+++ /dev/null
-/** @file\r
-\r
- Copyright (c) 2012-2013, ARM Ltd. All rights reserved.<BR>\r
-\r
- This program and the accompanying materials\r
- are licensed and made available under the terms and conditions of the BSD License\r
- which accompanies this distribution. The full text of the license may be found at\r
- http://opensource.org/licenses/bsd-license.php\r
-\r
- THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
- WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
-\r
-**/\r
-\r
-#include "MemLibInternals.h"\r
-\r
-/**\r
- Set Buffer to Value for Size bytes.\r
-\r
- @param Buffer Memory to set.\r
- @param Length Number of bytes to set\r
- @param Value Value of the set operation.\r
-\r
- @return Buffer\r
-\r
-**/\r
-VOID *\r
-EFIAPI\r
-InternalMemSetMem (\r
- OUT VOID *Buffer,\r
- IN UINTN Length,\r
- IN UINT8 Value\r
- )\r
-{\r
- //\r
- // Declare the local variables that actually move the data elements as\r
- // volatile to prevent the optimizer from replacing this function with\r
- // the intrinsic memset()\r
- //\r
- volatile UINT8 *Pointer8;\r
- volatile UINT32 *Pointer32;\r
- volatile UINT64 *Pointer64;\r
- UINT32 Value32;\r
- UINT64 Value64;\r
-\r
- if ((((UINTN)Buffer & 0x7) == 0) && (Length >= 8)) {\r
- // Generate the 64bit value\r
- Value32 = (Value << 24) | (Value << 16) | (Value << 8) | Value;\r
- Value64 = (((UINT64)Value32) << 32) | Value32;\r
-\r
- Pointer64 = (UINT64*)Buffer;\r
- while (Length >= 8) {\r
- *(Pointer64++) = Value64;\r
- Length -= 8;\r
- }\r
-\r
- // Finish with bytes if needed\r
- Pointer8 = (UINT8*)Pointer64;\r
- while (Length-- > 0) {\r
- *(Pointer8++) = Value;\r
- }\r
- } else if ((((UINTN)Buffer & 0x3) == 0) && (Length >= 4)) {\r
- // Generate the 32bit value\r
- Value32 = (Value << 24) | (Value << 16) | (Value << 8) | Value;\r
-\r
- Pointer32 = (UINT32*)Buffer;\r
- while (Length >= 4) {\r
- *(Pointer32++) = Value32;\r
- Length -= 4;\r
- }\r
-\r
- // Finish with bytes if needed\r
- Pointer8 = (UINT8*)Pointer32;\r
- while (Length-- > 0) {\r
- *(Pointer8++) = Value;\r
- }\r
- } else {\r
- Pointer8 = (UINT8*)Buffer;\r
- while (Length-- > 0) {\r
- *(Pointer8++) = Value;\r
- }\r
- }\r
- return Buffer;\r
-}\r