Renamed remotely

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@6016 6f19259b-4bc3-4df7-8a09-765794883524

EdkCompatibilityPkg/Foundation/Library/CompilerStub/X64/memsetSSE2.asm

@@ -0,0 +1,74 @@
+;------------------------------------------------------------------------------
+;
+; Copyright (c) 2007, 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.asm
+;
+; Abstract:
+;
+;   memset function
+;
+; Notes:
+;
+;------------------------------------------------------------------------------
+
+    .code
+
+;------------------------------------------------------------------------------
+; VOID *
+; memset (
+;   OUT     VOID                      *Buffer,    --> rcx
+;   IN      UINT8                     Value,      --> rdx
+;   IN      UINTN                     Length      --> r8
+;   );
+;------------------------------------------------------------------------------
+memset   PROC    USES    rdi
+    mov     rax, rcx    
+    cmp     r8, 0                       ; if Size == 0, do nothing
+    je      @SetDone                    
+    mov     rax, rdx                    ; rdx <-> r8
+    mov     rdx, r8                     ; rdx <- Length
+    mov     r8, rax                     ; r8  <- Value
+    
+    mov     rdi, rcx                    ; rdi <- Buffer
+    mov     al, r8b                     ; al <- Value
+    mov     r9, rdi                     ; r9 <- Buffer as return value
+    xor     rcx, rcx
+    sub     rcx, rdi
+    and     rcx, 15                     ; rcx + rdi aligns on 16-byte boundary
+    jz      @F
+    cmp     rcx, rdx
+    cmova   rcx, rdx
+    sub     rdx, rcx
+    rep     stosb
+@@:
+    mov     rcx, rdx
+    and     rdx, 15
+    shr     rcx, 4
+    jz      @SetBytes
+    mov     ah, al                      ; ax <- Value repeats twice
+    movd    xmm0, eax                   ; xmm0[0..16] <- Value repeats twice
+    pshuflw xmm0, xmm0, 0               ; xmm0[0..63] <- Value repeats 8 times
+    movlhps xmm0, xmm0                  ; xmm0 <- Value repeats 16 times
+@@:
+    movdqa  [rdi], xmm0                 ; rdi should be 16-byte aligned
+    add     rdi, 16
+    loop    @B
+@SetBytes:
+    mov     ecx, edx                    ; high 32 bits of rcx are always zero
+    rep     stosb
+    mov     rax, r9                     ; rax <- Return value
+@SetDone:
+    ret
+memset   ENDP
+
+    END