projects / mirror_edk2.git / blame
| Commit | Line | Data |
|---|---|---|
| 2c7e5c2f HT |
1 | ; Copyright (c) 2004, Intel Corporation. All rights reserved.<BR>\r |
| 2 | ; This program and the accompanying materials \r | |
| 3eb9473e | 3 | ; are licensed and made available under the terms and conditions of the BSD License \r |
| 4 | ; which accompanies this distribution. The full text of the license may be found at \r | |
| 5 | ; http://opensource.org/licenses/bsd-license.php \r | |
| 6 | ; \r | |
| 7 | ; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r | |
| 8 | ; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r | |
| 9 | ;\r | |
| 10 | ; Module Name:\r | |
| 11 | ;\r | |
| 12 | ; CpuIdEx.Asm\r | |
| 13 | ;\r | |
| 14 | ; Abstract:\r | |
| 15 | ;\r | |
| 16 | ; AsmCpuidEx function\r | |
| 17 | ;\r | |
| 18 | ; Notes:\r | |
| 19 | ;\r | |
| 20 | ;------------------------------------------------------------------------------\r | |
| 21 | \r | |
| 22 | .code\r | |
| 23 | \r | |
| 24 | ;------------------------------------------------------------------------------\r | |
| 25 | ; UINT32\r | |
| 26 | ; EFIAPI\r | |
| 27 | ; AsmCpuidEx (\r | |
| 28 | ; IN UINT32 RegisterInEax,\r | |
| 29 | ; IN UINT32 RegisterInEcx,\r | |
| 30 | ; OUT UINT32 *RegisterOutEax OPTIONAL,\r | |
| 31 | ; OUT UINT32 *RegisterOutEbx OPTIONAL,\r | |
| 32 | ; OUT UINT32 *RegisterOutEcx OPTIONAL,\r | |
| 33 | ; OUT UINT32 *RegisterOutEdx OPTIONAL\r | |
| 34 | ; )\r | |
| 35 | ;------------------------------------------------------------------------------\r | |
| 36 | AsmCpuidEx PROC USES rbx\r | |
| 37 | mov eax, ecx\r | |
| 38 | mov ecx, edx\r | |
| 39 | push rax ; save Index on stack\r | |
| 40 | cpuid\r | |
| 41 | mov r10, [rsp + 38h]\r | |
| 42 | test r10, r10\r | |
| 43 | jz @F\r | |
| 44 | mov [r10], ecx\r | |
| 45 | @@:\r | |
| 46 | mov rcx, r8\r | |
| 47 | jrcxz @F\r | |
| 48 | mov [rcx], eax\r | |
| 49 | @@:\r | |
| 50 | mov rcx, r9\r | |
| 51 | jrcxz @F\r | |
| 52 | mov [rcx], ebx\r | |
| 53 | @@:\r | |
| 54 | mov rcx, [rsp + 40h]\r | |
| 55 | jrcxz @F\r | |
| 56 | mov [rcx], edx\r | |
| 57 | @@:\r | |
| 58 | pop rax ; restore Index to rax as return value\r | |
| 59 | ret\r | |
| 60 | AsmCpuidEx ENDP\r | |
| 61 | \r | |
| 62 | END\r |