]>
Commit | Line | Data |
---|---|---|
b1ff428c | 1 | #\r |
2 | # ConvertAsm.py: Automatically generated from CompareMem.asm\r | |
3 | #\r | |
4 | #------------------------------------------------------------------------------\r | |
5 | #\r | |
373ade0e | 6 | # Copyright (c) 2006 - 2008, Intel Corporation\r |
b1ff428c | 7 | # All rights reserved. This program and the accompanying materials\r |
8 | # are licensed and made available under the terms and conditions of the BSD License\r | |
9 | # which accompanies this distribution. The full text of the license may be found at\r | |
10 | # http://opensource.org/licenses/bsd-license.php\r | |
11 | #\r | |
12 | # THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
13 | # WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
14 | #\r | |
15 | # Module Name:\r | |
16 | #\r | |
17 | # CompareMem.S\r | |
18 | #\r | |
19 | # Abstract:\r | |
20 | #\r | |
21 | # CompareMem function\r | |
22 | #\r | |
23 | # Notes:\r | |
24 | #\r | |
25 | # The following BaseMemoryLib instances contain the same copy of this file:\r | |
26 | #\r | |
27 | # BaseMemoryLibRepStr\r | |
28 | # BaseMemoryLibMmx\r | |
29 | # BaseMemoryLibSse2\r | |
30 | # BaseMemoryLibOptDxe\r | |
31 | # BaseMemoryLibOptPei\r | |
32 | #\r | |
33 | #------------------------------------------------------------------------------\r | |
34 | \r | |
35 | \r | |
36 | #------------------------------------------------------------------------------\r | |
37 | # INTN\r | |
38 | # EFIAPI\r | |
39 | # InternalMemCompareMem (\r | |
40 | # IN CONST VOID *DestinationBuffer,\r | |
41 | # IN CONST VOID *SourceBuffer,\r | |
42 | # IN UINTN Length\r | |
43 | # );\r | |
44 | #------------------------------------------------------------------------------\r | |
45 | .intel_syntax noprefix\r | |
46 | .globl ASM_PFX(InternalMemCompareMem)\r | |
47 | ASM_PFX(InternalMemCompareMem):\r | |
48 | push rsi\r | |
49 | push rdi\r | |
50 | mov rsi, rcx\r | |
51 | mov rdi, rdx\r | |
52 | mov rcx, r8\r | |
53 | repe cmpsb\r | |
54 | movzx rax, byte ptr [rsi - 1]\r | |
55 | movzx rdx, byte ptr [rdi - 1]\r | |
56 | sub rax, rdx\r | |
57 | pop rdi\r | |
58 | pop rsi\r | |
59 | ret\r | |
60 | \r |