diff options
Diffstat (limited to 'MdePkg')
| -rw-r--r-- | MdePkg/Library/BaseLib/BaseLib.inf | 2 | ||||
| -rw-r--r-- | MdePkg/Library/BaseLib/Ia32/LRotU64.nasm | 50 |
2 files changed, 52 insertions, 0 deletions
diff --git a/MdePkg/Library/BaseLib/BaseLib.inf b/MdePkg/Library/BaseLib/BaseLib.inf index 8838b9dc46..35d61cc5d8 100644 --- a/MdePkg/Library/BaseLib/BaseLib.inf +++ b/MdePkg/Library/BaseLib/BaseLib.inf @@ -303,6 +303,7 @@ Ia32/MultU64x32.asm | INTEL
Ia32/LShiftU64.nasm| INTEL
Ia32/LShiftU64.asm | INTEL
+ Ia32/LRotU64.nasm| INTEL
Ia32/LRotU64.asm | INTEL
Ia32/LongJump.asm | INTEL
Ia32/Invd.asm | INTEL
@@ -363,6 +364,7 @@ Ia32/MultU64x32.S | GCC
Ia32/RRotU64.nasm| GCC
Ia32/RRotU64.S | GCC
+ Ia32/LRotU64.nasm| GCC
Ia32/LRotU64.S | GCC
Ia32/ARShiftU64.S | GCC
Ia32/RShiftU64.nasm| GCC
diff --git a/MdePkg/Library/BaseLib/Ia32/LRotU64.nasm b/MdePkg/Library/BaseLib/Ia32/LRotU64.nasm new file mode 100644 index 0000000000..f0d53dbed6 --- /dev/null +++ b/MdePkg/Library/BaseLib/Ia32/LRotU64.nasm @@ -0,0 +1,50 @@ +;------------------------------------------------------------------------------
+;
+; 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:
+;
+; LRotU64.nasm
+;
+; Abstract:
+;
+; 64-bit left rotation for Ia32
+;
+;------------------------------------------------------------------------------
+
+ SECTION .text
+
+;------------------------------------------------------------------------------
+; UINT64
+; EFIAPI
+; InternalMathLRotU64 (
+; IN UINT64 Operand,
+; IN UINTN Count
+; );
+;------------------------------------------------------------------------------
+global ASM_PFX(InternalMathLRotU64)
+ASM_PFX(InternalMathLRotU64):
+ push ebx
+ mov cl, [esp + 16]
+ mov edx, [esp + 12]
+ mov eax, [esp + 8]
+ shld ebx, edx, cl
+ shld edx, eax, cl
+ ror ebx, cl
+ shld eax, ebx, cl
+ test cl, 32 ; Count >= 32?
+ jz .0
+ mov ecx, eax
+ mov eax, edx
+ mov edx, ecx
+.0:
+ pop ebx
+ ret
+
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