1 # 2 # ConvertAsm.py: Automatically generated from CompareMem.asm 3 # 4 #------------------------------------------------------------------------------ 5 # 6 # Copyright (c) 2006 - 2009, Intel Corporation. All rights reserved.<BR> 7 # This program and the accompanying materials 8 # are licensed and made available under the terms and conditions of the BSD License 9 # which accompanies this distribution. The full text of the license may be found at 10 # http://opensource.org/licenses/bsd-license.php. 11 # 12 # THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 13 # WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 14 # 15 # Module Name: 16 # 17 # CompareMem.S 18 # 19 # Abstract: 20 # 21 # CompareMem function 22 # 23 # Notes: 24 # 25 # The following BaseMemoryLib instances contain the same copy of this file: 26 # 27 # BaseMemoryLibRepStr 28 # BaseMemoryLibMmx 29 # BaseMemoryLibSse2 30 # BaseMemoryLibOptDxe 31 # BaseMemoryLibOptPei 32 # 33 #------------------------------------------------------------------------------ 34 35 36 #------------------------------------------------------------------------------ 37 # INTN 38 # EFIAPI 39 # InternalMemCompareMem ( 40 # IN CONST VOID *DestinationBuffer, 41 # IN CONST VOID *SourceBuffer, 42 # IN UINTN Length 43 # ); 44 #------------------------------------------------------------------------------ 45 ASM_GLOBAL ASM_PFX(InternalMemCompareMem) 46 ASM_PFX(InternalMemCompareMem): 47 pushq %rsi 48 pushq %rdi 49 movq %rcx, %rsi 50 movq %rdx, %rdi 51 movq %r8, %rcx 52 repe cmpsb 53 movzbq -1(%rsi), %rax 54 movzbq -1(%rdi), %rdx 55 subq %rdx, %rax 56 popq %rdi 57 popq %rsi 58 ret 59 60
