diff options
| -rw-r--r-- | MdePkg/Library/BaseLib/BaseLib.inf | 2 | ||||
| -rw-r--r-- | MdePkg/Library/BaseLib/Ia32/LShiftU64.nasm | 45 |
2 files changed, 47 insertions, 0 deletions
diff --git a/MdePkg/Library/BaseLib/BaseLib.inf b/MdePkg/Library/BaseLib/BaseLib.inf index 68b317f4e5..8838b9dc46 100644 --- a/MdePkg/Library/BaseLib/BaseLib.inf +++ b/MdePkg/Library/BaseLib/BaseLib.inf @@ -301,6 +301,7 @@ Ia32/MultU64x64.asm | INTEL
Ia32/MultU64x32.nasm| INTEL
Ia32/MultU64x32.asm | INTEL
+ Ia32/LShiftU64.nasm| INTEL
Ia32/LShiftU64.asm | INTEL
Ia32/LRotU64.asm | INTEL
Ia32/LongJump.asm | INTEL
@@ -366,6 +367,7 @@ Ia32/ARShiftU64.S | GCC
Ia32/RShiftU64.nasm| GCC
Ia32/RShiftU64.S | GCC
+ Ia32/LShiftU64.nasm| GCC
Ia32/LShiftU64.S | GCC
Ia32/EnableCache.S | GCC
Ia32/DisableCache.S | GCC
diff --git a/MdePkg/Library/BaseLib/Ia32/LShiftU64.nasm b/MdePkg/Library/BaseLib/Ia32/LShiftU64.nasm new file mode 100644 index 0000000000..239e6dfabe --- /dev/null +++ b/MdePkg/Library/BaseLib/Ia32/LShiftU64.nasm @@ -0,0 +1,45 @@ +;------------------------------------------------------------------------------
+;
+; Copyright (c) 2006 - 2015, Intel Corporation. All rights reserved.<BR>
+; This program and the accompanying materials
+; are licensed and made available under the terms and conditions of the BSD License
+; which accompanies this distribution. The full text of the license may be found at
+; http://opensource.org/licenses/bsd-license.php.
+;
+; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+;
+; Module Name:
+;
+; LShiftU64.nasm
+;
+; Abstract:
+;
+; 64-bit left shift function for IA-32
+;
+;------------------------------------------------------------------------------
+
+ SECTION .text
+
+;------------------------------------------------------------------------------
+; UINT64
+; EFIAPI
+; InternalMathLShiftU64 (
+; IN UINT64 Operand,
+; IN UINTN Count
+; );
+;------------------------------------------------------------------------------
+global ASM_PFX(InternalMathLShiftU64)
+ASM_PFX(InternalMathLShiftU64):
+ mov cl, [esp + 12]
+ xor eax, eax
+ mov edx, [esp + 4]
+ test cl, 32 ; Count >= 32?
+ jnz .0
+ mov eax, edx
+ mov edx, [esp + 8]
+.0:
+ shld edx, eax, cl
+ shl eax, cl
+ ret
+
|