diff options
| -rw-r--r-- | MdePkg/Library/BaseLib/BaseLib.inf | 2 | ||||
| -rw-r--r-- | MdePkg/Library/BaseLib/Ia32/SwapBytes64.nasm | 40 |
2 files changed, 42 insertions, 0 deletions
diff --git a/MdePkg/Library/BaseLib/BaseLib.inf b/MdePkg/Library/BaseLib/BaseLib.inf index bcd7b5bf1e..dd81c671cb 100644 --- a/MdePkg/Library/BaseLib/BaseLib.inf +++ b/MdePkg/Library/BaseLib/BaseLib.inf @@ -215,6 +215,7 @@ Ia32/WriteCr0.asm | INTEL
Ia32/WriteMsr64.nasm| INTEL
Ia32/WriteMsr64.asm | INTEL
+ Ia32/SwapBytes64.nasm| INTEL
Ia32/SwapBytes64.asm | INTEL
Ia32/SetJump.asm | INTEL
Ia32/RRotU64.asm | INTEL
@@ -302,6 +303,7 @@ Ia32/CpuId.S | GCC
Ia32/LongJump.S | GCC
Ia32/SetJump.S | GCC
+ Ia32/SwapBytes64.nasm| GCC
Ia32/SwapBytes64.S | GCC
Ia32/DivU64x64Remainder.nasm| GCC
Ia32/DivU64x64Remainder.S | GCC
diff --git a/MdePkg/Library/BaseLib/Ia32/SwapBytes64.nasm b/MdePkg/Library/BaseLib/Ia32/SwapBytes64.nasm new file mode 100644 index 0000000000..63c20c162c --- /dev/null +++ b/MdePkg/Library/BaseLib/Ia32/SwapBytes64.nasm @@ -0,0 +1,40 @@ +;------------------------------------------------------------------------------
+;
+; Copyright (c) 2006, 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:
+;
+; CpuId.Asm
+;
+; Abstract:
+;
+; AsmCpuid function
+;
+; Notes:
+;
+;------------------------------------------------------------------------------
+
+ SECTION .text
+
+;------------------------------------------------------------------------------
+; UINT64
+; EFIAPI
+; InternalMathSwapBytes64 (
+; IN UINT64 Operand
+; );
+;------------------------------------------------------------------------------
+global ASM_PFX(InternalMathSwapBytes64)
+ASM_PFX(InternalMathSwapBytes64):
+ mov eax, [esp + 8] ; eax <- upper 32 bits
+ mov edx, [esp + 4] ; edx <- lower 32 bits
+ bswap eax
+ bswap edx
+ ret
+
|