according to IA32 intel architecture spec, mwait instuction needs not the operands.

[mirror_edk2.git] / MdePkg / Library / BaseLib / Ia32 / Mwait.S

diff --git a/MdePkg/Library/BaseLib/Ia32/Mwait.S b/MdePkg/Library/BaseLib/Ia32/Mwait.S
index fc776166ea5177e22182f4a9ed6869d760ff6f24..18a37174819f9ebf5c9495705a3b3a937f3ab156 100644 (file)
--- a/MdePkg/Library/BaseLib/Ia32/Mwait.S
+++ b/MdePkg/Library/BaseLib/Ia32/Mwait.S
@@ -34,5 +34,5 @@ ASM_GLOBAL ASM_PFX(AsmMwait)
 ASM_PFX(AsmMwait):\r
     movl    4(%esp), %eax\r
     movl    8(%esp), %ecx\r
-    mwait   %eax, %ecx                  # mwait\r
+    mwait\r
     ret\r