/*++ Copyright (c) 2007, 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: EfiSetMemRep4.c Abstract: This is the code that uses rep stosd SetMem service --*/ #include "Tiano.h" VOID EfiCommonLibSetMem ( IN VOID *Buffer, IN UINTN Count, IN UINT8 Value ) /*++ Input: VOID *Buffer - Pointer to buffer to write UINTN Count - Number of bytes to write UINT8 Value - Value to write Output: None. Saves: Modifies: Description: This function uses rep stosd to set memory. --*/ { __asm { mov ecx, Count test ecx, ecx je Exit mov al, Value mov ah, al shrd edx, eax, 16 shld eax, edx, 16 mov edx, ecx mov edi, Buffer shr ecx, 2 rep stosd mov ecx, edx and ecx, 3 rep stosb Exit: } }