 0B69DC 802F71DC 01215025 /  or    $t2, $t1, $at

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/ 0B69E0 802F71E0 AD460000 /  sw    $a2, ($t2)

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/ 0B69E4 802F71E4 03E00008 /  jr    $ra

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/ 0B69E8 802F71E8 00001025 /   move  $v0, $zero

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/ 0B69EC 802F71EC 00000000 /  nop   */

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