diff options
| author | bbahnsen <bbahnsen@6f19259b-4bc3-4df7-8a09-765794883524> | 2006-06-20 21:50:44 +0000 |
|---|---|---|
| committer | bbahnsen <bbahnsen@6f19259b-4bc3-4df7-8a09-765794883524> | 2006-06-20 21:50:44 +0000 |
| commit | 975201130c7223ef29be7a28500ed107623fc4be (patch) | |
| tree | 1ee2dacc73b6285d5371cf34e8100e831d971695 /MdePkg/Library/BaseMemoryLibSse2/Ia32/ZeroMem.S | |
| parent | 11e7b0f6dd28d03942494d3e18842d31421a9842 (diff) | |
| download | edk2-platforms-975201130c7223ef29be7a28500ed107623fc4be.tar.xz | |
Use capital S for GCC assembly. This enables pre-processing for PCD support.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@576 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'MdePkg/Library/BaseMemoryLibSse2/Ia32/ZeroMem.S')
| -rw-r--r-- | MdePkg/Library/BaseMemoryLibSse2/Ia32/ZeroMem.S | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/MdePkg/Library/BaseMemoryLibSse2/Ia32/ZeroMem.S b/MdePkg/Library/BaseMemoryLibSse2/Ia32/ZeroMem.S new file mode 100644 index 0000000000..f927f9128f --- /dev/null +++ b/MdePkg/Library/BaseMemoryLibSse2/Ia32/ZeroMem.S @@ -0,0 +1,68 @@ +#------------------------------------------------------------------------------ +# +# Copyright (c) 2006, Intel Corporation +# All rights reserved. This program and the accompanying materials +# are licensed and made available under the terms and conditions of the BSD License +# which accompanies this distribution. The full text of the license may be found at +# http://opensource.org/licenses/bsd-license.php +# +# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, +# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. +# +# Module Name: +# +# ZeroMem.asm +# +# Abstract: +# +# ZeroMem function +# +# Notes: +# +#------------------------------------------------------------------------------ + + .686: + #.MODEL flat,C + .xmm: + .code: + +#------------------------------------------------------------------------------ +# VOID * +# _mem_ZeroMem ( +# IN VOID *Buffer, +# IN UINTN Count +# ) +#------------------------------------------------------------------------------ +.global _InternalMemZeroMem +_InternalMemZeroMem: + push %edi + movl 8(%esp), %edi + movl 12(%esp), %edx + xorl %ecx, %ecx + subl %edi, %ecx + xorl %eax, %eax + andl $15, %ecx + jz L0 + cmpl %edx, %ecx + cmova %edx, %ecx + subl %ecx, %edx + rep + stosb +L0: + movl %edx, %ecx + andl $15, %edx + shrl $4, %ecx + jz @ZeroBytes + pxor %xmm0, %xmm0 +L1: + movntdq %xmm0, (%edi) + addl $16, %edi + loop L1 + mfence +@ZeroBytes: + movl %edx, %ecx + rep + stosb + movl 8(%esp), %eax + pop %edi + ret |