2021-07-12 23:17:54 -04:00
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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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2019-08-25 00:46:40 -04:00
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.set gp=64
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2021-07-12 23:17:54 -04:00
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#include "macros.inc"
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2019-08-25 00:46:40 -04:00
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.section .text, "ax"
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glabel __osProbeTLB
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mfc0 $t0, $10
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andi $t1, $t0, 0xff
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li $at, -8192
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and $t2, $a0, $at
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or $t1, $t1, $t2
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mtc0 $t1, $10
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nop
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nop
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nop
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tlbp
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nop
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nop
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mfc0 $t3, $0
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lui $at, 0x8000
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and $t3, $t3, $at
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bnez $t3, .L8032A0D8
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nop
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tlbr
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nop
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nop
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nop
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mfc0 $t3, $5
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addi $t3, $t3, 0x2000
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srl $t3, $t3, 1
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and $t4, $t3, $a0
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bnez $t4, .L8032A0A8
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addi $t3, $t3, -1
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mfc0 $v0, $2
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b .L8032A0AC
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nop
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.L8032A0A8:
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mfc0 $v0, $3
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.L8032A0AC:
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andi $t5, $v0, 2
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beqz $t5, .L8032A0D8
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nop
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2021-07-12 23:17:54 -04:00
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lui $at, (0x3FFFFFC0 >> 16) // lui $at, 0x3fff
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ori $at, (0x3FFFFFC0 & 0xFFFF) // ori $at, $at, 0xffc0
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2019-08-25 00:46:40 -04:00
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and $v0, $v0, $at
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sll $v0, $v0, 6
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and $t5, $a0, $t3
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add $v0, $v0, $t5
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b .L8032A0DC
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nop
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.L8032A0D8:
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li $v0, -1
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.L8032A0DC:
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mtc0 $t0, $10
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jr $ra
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nop
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nop
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nop
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