| e1f414b6 |
1 | //\r |
| 2 | // Include common header file for this module.\r |
| 3 | //\r |
| 4 | #include "CommonHeader.h"\r |
| 5 | \r |
| 6 | ;------------------------------------------------------------------------------\r |
| 7 | ;\r |
| 8 | ; Copyright (c) 2006, Intel Corporation\r |
| 9 | ; All rights reserved. This program and the accompanying materials\r |
| 10 | ; are licensed and made available under the terms and conditions of the BSD License\r |
| 11 | ; which accompanies this distribution. The full text of the license may be found at\r |
| 12 | ; http://opensource.org/licenses/bsd-license.php\r |
| 13 | ;\r |
| 14 | ; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r |
| 15 | ; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r |
| 16 | ;\r |
| 17 | ; Module Name:\r |
| 18 | ;\r |
| 19 | ; SetMem16.asm\r |
| 20 | ;\r |
| 21 | ; Abstract:\r |
| 22 | ;\r |
| 23 | ; SetMem16 function\r |
| 24 | ;\r |
| 25 | ; Notes:\r |
| 26 | ;\r |
| 27 | ;------------------------------------------------------------------------------\r |
| 28 | \r |
| 29 | .686\r |
| 30 | .model flat,C\r |
| 31 | .xmm\r |
| 32 | .code\r |
| 33 | \r |
| 34 | ;------------------------------------------------------------------------------\r |
| 35 | ; VOID *\r |
| 36 | ; EFIAPI\r |
| 37 | ; InternalMemSetMem16 (\r |
| 38 | ; IN VOID *Buffer,\r |
| 39 | ; IN UINTN Count,\r |
| 40 | ; IN UINT16 Value\r |
| 41 | ; );\r |
| 42 | ;------------------------------------------------------------------------------\r |
| 43 | InternalMemSetMem16 PROC USES edi\r |
| 44 | mov edx, [esp + 12]\r |
| 45 | mov edi, [esp + 8]\r |
| 46 | xor ecx, ecx\r |
| 47 | sub ecx, edi\r |
| 48 | and ecx, 15 ; ecx + edi aligns on 16-byte boundary\r |
| 49 | mov eax, [esp + 16]\r |
| 50 | jz @F\r |
| 51 | shr ecx, 1\r |
| 52 | cmp ecx, edx\r |
| 53 | cmova ecx, edx\r |
| 54 | sub edx, ecx\r |
| 55 | rep stosw\r |
| 56 | @@:\r |
| 57 | mov ecx, edx\r |
| 58 | and edx, 7\r |
| 59 | shr ecx, 3\r |
| 60 | jz @SetWords\r |
| 61 | movd xmm0, eax\r |
| 62 | pshuflw xmm0, xmm0, 0\r |
| 63 | movlhps xmm0, xmm0\r |
| 64 | @@:\r |
| 65 | movntdq [edi], xmm0 ; edi should be 16-byte aligned\r |
| 66 | add edi, 16\r |
| 67 | loop @B\r |
| 68 | mfence\r |
| 69 | @SetWords:\r |
| 70 | mov ecx, edx\r |
| 71 | rep stosw\r |
| 72 | mov eax, [esp + 8]\r |
| 73 | ret\r |
| 74 | InternalMemSetMem16 ENDP\r |
| 75 | \r |
| 76 | END\r |
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