# # ConvertAsm.py: Automatically generated from SetMem.asm # #------------------------------------------------------------------------------ # # Copyright (c) 2006 - 2009, Intel Corporation. All rights reserved.
# This program and the accompanying materials # are licensed and made available under the terms and conditions of the BSD License # which accompanies this distribution. The full text of the license may be found at # http://opensource.org/licenses/bsd-license.php # # THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, # WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. # # Module Name: # # SetMem.S # # Abstract: # # SetMem function # # Notes: # #------------------------------------------------------------------------------ #------------------------------------------------------------------------------ # VOID * # EFIAPI # InternalMemSetMem ( # IN VOID *Buffer, # IN UINTN Count, # IN UINT8 Value # ) #------------------------------------------------------------------------------ ASM_GLOBAL ASM_PFX(InternalMemSetMem) ASM_PFX(InternalMemSetMem): pushq %rdi movq %rcx, %rdi # rdi <- Buffer movb %r8b, %al # al <- Value movq %rdi, %r9 # r9 <- Buffer as return value xorq %rcx, %rcx subq %rdi, %rcx andq $15, %rcx # rcx + rdi aligns on 16-byte boundary jz L0 cmpq %rdx, %rcx cmova %rdx, %rcx subq %rcx, %rdx rep stosb L0: movq %rdx, %rcx andq $15, %rdx shrq $4, %rcx jz L_SetBytes movb %al, %ah # ax <- Value repeats twice movdqa %xmm0, 0x10(%rsp) # save xmm0 movd %eax, %xmm0 # xmm0[0..16] <- Value repeats twice pshuflw $0, %xmm0, %xmm0 # xmm0[0..63] <- Value repeats 8 times movlhps %xmm0, %xmm0 # xmm0 <- Value repeats 16 times L1: movntdq %xmm0, (%rdi) # rdi should be 16-byte aligned add $16, %rdi loop L1 mfence movdqa 0x10(%rsp), %xmm0 # restore xmm0 L_SetBytes: movl %edx, %ecx # high 32 bits of rcx are always zero rep stosb movq %r9, %rax # rax <- Return value popq %rdi ret