/** @file\r
- Memory-only library functions with no library constructor/destructor\r
+ Provides copy memory, fill memory, zero memory, and GUID functions.\r
+ \r
+ The Base Memory Library provides optimized implementations for common memory-based operations. \r
+ These functions should be used in place of coding your own loops to do equivalent common functions. \r
+ This allows optimized library implementations to help increase performance. \r
\r
- Copyright (c) 2006, Intel Corporation\r
- All rights reserved. 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
+Copyright (c) 2006 - 2008, Intel Corporation<BR>\r
+All rights reserved. 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
- Module Name: BaseMemoryLib.h\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
This function copies Length bytes from SourceBuffer to DestinationBuffer, and returns\r
DestinationBuffer. The implementation must be reentrant, and it must handle the case\r
where SourceBuffer overlaps DestinationBuffer.\r
- If Length is greater than (MAX_ADDRESS - DestinationBuffer + 1), then ASSERT(). \r
- If Length is greater than (MAX_ADDRESS - SourceBuffer + 1), then ASSERT(). \r
+ \r
+ If Length is greater than (MAX_ADDRESS - DestinationBuffer + 1), then ASSERT().\r
+ If Length is greater than (MAX_ADDRESS - SourceBuffer + 1), then ASSERT().\r
\r
@param DestinationBuffer Pointer to the destination buffer of the memory copy.\r
@param SourceBuffer Pointer to the source buffer of the memory copy.\r
Fills a target buffer with a byte value, and returns the target buffer.\r
\r
This function fills Length bytes of Buffer with Value, and returns Buffer.\r
- If Length is greater than (MAX_ADDRESS ? Buffer + 1), then ASSERT(). \r
+ \r
+ If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r
\r
@param Buffer Memory to set.\r
@param Length Number of bytes to set.\r
- @param Value Value of the set operation.\r
+ @param Value Value with which to fill Length bytes of Buffer.\r
\r
@return Buffer.\r
\r
Fills a target buffer with zeros, and returns the target buffer.\r
\r
This function fills Length bytes of Buffer with zeros, and returns Buffer.\r
+ \r
If Length > 0 and Buffer is NULL, then ASSERT().\r
- If Length is greater than (MAX_ADDRESS ? Buffer + 1), then ASSERT(). \r
+ If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r
\r
@param Buffer Pointer to the target buffer to fill with zeros.\r
@param Length Number of bytes in Buffer to fill with zeros.\r
If all Length bytes of the two buffers are identical, then 0 is returned. Otherwise, the\r
value returned is the first mismatched byte in SourceBuffer subtracted from the first\r
mismatched byte in DestinationBuffer.\r
- If Length > 0 and DestinationBuffer is NULL and Length > 0, then ASSERT().\r
- If Length > 0 and SourceBuffer is NULL and Length > 0, then ASSERT().\r
- If Length is greater than (MAX_ADDRESS - DestinationBuffer + 1), then ASSERT(). \r
- If Length is greater than (MAX_ADDRESS - SourceBuffer + 1), then ASSERT(). \r
+ \r
+ If Length > 0 and DestinationBuffer is NULL, then ASSERT().\r
+ If Length > 0 and SourceBuffer is NULL, then ASSERT().\r
+ If Length is greater than (MAX_ADDRESS - DestinationBuffer + 1), then ASSERT().\r
+ If Length is greater than (MAX_ADDRESS - SourceBuffer + 1), then ASSERT().\r
\r
@param DestinationBuffer Pointer to the destination buffer to compare.\r
@param SourceBuffer Pointer to the source buffer to compare.\r
@return 0 All Length bytes of the two buffers are identical.\r
@retval Non-zero The first mismatched byte in SourceBuffer subtracted from the first\r
mismatched byte in DestinationBuffer.\r
-\r
+ \r
**/\r
INTN\r
EFIAPI\r
address to the highest address for an 8-bit value that matches Value. If a match is found,\r
then a pointer to the matching byte in the target buffer is returned. If no match is found,\r
then NULL is returned. If Length is 0, then NULL is returned.\r
+ \r
If Length > 0 and Buffer is NULL, then ASSERT().\r
- If Length is greater than (MAX_ADDRESS ? Buffer + 1), then ASSERT(). \r
+ If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r
\r
@param Buffer Pointer to the target buffer to scan.\r
@param Length Number of bytes in Buffer to scan.\r
address to the highest address for a 16-bit value that matches Value. If a match is found,\r
then a pointer to the matching byte in the target buffer is returned. If no match is found,\r
then NULL is returned. If Length is 0, then NULL is returned.\r
+ \r
If Length > 0 and Buffer is NULL, then ASSERT().\r
If Buffer is not aligned on a 16-bit boundary, then ASSERT().\r
If Length is not aligned on a 16-bit boundary, then ASSERT().\r
- If Length is greater than (MAX_ADDRESS ? Buffer + 1), then ASSERT(). \r
+ If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r
\r
@param Buffer Pointer to the target buffer to scan.\r
@param Length Number of bytes in Buffer to scan.\r
address to the highest address for a 32-bit value that matches Value. If a match is found,\r
then a pointer to the matching byte in the target buffer is returned. If no match is found,\r
then NULL is returned. If Length is 0, then NULL is returned.\r
+ \r
If Length > 0 and Buffer is NULL, then ASSERT().\r
If Buffer is not aligned on a 32-bit boundary, then ASSERT().\r
If Length is not aligned on a 32-bit boundary, then ASSERT().\r
- If Length is greater than (MAX_ADDRESS ? Buffer + 1), then ASSERT(). \r
+ If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r
\r
@param Buffer Pointer to the target buffer to scan.\r
@param Length Number of bytes in Buffer to scan.\r
address to the highest address for a 64-bit value that matches Value. If a match is found,\r
then a pointer to the matching byte in the target buffer is returned. If no match is found,\r
then NULL is returned. If Length is 0, then NULL is returned.\r
+ \r
If Length > 0 and Buffer is NULL, then ASSERT().\r
If Buffer is not aligned on a 64-bit boundary, then ASSERT().\r
If Length is not aligned on a 64-bit boundary, then ASSERT().\r
- If Length is greater than (MAX_ADDRESS ? Buffer + 1), then ASSERT(). \r
+ If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r
\r
@param Buffer Pointer to the target buffer to scan.\r
@param Length Number of bytes in Buffer to scan.\r
\r
This function copies the contents of the 128-bit GUID specified by SourceGuid to\r
DestinationGuid, and returns DestinationGuid.\r
+ \r
If DestinationGuid is NULL, then ASSERT().\r
If SourceGuid is NULL, then ASSERT().\r
\r
\r
This function compares Guid1 to Guid2. If the GUIDs are identical then TRUE is returned.\r
If there are any bit differences in the two GUIDs, then FALSE is returned.\r
+ \r
If Guid1 is NULL, then ASSERT().\r
If Guid2 is NULL, then ASSERT().\r
\r
GUID value that matches Guid. If a match is found, then a pointer to the matching\r
GUID in the target buffer is returned. If no match is found, then NULL is returned.\r
If Length is 0, then NULL is returned.\r
+ \r
If Length > 0 and Buffer is NULL, then ASSERT().\r
If Buffer is not aligned on a 32-bit boundary, then ASSERT().\r
If Length is not aligned on a 128-bit boundary, then ASSERT().\r
- If Length is greater than (MAX_ADDRESS ? Buffer + 1), then ASSERT(). \r
+ If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r
\r
@param Buffer Pointer to the target buffer to scan.\r
@param Length Number of bytes in Buffer to scan.\r
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