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# PSn00bSDK syscall wrappers
# (C) 2022 spicyjpeg - MPL licensed
.set noreorder
.section .text.EnterCriticalSection
.global EnterCriticalSection
.type EnterCriticalSection, @function
EnterCriticalSection:
li $a0, 0x01
syscall 0
jr $ra
nop
.section .text.ExitCriticalSection
.global ExitCriticalSection
.type ExitCriticalSection, @function
ExitCriticalSection:
li $a0, 0x02
syscall 0
jr $ra
nop
.section .text.SwEnterCriticalSection
.global SwEnterCriticalSection
.type SwEnterCriticalSection, @function
SwEnterCriticalSection:
mfc0 $a0, $12 # cop0r12 &= ~0x401
li $a1, -1026
and $a1, $a0
mtc0 $a1, $12
andi $a0, 0x0401 # return ((cop0r12_prev & 0x401) == 0x401)
sltiu $v0, $a0, 0x0401
jr $ra
xori $v0, 1
.section .text.SwExitCriticalSection
.global SwExitCriticalSection
.type SwExitCriticalSection, @function
SwExitCriticalSection:
mfc0 $a0, $12 # cop0r12 |= 0x401
nop
ori $a0, 0x0401
mtc0 $a0, $12
nop
jr $ra
nop
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