super-mario-64/lib/asm/__osProbeTLB.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 __osProbeTLB
	mfc0  $t0, $10
	andi  $t1, $t0, 0xff
	li    $at, -8192
	and   $t2, $a0, $at
	or    $t1, $t1, $t2
	mtc0  $t1, $10
	nop   
	nop   
	nop   
	tlbp  
	nop   
	nop   
	mfc0  $t3, $0
	lui   $at, 0x8000
	and   $t3, $t3, $at
	bnez  $t3, .L8032A0D8
	 nop   
	tlbr  
	nop   
	nop   
	nop   
	mfc0  $t3, $5
	addi  $t3, $t3, 0x2000
	srl   $t3, $t3, 1
	and   $t4, $t3, $a0
	bnez  $t4, .L8032A0A8
	 addi  $t3, $t3, -1
	mfc0  $v0, $2
	b     .L8032A0AC
	 nop   
.L8032A0A8:
	mfc0  $v0, $3
.L8032A0AC:
	andi  $t5, $v0, 2
	beqz  $t5, .L8032A0D8
	 nop   
	lui   $at, (0x3FFFFFC0 >> 16) # lui $at, 0x3fff
	ori   $at, (0x3FFFFFC0 & 0xFFFF) # ori $at, $at, 0xffc0
	and   $v0, $v0, $at
	sll   $v0, $v0, 6
	and   $t5, $a0, $t3
	add   $v0, $v0, $t5
	b     .L8032A0DC
	 nop   
.L8032A0D8:
	li    $v0, -1
.L8032A0DC:
	mtc0  $t0, $10
	jr    $ra
	 nop   

	nop   
	nop