+++ /dev/null
-;------------------------------------------------------------------------------\r
-;\r
-; Copyright (c) 2007, Intel Corporation. All rights reserved.<BR>\r
-; This program and the accompanying materials\r
-; are licensed and made available under the terms and conditions of the BSD License\r
-; which accompanies this distribution. The full text of the license may be found at\r
-; http://opensource.org/licenses/bsd-license.php\r
-;\r
-; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
-; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
-;\r
-; Module Name:\r
-;\r
-; SetMem.asm\r
-;\r
-; Abstract:\r
-;\r
-; memset function\r
-;\r
-; Notes:\r
-;\r
-;------------------------------------------------------------------------------\r
-\r
- .code\r
-\r
-;------------------------------------------------------------------------------\r
-; VOID *\r
-; memset (\r
-; OUT VOID *Buffer, --> rcx\r
-; IN UINT8 Value, --> rdx\r
-; IN UINTN Length --> r8\r
-; );\r
-;------------------------------------------------------------------------------\r
-memset PROC USES rdi\r
- mov rax, rcx \r
- cmp r8, 0 ; if Size == 0, do nothing\r
- je @SetDone\r
- mov rax, rdx ; rdx <-> r8\r
- mov rdx, r8 ; rdx <- Length\r
- mov r8, rax ; r8 <- Value\r
- mov ah, al\r
- DB 48h, 0fh, 6eh, 0c0h ; movd mm0, rax\r
- mov r8, rcx\r
- mov rdi, r8 ; rdi <- Buffer\r
- mov rcx, rdx\r
- and edx, 7\r
- shr rcx, 3\r
- jz @SetBytes\r
- DB 0fh, 70h, 0C0h, 00h ; pshufw mm0, mm0, 0h\r
-@@:\r
- DB 48h, 0fh, 7eh, 07h ; movd [rdi], mm0\r
- add rdi, 8\r
- loop @B\r
-@SetBytes:\r
- mov ecx, edx\r
- rep stosb\r
- mov rax, r8\r
-@SetDone:\r
- ret\r
-memset ENDP\r
-\r
- END\r