diff options
Diffstat (limited to 'MdePkg/Library/BaseLib/X64/ReadTsc.asm')
| -rw-r--r-- | MdePkg/Library/BaseLib/X64/ReadTsc.asm | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/MdePkg/Library/BaseLib/X64/ReadTsc.asm b/MdePkg/Library/BaseLib/X64/ReadTsc.asm index 25fa2cc5d8..7c45eebd54 100644 --- a/MdePkg/Library/BaseLib/X64/ReadTsc.asm +++ b/MdePkg/Library/BaseLib/X64/ReadTsc.asm @@ -32,8 +32,8 @@ ;------------------------------------------------------------------------------
AsmReadTsc PROC
rdtsc
- shl rax, 20h
- shrd rax, rdx, 20h
+ shl rdx, 20h
+ or rax, rdx
ret
AsmReadTsc ENDP
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