Changed GetPerformanceCounter() to use the most efficient mean to unsigned extend an UINT32 value.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@1343 6f19259b-4bc3-4df7-8a09-765794883524
2006-08-22 01:36:09 +00:00 · 2006-08-22 01:36:09 +00:00 · ddc316e240
parent dbf5dd75da
commit ddc316e240
1 changed files with 1 additions and 2 deletions
--- a/MdePkg/Library/BaseTimerLibLocalApic/x86TimerLib.c
+++ b/MdePkg/Library/BaseTimerLibLocalApic/x86TimerLib.c
@ -210,8 +210,7 @@ GetPerformanceCounter (
  VOID
  )
 {
-  volatile static UINT64 Mask = 0xffffffff;
-  return InternalX86GetTimerTick (InternalX86GetApicBase ()) & Mask;
+  return (UINT32)InternalX86GetTimerTick (InternalX86GetApicBase ());
 }

 /**