MdePkg/Library/BaseMemoryLibSse2/X64/SetMem32.S

   1 #
   2 # ConvertAsm.py: Automatically generated from SetMem32.asm
   3 #
   4 #------------------------------------------------------------------------------
   5 #
   6 # Copyright (c) 2006 - 2009, 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 ASM_GLOBAL ASM_PFX(InternalMemSetMem32)
  38 ASM_PFX(InternalMemSetMem32):
  39     pushq   %rdi
  40     movq    %rcx, %rdi
  41     movq    %rdi, %r9
  42     xorq    %rcx, %rcx
  43     subq    %rdi, %rcx
  44     andq    $15, %rcx
  45     movq    %r8, %rax
  46     jz      L0
  47     shrq    $2, %rcx
  48     cmpq    %rdx, %rcx
  49     cmova   %rdx, %rcx
  50     subq    %rcx, %rdx
  51     rep     stosl
  52 L0:
  53     movq    %rdx, %rcx
  54     andl    $3, %edx
  55     shrq    $2, %rcx
  56     jz      L_SetDwords
  57     movd    %eax, %xmm0
  58     pshufd  $0, %xmm0, %xmm0
  59 L1:
  60     movntdq %xmm0, (%rdi)
  61     addq    $16, %rdi
  62     loop    L1
  63     mfence
  64 L_SetDwords:
  65     movl    %edx, %ecx
  66     rep     stosl
  67     movq    %r9, %rax
  68     popq    %rdi
  69     ret