projects / mirror_edk2.git / blame
| Commit | Line | Data |
|---|---|---|
| c5ecf6c1 | 1 | ;------------------------------------------------------------------------------\r |
| 2 | ;\r | |
| 085c3968 HT |
3 | ; Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>\r |
| 4 | ; This program and the accompanying materials\r | |
| c5ecf6c1 | 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 | ; SetMem32.asm\r | |
| 15 | ;\r | |
| 16 | ; Abstract:\r | |
| 17 | ;\r | |
| 18 | ; SetMem32 function\r | |
| 19 | ;\r | |
| 20 | ; Notes:\r | |
| 21 | ;\r | |
| 22 | ;------------------------------------------------------------------------------\r | |
| 23 | \r | |
| 24 | .686\r | |
| 25 | .model flat,C\r | |
| 26 | .mmx\r | |
| 27 | .code\r | |
| 28 | \r | |
| 29 | ;------------------------------------------------------------------------------\r | |
| 30 | ; VOID *\r | |
| 31 | ; EFIAPI\r | |
| 32 | ; InternalMemSetMem32 (\r | |
| 33 | ; IN VOID *Buffer,\r | |
| 34 | ; IN UINTN Count,\r | |
| 35 | ; IN UINT32 Value\r | |
| 36 | ; );\r | |
| 37 | ;------------------------------------------------------------------------------\r | |
| 38 | InternalMemSetMem32 PROC\r | |
| 39 | mov eax, [esp + 4] ; eax <- Buffer as return value\r | |
| 40 | mov ecx, [esp + 8] ; ecx <- Count\r | |
| 15d10a4c | 41 | movd mm0, dword ptr [esp + 12] ; mm0 <- Value\r |
| c5ecf6c1 | 42 | shr ecx, 1 ; ecx <- number of qwords to set\r |
| 43 | mov edx, eax ; edx <- Buffer\r | |
| 44 | jz @SetDwords\r | |
| 45 | movq mm1, mm0\r | |
| 46 | psllq mm1, 32\r | |
| 47 | por mm0, mm1\r | |
| 48 | @@:\r | |
| 15d10a4c | 49 | movq qword ptr [edx], mm0\r |
| c5ecf6c1 | 50 | lea edx, [edx + 8] ; use "lea" to avoid change in flags\r |
| 51 | loop @B\r | |
| 52 | @SetDwords:\r | |
| 53 | jnc @F\r | |
| 15d10a4c | 54 | movd dword ptr [edx], mm0\r |
| c5ecf6c1 | 55 | @@:\r |
| 56 | ret\r | |
| 57 | InternalMemSetMem32 ENDP\r | |
| 58 | \r | |
| 59 | END\r |