1;------------------------------------------------------------------------------ 2; 3; Copyright (c) 2006, Intel Corporation. All rights reserved.<BR> 4; This program and the accompanying materials 5; are licensed and made available under the terms and conditions of the BSD License 6; which accompanies this distribution. The full text of the license may be found at 7; http://opensource.org/licenses/bsd-license.php. 8; 9; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 10; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 11; 12; Module Name: 13; 14; CpuId.Asm 15; 16; Abstract: 17; 18; AsmCpuid function 19; 20; Notes: 21; 22;------------------------------------------------------------------------------ 23 24 .586P 25 .model flat,C 26 .code 27 28;------------------------------------------------------------------------------ 29; VOID 30; EFIAPI 31; AsmCpuid ( 32; IN UINT32 RegisterInEax, 33; OUT UINT32 *RegisterOutEax OPTIONAL, 34; OUT UINT32 *RegisterOutEbx OPTIONAL, 35; OUT UINT32 *RegisterOutEcx OPTIONAL, 36; OUT UINT32 *RegisterOutEdx OPTIONAL 37; ); 38;------------------------------------------------------------------------------ 39AsmCpuid PROC USES ebx 40 push ebp 41 mov ebp, esp 42 mov eax, [ebp + 12] 43 cpuid 44 push ecx 45 mov ecx, [ebp + 16] 46 jecxz @F 47 mov [ecx], eax 48@@: 49 mov ecx, [ebp + 20] 50 jecxz @F 51 mov [ecx], ebx 52@@: 53 mov ecx, [ebp + 24] 54 jecxz @F 55 pop DWORD [ecx] 56@@: 57 mov ecx, [ebp + 28] 58 jecxz @F 59 mov [ecx], edx 60@@: 61 mov eax, [ebp + 12] 62 leave 63 ret 64AsmCpuid ENDP 65 66 END 67