| #------------------------------------------------------------------------------ |
| # |
| # 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: |
| # |
| #------------------------------------------------------------------------------ |
| |
| .globl _InternalMemZeroMem |
| |
| #------------------------------------------------------------------------------ |
| # VOID * |
| # EFIAPI |
| # InternalMemZeroMem ( |
| # IN VOID *Buffer, |
| # IN UINTN Count |
| # ); |
| #------------------------------------------------------------------------------ |
| _InternalMemZeroMem: |
| push %edi |
| movl 8(%esp), %edi |
| movl 12(%esp), %ecx |
| movl %ecx, %edx |
| shrl $3, %ecx |
| jz L_ZeroBytes |
| pxor %mm0, %mm0 |
| L0: |
| movq %mm0, (%edi) |
| addl $8, %edi |
| loop L0 |
| L_ZeroBytes: |
| andl $7, %edx |
| xorl %eax, %eax |
| movl %edx, %ecx |
| rep |
| stosb |
| movl 8(%esp), %eax |
| pop %edi |
| ret |
