projects / mirror_edk2.git / blame
| Commit | Line | Data |
|---|---|---|
| f1baef62 | 1 | ;------------------------------------------------------------------------------\r |
| 2 | ;\r | |
| 373ade0e | 3 | ; Copyright (c) 2006 - 2008, Intel Corporation\r |
| f1baef62 | 4 | ; All rights reserved. This program and the accompanying materials\r |
| 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 |
| f1baef62 | 23 | ;\r |
| 24 | ; BaseMemoryLibRepStr\r | |
| 25 | ; BaseMemoryLibMmx\r | |
| 26 | ; BaseMemoryLibSse2\r | |
| 2bfb6009 LG |
27 | ; BaseMemoryLibOptDxe\r |
| 28 | ; BaseMemoryLibOptPei\r | |
| f1baef62 | 29 | ;\r |
| 30 | ;------------------------------------------------------------------------------\r | |
| 31 | \r | |
| 32 | .code\r | |
| 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 | |
| 43 | InternalMemCompareMem PROC USES rsi rdi\r | |
| 44 | mov rsi, rcx\r | |
| 45 | mov rdi, rdx\r | |
| 46 | mov rcx, r8\r | |
| 47 | repe cmpsb\r | |
| 48 | movzx rax, byte ptr [rsi - 1]\r | |
| 49 | movzx rdx, byte ptr [rdi - 1]\r | |
| 50 | sub rax, rdx\r | |
| 51 | ret\r | |
| 52 | InternalMemCompareMem ENDP\r | |
| 53 | \r | |
| 54 | END\r |