MdePkg/Library/BaseMemoryLibSse2/X64/SetMem32.S

   1 #
   2 # ConvertAsm.py: Automatically generated from SetMem32.asm
   3 #
   4 #------------------------------------------------------------------------------
   5 #
   6 # Copyright (c) 2006 - 2008, Intel Corporation
   7 # All rights reserved. This program and the accompanying materials
   8 # are licensed and made available under the terms and conditions of the BSD License
   9 # which accompanies this distribution.  The full text of the license may be found at
  10 # http://opensource.org/licenses/bsd-license.php
  11 #
  12 # THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  13 # WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  14 #
  15 # Module Name:
  16 #
  17 #   SetMem32.S
  18 #
  19 # Abstract:
  20 #
  21 #   SetMem32 function
  22 #
  23 # Notes:
  24 #
  25 #------------------------------------------------------------------------------
  26
  27
  28 #------------------------------------------------------------------------------
  29 #  VOID *
  30 #  EFIAPI
  31 #  InternalMemSetMem32 (
  32 #    IN VOID   *Buffer,
  33 #    IN UINTN  Count,
  34 #    IN UINT32 Value
  35 #    );
  36 #------------------------------------------------------------------------------
  37 .intel_syntax noprefix
  38 ASM_GLOBAL ASM_PFX(InternalMemSetMem32)
  39 ASM_PFX(InternalMemSetMem32):
  40     push    rdi
  41     mov     rdi, rcx
  42     mov     r9, rdi
  43     xor     rcx, rcx
  44     sub     rcx, rdi
  45     and     rcx, 15
  46     mov     rax, r8
  47     jz      L0
  48     shr     rcx, 2
  49     cmp     rcx, rdx
  50     cmova   rcx, rdx
  51     sub     rdx, rcx
  52     rep     stosd
  53 L0:
  54     mov     rcx, rdx
  55     and     edx, 3
  56     shr     rcx, 2
  57     jz      L_SetDwords
  58     movd    xmm0, eax
  59     pshufd  xmm0, xmm0, 0
  60 L1:
  61     movntdq [rdi], xmm0
  62     add     rdi, 16
  63     loop    L1
  64     mfence
  65 L_SetDwords:
  66     mov     ecx, edx
  67     rep     stosd
  68     mov     rax, r9
  69     pop     rdi
  70     ret