Files
goldeneye-pc-port/ge007_libultra/lib/asm/__osProbeTLB.s
T
kholdfuzion a6f7d68edb update to current progress
Former-commit-id: bed7f1bddb7af09c0f288c1150c6b1c5c106e3be [formerly 02402a0b62d22bfba17d6dfef2f443c1500b450a] [formerly 93bff37d83bad8297647c88c0b42afe81ed277e7 [formerly 08274c78a878dba3fa13551e009ca7aba6528beb]]
Former-commit-id: f66285070e26f0193e87c728c4a0d3913e9a6868 [formerly 85e3eb7005d566d372945751835e29205ff816b4]
Former-commit-id: deff595044d44ac83b2a5c920a64abb2d97054f5
2019-08-03 17:56:46 +00:00

66 lines
1017 B
ArmAsm

.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