diff options
Diffstat (limited to 'MdePkg/Library/BaseLib/Ia32/LShiftU64.asm')
| -rw-r--r-- | MdePkg/Library/BaseLib/Ia32/LShiftU64.asm | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/MdePkg/Library/BaseLib/Ia32/LShiftU64.asm b/MdePkg/Library/BaseLib/Ia32/LShiftU64.asm index 9ce946ddd1..6c3d9a4ee6 100644 --- a/MdePkg/Library/BaseLib/Ia32/LShiftU64.asm +++ b/MdePkg/Library/BaseLib/Ia32/LShiftU64.asm @@ -23,11 +23,19 @@ .model flat,C
.code
+;------------------------------------------------------------------------------
+; UINT64
+; EFIAPI
+; InternalMathLShiftU64 (
+; IN UINT64 Operand,
+; IN UINTN Count
+; );
+;------------------------------------------------------------------------------
InternalMathLShiftU64 PROC
mov cl, [esp + 12]
xor eax, eax
mov edx, [esp + 4]
- test cl, 32
+ test cl, 32 ; Count >= 32?
cmovz eax, edx
cmovz edx, [esp + 8]
shld edx, eax, cl
|