Initial import.

[mirror_edk2.git] / MdePkg / Library / BaseMemoryLibSse2 / ia32 / ScanMem64.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
;   ScanMem64.Asm\r
;\r
; Abstract:\r
;\r
;   ScanMem64 function\r
;\r
; Notes:\r
;\r
;   The following BaseMemoryLib instances share the same version of this file:\r
;\r
;       BaseMemoryLibRepStr\r
;       BaseMemoryLibMmx\r
;       BaseMemoryLibSse2\r
;\r
;------------------------------------------------------------------------------\r
\r
    .686\r
    .model  flat,C\r
    .code\r
\r
InternalMemScanMem64    PROC    USES    edi\r
    mov     ecx, [esp + 12]\r
    mov     eax, [esp + 16]\r
    mov     edx, [esp + 20]\r
    mov     edi, [esp + 8]\r
@@:\r
    cmp     eax, [edi]\r
    lea     edi, [edi + 8]\r
    loopne  @B\r
    jne     @F\r
    cmp     edx, [edi - 4]\r
    jecxz   @F\r
    jne     @B\r
@@:\r
    lea     eax, [edi - 8]\r
    cmovne  eax, ecx\r
    ret\r
InternalMemScanMem64    ENDP\r
\r
    END\r