projects / mirror_edk2.git / blame
| Commit | Line | Data |
|---|---|---|
| c5ecf6c1 | 1 | #------------------------------------------------------------------------------\r |
| 2 | #\r | |
| 085c3968 HT |
3 | # Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>\r |
| 4 | # This program and the accompanying materials\r | |
| c5ecf6c1 | 5 | # are licensed and made available under the terms and conditions of the BSD License\r |
| 6 | # which accompanies this distribution. The full text of the license may be found at\r | |
| 7 | # http://opensource.org/licenses/bsd-license.php\r | |
| 8 | #\r | |
| 9 | # THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
| 10 | # WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
| 11 | #\r | |
| 12 | # Module Name:\r | |
| 13 | #\r | |
| 14 | # CompareMem.Asm\r | |
| 15 | #\r | |
| 16 | # Abstract:\r | |
| 17 | #\r | |
| 18 | # CompareMem function\r | |
| 19 | #\r | |
| 20 | # Notes:\r | |
| 21 | #\r | |
| 2bfb6009 | 22 | # The following BaseMemoryLib instances contain the same copy of this file:\r |
| c5ecf6c1 | 23 | #\r |
| 24 | # BaseMemoryLibRepStr\r | |
| 25 | # BaseMemoryLibMmx\r | |
| 26 | # BaseMemoryLibSse2\r | |
| 2bfb6009 LG |
27 | # BaseMemoryLibOptDxe\r |
| 28 | # BaseMemoryLibOptPei\r | |
| c5ecf6c1 | 29 | #\r |
| 30 | #------------------------------------------------------------------------------\r | |
| 31 | \r | |
| 132f41f0 | 32 | ASM_GLOBAL ASM_PFX(InternalMemCompareMem)\r |
| c5ecf6c1 | 33 | \r |
| 34 | #------------------------------------------------------------------------------\r | |
| 35 | # INTN\r | |
| 36 | # EFIAPI\r | |
| 37 | # InternalMemCompareMem (\r | |
| 38 | # IN CONST VOID *DestinationBuffer,\r | |
| 39 | # IN CONST VOID *SourceBuffer,\r | |
| 40 | # IN UINTN Length\r | |
| 41 | # );\r | |
| 42 | #------------------------------------------------------------------------------\r | |
| d3c0cbce | 43 | ASM_PFX(InternalMemCompareMem):\r |
| c5ecf6c1 | 44 | push %esi\r |
| 45 | push %edi\r | |
| 46 | movl 12(%esp), %esi\r | |
| 47 | movl 16(%esp), %edi\r | |
| 48 | movl 20(%esp), %ecx\r | |
| 49 | repe cmpsb\r | |
| 50 | movzbl -1(%esi), %eax\r | |
| 51 | movzbl -1(%edi), %edx\r | |
| 52 | subl %edx, %eax\r | |
| 53 | pop %edi\r | |
| 54 | pop %esi\r | |
| 55 | ret\r |