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| author | John "Lameguy" Wilbert Villamor <lameguy64@gmail.com> | 2022-09-26 16:49:56 +0800 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2022-09-26 16:49:56 +0800 |
| commit | c4a2533d21dfd05cde841ea48c67b05e0e6a853f (patch) | |
| tree | c7ef61653b157b69fb0956709366996ddbc4ecfa /libpsn00b/psxapi/_syscalls.s | |
| parent | a8b404b3400c3ebd8e0b923dcaefcc49ea563e36 (diff) | |
| parent | 86f0064afb8200e60dd80827535cac30d0eab028 (diff) | |
| download | psn00bsdk-c4a2533d21dfd05cde841ea48c67b05e0e6a853f.tar.gz | |
Merge pull request #55 from spicyjpeg/psxmdec
Full MDEC support, C library refactors, cleanups and bugfixes (v0.20)
Diffstat (limited to 'libpsn00b/psxapi/_syscalls.s')
| -rw-r--r-- | libpsn00b/psxapi/_syscalls.s | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/libpsn00b/psxapi/_syscalls.s b/libpsn00b/psxapi/_syscalls.s new file mode 100644 index 0000000..24864f3 --- /dev/null +++ b/libpsn00b/psxapi/_syscalls.s @@ -0,0 +1,50 @@ +# 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 &= ~0x00000401 + li $a1, -1026 + and $a0, $a1 + mtc0 $a0, $12 + nop + + jr $ra + nop + +.section .text.SwExitCriticalSection +.global SwExitCriticalSection +.type SwExitCriticalSection, @function +SwExitCriticalSection: + mfc0 $a0, $12 # cop0r12 |= 0x00000401 + nop + ori $a0, 0x0401 + mtc0 $a0, $12 + nop + + jr $ra + nop |