Changing source filename to match name changing.

[mirror_edk2.git] / EdkCompatibilityPkg / Foundation / Library / CompilerStub / x64 / memsetRep4.asm

;------------------------------------------------------------------------------\r
;\r
; Copyright (c) 2007, 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
; http://opensource.org/licenses/bsd-license.php\r
;\r
; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
;\r
; Module Name:\r
;\r
;   SetMem.asm\r
;\r
; Abstract:\r
;\r
;   memset function\r
;\r
; Notes:\r
;\r
;------------------------------------------------------------------------------\r
\r
    .code\r
\r
;------------------------------------------------------------------------------\r
;  VOID *\r
;  memset (\r
;    OUT VOID   *Buffer,\r
;    IN  UINT8  Value,\r
;    IN  UINTN  Count\r
;    )\r
;------------------------------------------------------------------------------\r
memset   PROC    USES    rdi\r
    cmp     r8, 0                      ; if Size == 0, do nothing\r
    mov     r9,  rcx\r
    je      @SetDone\r
    mov     al,  dl\r
    mov     ah,  al\r
    shrd    edx, eax, 16\r
    shld    eax, edx, 16\r
    mov     rdi, rcx\r
    mov     rcx, r8\r
    shr     rcx, 2\r
    rep     stosd\r
    mov     rcx, r8\r
    and     rcx, 3\r
    rep     stosb\r
@SetDone:\r
    mov     rax, r9\r
    ret\r
memset   ENDP\r
\r
    END\r
\r