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 SECTION .text 25 26;------------------------------------------------------------------------------ 27; VOID 28; EFIAPI 29; AsmCpuid ( 30; IN UINT32 RegisterInEax, 31; OUT UINT32 *RegisterOutEax OPTIONAL, 32; OUT UINT32 *RegisterOutEbx OPTIONAL, 33; OUT UINT32 *RegisterOutEcx OPTIONAL, 34; OUT UINT32 *RegisterOutEdx OPTIONAL 35; ); 36;------------------------------------------------------------------------------ 37global ASM_PFX(AsmCpuid) 38ASM_PFX(AsmCpuid): 39 push 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 .0 47 mov [ecx], eax 48.0: 49 mov ecx, [ebp + 20] 50 jecxz .1 51 mov [ecx], ebx 52.1: 53 mov ecx, [ebp + 24] 54 jecxz .2 55 pop DWORD [ecx] 56.2: 57 mov ecx, [ebp + 28] 58 jecxz .3 59 mov [ecx], edx 60.3: 61 mov eax, [ebp + 12] 62 leave 63 pop ebx 64 ret 65 66