rvtr/twl_wrapsdk
1
Fork 0
mirror of https://github.com/rvtr/twl_wrapsdk.git synced 2025-10-31 06:11:10 -04:00
Code Issues Actions Packages Projects Releases Wiki Activity

add OS_SpiWaitSysCycles

Browse Source 
git-svn-id: file:///Users/lillianskinner/Downloads/platinum/twl/twl_wrapsdk/trunk@86 4ee2a332-4b2b-5046-8439-1ba90f034370
This commit is contained in:
yutaka 2007-05-25 09:27:39 +00:00
parent 6653d3d002
commit afedd1de1d
1 changed files with 26 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

27
build/libraries/os/common/os_system.c
View File

@ -311,6 +311,31 @@ void OS_SpinWait(u32 cycle)
}
#endif
/*---------------------------------------------------------------------------*
Name: OS_SpinWaitSysCycles
Description: Spin and Wait for specified SYSTEM cycles at least
Arguments: cycles waiting SYSTEM cycle
Returns: None
*---------------------------------------------------------------------------*/
#if defined(SDK_ARM9)
void OS_SpinWaitSysCycles( u32 cycle )
{
cycle <<= (1 + ((reg_CFG_CLK & REG_CFG_CLK_ARM2X_MASK) >> REG_CFG_CLK_ARM2X_SHIFT));
if (cycle > 16)
{
OS_SpinWait(cycle - 16);
}
}
#else
void OS_SpinWaitSysCycles(u32 cycle)
{
OS_SpinWait((s32)cycle / 4);
}
#endif
/*---------------------------------------------------------------------------*
Name: OS_WaitInterrupt
@ -356,7 +381,7 @@ void OS_WaitInterrupt(BOOL clear, OSIrqMask irqFlags)
Name: OS_WaitVBlankIntr
Description: wait till vblank interrupt occurred.
the difference between SVC_WaitVBlankIntr and OS_WaitVBlankIntr is:
the difference between SVC_WaitVBlankIntr and OS_WaitVBlankIntr is:
OS_WaitVBlankIntr does switch thread,
SVC_WaitVBlankIntr doesn't switch thread.