4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync;------------------------------------------------------------------------------
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync; Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync; This program and the accompanying materials
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync; are licensed and made available under the terms and conditions of the BSD License
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync; which accompanies this distribution. The full text of the license may be found at
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync; Module Name:
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync; SetMem function
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync;------------------------------------------------------------------------------
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync;------------------------------------------------------------------------------
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync; InternalMemSetMem (
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync; IN VOID *Buffer,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync; IN UINTN Count,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync; IN UINT8 Value
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync;------------------------------------------------------------------------------
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncInternalMemSetMem PROC USES rdi
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync mov rdi, rcx ; rdi <- Buffer
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync mov al, r8b ; al <- Value
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync mov r9, rdi ; r9 <- Buffer as return value
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync xor rcx, rcx
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync sub rcx, rdi
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync and rcx, 15 ; rcx + rdi aligns on 16-byte boundary
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync cmp rcx, rdx
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync cmova rcx, rdx
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync sub rdx, rcx
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync mov rcx, rdx
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync and rdx, 15
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync jz @SetBytes
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync mov ah, al ; ax <- Value repeats twice
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync movdqa [rsp + 10h], xmm0 ; save xmm0
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync movd xmm0, eax ; xmm0[0..16] <- Value repeats twice
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync pshuflw xmm0, xmm0, 0 ; xmm0[0..63] <- Value repeats 8 times
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync movlhps xmm0, xmm0 ; xmm0 <- Value repeats 16 times
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync movntdq [rdi], xmm0 ; rdi should be 16-byte aligned
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync add rdi, 16
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync movdqa xmm0, [rsp + 10h] ; restore xmm0
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync mov ecx, edx ; high 32 bits of rcx are always zero
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync mov rax, r9 ; rax <- Return value
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncInternalMemSetMem ENDP