UsersystemLib Module

Functions
s32	sceKernelCpuSuspendIntr (void)
void	sceKernelCpuResumeIntr (s32 intr)
void	sceKernelCpuResumeIntrWithSync (s32 intr)
s32	sceKernelIsCpuIntrSuspended (s32 intr)
s32	sceKernelIsCpuIntrEnable (void)
s32	sub_00000208 (s32 dlId, void *stall)
s32	sceGe_lazy_31129B95 (s32 dlId, void *stall)
s32	sceKernelGetThreadId (void)
s32	sceKernelCheckThreadStack (void)
void *	sceKernelGetTlsAddr (SceUID uid)
s32	sceKernelTryLockLwMutex (SceLwMutex *mutex, s32 count)
s32	sceKernelTryLockLwMutex_600 (SceLwMutex *mutex, s32 count)
s32	sceKernelLockLwMutexCB (SceLwMutex *mutex, s32 count)
s32	sceKernelLockLwMutex (SceLwMutex *mutex, s32 count)
s32	sceKernelUnlockLwMutex (SceLwMutex *mutex, s32 count)
s32	Kernel_Library_3AD10D4D (SceLwMutex *mutex)
s32	sceKernelReferLwMutexStatus (SceLwMutex *mutex, u32 *addr)
void *	sceKernelMemcpy (void *dst, const void *src, SceSize size)
void *	sceKernelMemset (void *dst, s8 val, SceSize size)

Detailed Description

Author

geecko

Version

6.60

The usersystemlib.prx module RE'ing.

Function Documentation

sceKernelCpuSuspendIntr()

s32 sceKernelCpuSuspendIntr

(

void

)

Suspends all interrupts.

Returns

Current state of the interrupt controller.

sceKernelCpuResumeIntr()

void sceKernelCpuResumeIntr

(

s32

intr

)

Resumes all interrupts.

Parameters

intr	A state returned by sceKernelCpuSuspendIntr().

sceKernelCpuResumeIntrWithSync()

void sceKernelCpuResumeIntrWithSync

(

s32

intr

)

Resumes all interrupts, with synchronization.

Parameters

intr	A state returned by sceKernelCpuSuspendIntr().

sceKernelIsCpuIntrSuspended()

s32 sceKernelIsCpuIntrSuspended

(

s32

intr

)

Checks if interrupts are suspended.

Parameters

intr	A state returned by sceKernelCpuSuspendIntr().

Returns

1 if the state indicates that interrupts are suspended, otherwise 0.

sceKernelIsCpuIntrEnable()

s32 sceKernelIsCpuIntrEnable

(

void

)

Checks if interrupts are enabled.

Returns

1 if interrupts are enabled, otherwise 0.

sub_00000208()

s32 sub_00000208	(	s32	dlId,
		void *	stall
	)

Calls sceGeListUpdateStallAddr.

This is NOT an exported function because it is only used by sceGe_lazy_31129B95(). Its syscall instruction is patched at runtime by the GE module.

sceGe_lazy_31129B95()

s32 sceGe_lazy_31129B95	(	s32	dlId,
		void *	stall
	)

Updates the stall address.

Calls sceGeListUpdateStallAddr with additional checks, limiting its call once out of 64 times. This function is only used by 'Genso Suikoden I & II'.

Parameters

dlId	The ID of the display list which stall address will be modified.
stall	A new stall address.

Returns

SCE_ERROR_OK on success, otherwise <0 on error.

sceKernelGetThreadId()

s32 sceKernelGetThreadId

(

void

)

Gets the current thread ID.

Returns

The current thread ID, otherwise <0 on error.

sceKernelCheckThreadStack()

s32 sceKernelCheckThreadStack

(

void

)

Checks how much stack space is left for the current thread.

Returns

The current thread's stack space available, otherwise <0 on error.

sceKernelGetTlsAddr()

void * sceKernelGetTlsAddr

(

SceUID

uid

)

Gets a tls address.

Parameters

uid	Unique tls identifier.

Returns

A pointer, otherwise NULL on error.

sceKernelTryLockLwMutex()

s32 sceKernelTryLockLwMutex	(	SceLwMutex *	mutex,
		s32	count
	)

Tries to lock a lightweight mutex.

