Initial import.

[mirror_edk2.git] / MdePkg / Library / BaseMemoryLibMmx / ia32 / SetMem16.asm

;------------------------------------------------------------------------------\r
;\r
; Copyright (c) 2006, 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
;   SetMem16.asm\r
;\r
; Abstract:\r
;\r
;   SetMem16 function\r
;\r
; Notes:\r
;\r
;------------------------------------------------------------------------------\r
\r
    .686\r
    .model  flat,C\r
    .xmm\r
    .code\r
\r
;------------------------------------------------------------------------------\r
;  VOID *\r
;  _mem_SetMem16 (\r
;    IN VOID   *Buffer,\r
;    IN UINTN  Count,\r
;    IN UINT16 Value\r
;    )\r
;------------------------------------------------------------------------------\r
InternalMemSetMem16 PROC    USES    edi\r
    mov     edx, [esp + 12]\r
    mov     edi, [esp + 8]\r
    mov     ecx, edx\r
    and     edx, 3\r
    shr     ecx, 2\r
    mov     eax, [esp + 16]\r
    jz      @SetWords\r
    movd    mm0, eax\r
    pshufw  mm0, mm0, 0\r
@@:\r
    movntq  [edi], mm0\r
    add     edi, 8\r
    loop    @B\r
    mfence\r
@SetWords:\r
    mov     ecx, edx\r
    rep     stosw\r
    mov     eax, [esp + 8]\r
    ret\r
InternalMemSetMem16 ENDP\r
\r
    END\r