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1 | ;------------------------------------------------------------------------------\r |
2 | ;\r |
3 | ; Copyright (c) 2006, Intel Corporation\r |
4 | ; All rights reserved. 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 | ; ReadPmc.Asm\r |
15 | ;\r |
16 | ; Abstract:\r |
17 | ;\r |
18 | ; AsmReadPmc function\r |
19 | ;\r |
20 | ; Notes:\r |
21 | ;\r |
22 | ;------------------------------------------------------------------------------\r |
23 | \r |
24 | .code\r |
25 | \r |
26 | ;------------------------------------------------------------------------------\r |
27 | ; UINT64\r |
28 | ; EFIAPI\r |
29 | ; AsmReadPmc (\r |
30 | ; IN UINT32 PmcIndex\r |
31 | ; );\r |
32 | ;------------------------------------------------------------------------------\r |
33 | AsmReadPmc PROC\r |
34 | rdpmc\r |
35 | shl ecx, 1\r |
36 | jnc @F\r |
37 | shl rax, 20h\r |
38 | shrd rax, rdx, 20h\r |
39 | @@:\r |
40 | ret\r |
41 | AsmReadPmc ENDP\r |
42 | \r |
43 | END\r |