This function is non-blocking. If the mutex is flagged as recursive, count can be >1. For more information, see http://linux.die.net/man/3/pthread_mutex_trylock

Parameters

mutex	Pointer to a lightweight mutex structure.
count	The lock counter increment.

Returns

SCE_ERROR_OK on success, otherwise SCE_ERROR_KERNEL_LWMUTEX_LOCKED on error.

sceKernelTryLockLwMutex_600()

s32 sceKernelTryLockLwMutex_600	(	SceLwMutex *	mutex,
		s32	count
	)

Tries to lock a lightweight mutex (6.xx version).

This function is non-blocking. It could return SCE_ERROR_KERNEL_LWMUTEX_LOCKED. Unlike sceKernelTryLockLwMutex(), the error codes are more informative. If the mutex is flagged as recursive, count can be >1. For more information, see http://linux.die.net/man/3/pthread_mutex_trylock

Parameters

mutex	Pointer to a lightweight mutex structure.
count	The lock counter increment.

Returns

SCE_ERROR_OK on success, otherwise <0 on error.

sceKernelLockLwMutexCB()

s32 sceKernelLockLwMutexCB	(	SceLwMutex *	mutex,
		s32	count
	)

Locks a lightweight mutex (callback).

This function can be blocking if the mutex is already locked. If the mutex is flagged as recursive, count can be >1. For more information, see http://linux.die.net/man/3/pthread_mutex_lock

Parameters

mutex	Pointer to a lightweight mutex structure.
count	The lock counter increment.

Returns

SCE_ERROR_OK on success, otherwise <0 on error.

sceKernelLockLwMutex()

s32 sceKernelLockLwMutex	(	SceLwMutex *	mutex,
		s32	count
	)

Locks a lightweight mutex.

This function can be blocking if the mutex is already locked. If the mutex is flagged as recursive, count can be >1. For more information, see http://linux.die.net/man/3/pthread_mutex_lock

Parameters

mutex	Pointer to a lightweight mutex structure.
count	The lock counter increment.

Returns

SCE_ERROR_OK on success, otherwise <0 on error.

sceKernelUnlockLwMutex()

s32 sceKernelUnlockLwMutex	(	SceLwMutex *	mutex,
		s32	count
	)

Unlocks a lightweight mutex.

This function is non-blocking. If the mutex is flagged as recursive, count can be >1. For more information, see http://linux.die.net/man/3/pthread_mutex_unlock

Parameters

mutex	Pointer to a lightweight mutex structure.
count	The lock counter decrement.

Returns

SCE_ERROR_OK on success, otherwise <0 on error.

Kernel_Library_3AD10D4D()

s32 Kernel_Library_3AD10D4D

(

SceLwMutex *

mutex

)

Gets the lock count of a lightweight mutex.

Parameters

mutex

Pointer to a lightweight mutex structure.

Returns

The mutex's lock count, otherwise <0 on error.

sceKernelReferLwMutexStatus()

s32 sceKernelReferLwMutexStatus	(	SceLwMutex *	mutex,
		u32 *	addr
	)

\fixme Refers the lightweight mutex's status.

Parameters

mutex	Pointer to a lightweight mutex structure.
addr	Unknown.

Returns

Unknown, may be SCE_ERROR_OK on success and <0 on error.

sceKernelMemcpy()

void * sceKernelMemcpy	(	void *	dst,
		const void *	src,
		SceSize	size
	)

Copies a block of memory.

See http://www.cplusplus.com/reference/cstring/memcpy/

Parameters

dst	Pointer to the memory block where the content will be copied.
src	Pointer to the data source.
size	Number of bytes to copy.

Returns

Value of dst.

sceKernelMemset()

void * sceKernelMemset	(	void *	dst,
		s8	val,
		SceSize	size
	)

Fills a block of memory.

See http://www.cplusplus.com/reference/cstring/memset/

Parameters

dst	Pointer to the memory block to fill.
val	Value to be set.
size	Number of bytes to be set.

Returns

Value of dst.