diff options
Diffstat (limited to 'EDK/Foundation/Library/EdkIIGlueLib/Library/BaseMemoryLib/X64/ZeroMem.asm')
-rw-r--r-- | EDK/Foundation/Library/EdkIIGlueLib/Library/BaseMemoryLib/X64/ZeroMem.asm | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/EDK/Foundation/Library/EdkIIGlueLib/Library/BaseMemoryLib/X64/ZeroMem.asm b/EDK/Foundation/Library/EdkIIGlueLib/Library/BaseMemoryLib/X64/ZeroMem.asm new file mode 100644 index 0000000..1b1b809 --- /dev/null +++ b/EDK/Foundation/Library/EdkIIGlueLib/Library/BaseMemoryLib/X64/ZeroMem.asm @@ -0,0 +1,47 @@ +;------------------------------------------------------------------------------ +; +; 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: +; +;------------------------------------------------------------------------------ + + .code + +;------------------------------------------------------------------------------ +; VOID * +; InternalMemZeroMem ( +; IN VOID *Buffer, +; IN UINTN Count +; ); +;------------------------------------------------------------------------------ +InternalMemZeroMem PROC USES rdi + push rcx + xor rax, rax + mov rdi, rcx + mov rcx, rdx + shr rcx, 3 + and rdx, 7 + rep stosq + mov ecx, edx + rep stosb + pop rax + ret +InternalMemZeroMem ENDP + + END |