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A workaround to a compiler bug that causes the high order 32 bits of GetPerformanceCounter() being indeterminate.

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git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@1336 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
bxing
2006-08-21 09:32:26 +00:00
parent 7bcb8d17b2
commit f094c270ee
1 changed files with 2 additions and 1 deletions
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3
MdePkg/Library/BaseTimerLibLocalApic/x86TimerLib.c
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@@ -210,7 +210,8 @@ GetPerformanceCounter (
VOID VOID
) )
{ {
return (UINT32)InternalX86GetTimerTick (InternalX86GetApicBase ()); volatile static UINT64 Mask = 0xffffffff;
return InternalX86GetTimerTick (InternalX86GetApicBase ()) & Mask;
} }
/** /**