#\r
#------------------------------------------------------------------------------\r
#\r
-# Copyright (c) 2006 - 2008, Intel Corporation\r
+# Copyright (c) 2006 - 2009, 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
# IN UINTN Count\r
# )\r
#------------------------------------------------------------------------------\r
-.intel_syntax noprefix\r
-.globl ASM_PFX(InternalMemCopyMem)\r
+ASM_GLOBAL ASM_PFX(InternalMemCopyMem)\r
ASM_PFX(InternalMemCopyMem):\r
- push rsi\r
- push rdi\r
- mov rsi, rdx # rsi <- Source\r
- mov rdi, rcx # rdi <- Destination\r
- lea r9, [rsi + r8 - 1] # r9 <- End of Source\r
- cmp rsi, rdi\r
- mov rax, rdi # rax <- Destination as return value\r
+ pushq %rsi\r
+ pushq %rdi\r
+ movq %rdx, %rsi # rsi <- Source\r
+ movq %rcx, %rdi # rdi <- Destination\r
+ leaq -1(%rsi, %r8,), %r9 # r9 <- End of Source\r
+ cmpq %rdi, %rsi\r
+ movq %rdi, %rax # rax <- Destination as return value\r
jae _InternalMemCopyMem_al_0000\r
- cmp r9, rdi\r
+ cmpq %rdi, %r9\r
jae _atSym_CopyBackward # Copy backward if overlapped\r
_InternalMemCopyMem_al_0000:\r
- mov rcx, r8\r
- and r8, 7\r
- shr rcx, 3\r
+ movq %r8, %rcx\r
+ andq $7, %r8\r
+ shrq $3, %rcx\r
rep movsq # Copy as many Qwords as possible\r
jmp _atSym_CopyBytes\r
_atSym_CopyBackward:\r
- mov rsi, r9 # rsi <- End of Source\r
- lea rdi, [rdi + r8 - 1] # esi <- End of Destination\r
+ movq %r9, %rsi # rsi <- End of Source\r
+ leaq -1(%rdi, %r8), %rdi # rdi <- End of Destination\r
std # set direction flag\r
_atSym_CopyBytes:\r
- mov rcx, r8\r
+ movq %r8, %rcx\r
rep movsb # Copy bytes backward\r
cld\r
- pop rdi\r
- pop rsi\r
+ popq %rdi\r
+ popq %rsi\r
ret\r
\r