MdePkg: Replace BSD License with BSD+Patent License

[mirror_edk2.git] / MdePkg / Library / BaseMemoryLibMmx / Ia32 / ZeroMem.nasm

;------------------------------------------------------------------------------\r
;\r
; Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>\r
; SPDX-License-Identifier: BSD-2-Clause-Patent\r
;\r
; Module Name:\r
;\r
;   ZeroMem.nasm\r
;\r
; Abstract:\r
;\r
;   ZeroMem function\r
;\r
; Notes:\r
;\r
;------------------------------------------------------------------------------\r
\r
    SECTION .text\r
\r
;------------------------------------------------------------------------------\r
;  VOID *\r
;  InternalMemZeroMem (\r
;    IN VOID   *Buffer,\r
;    IN UINTN  Count\r
;    );\r
;------------------------------------------------------------------------------\r
global ASM_PFX(InternalMemZeroMem)\r
ASM_PFX(InternalMemZeroMem):\r
    push    edi\r
    mov     edi, [esp + 8]\r
    mov     ecx, [esp + 12]\r
    mov     edx, ecx\r
    shr     ecx, 3\r
    jz      @ZeroBytes\r
    pxor    mm0, mm0\r
.0:\r
    movq    [edi], mm0\r
    add     edi, 8\r
    loop    .0\r
@ZeroBytes:\r
    and     edx, 7\r
    xor     eax, eax\r
    mov     ecx, edx\r
    rep     stosb\r
    mov     eax, [esp + 8]\r
    pop     edi\r
    ret\r
\r