projects / mirror_edk2.git / blame
| Commit | Line | Data |
|---|---|---|
| 2b53e394 HT |
1 | #------------------------------------------------------------------------------\r |
| 2 | #\r | |
| 3 | # Copyright (c) 2008, Intel Corporation. All rights reserved.<BR>\r | |
| 4 | # This program and the accompanying materials\r | |
| 5 | # are licensed and made available under the terms and conditions of the BSD License\r | |
| 6 | # which accompanies this distribution. The full text of the license may be found at\r | |
| 7 | # http://opensource.org/licenses/bsd-license.php\r | |
| 8 | #\r | |
| 9 | # THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
| 10 | # WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
| 11 | #\r | |
| 12 | # Module Name:\r | |
| 13 | #\r | |
| 14 | # EfiZeroMemRep4.S\r | |
| 15 | #\r | |
| 16 | # Abstract:\r | |
| 17 | #\r | |
| 18 | # ZeroMem function\r | |
| 19 | #\r | |
| 20 | # Notes:\r | |
| 21 | #\r | |
| 22 | #------------------------------------------------------------------------------\r | |
| 23 | #include <EfiBind.h>\r | |
| 24 | \r | |
| 25 | .code: \r | |
| 26 | \r | |
| 27 | .globl ASM_PFX(EfiCommonLibZeroMem)\r | |
| 28 | #------------------------------------------------------------------------------\r | |
| 29 | # VOID\r | |
| 30 | # EfiCommonLibZeroMem (\r | |
| 31 | # IN VOID *Buffer,\r | |
| 32 | # IN UINTN Size\r | |
| 33 | # );\r | |
| 34 | #------------------------------------------------------------------------------\r | |
| 35 | ASM_PFX(EfiCommonLibZeroMem):\r | |
| 36 | push %rdi\r | |
| 37 | xor %rax,%rax\r | |
| 38 | mov %rcx,%rdi\r | |
| 39 | mov %rdx,%rcx\r | |
| 40 | shr $0x2,%rcx\r | |
| 41 | and $0x3,%rdx\r | |
| 42 | rep stos %eax,%es:(%rdi)\r | |
| 43 | mov %rdx,%rcx\r | |
| 44 | rep stos %al,%es:(%rdi)\r | |
| 45 | pop %rdi\r | |
| f1694d27 | 46 | retq |