cpufeatures.h

一个用vc获取系统硬件信息的例子

//------------------------------------------------------------------------------
// CpuFeatures.h
//    
//   This file just has a bunch of #define's for processor features. 
//   It's mostly taken directly from both Intel and AMD. 
// 
//   Copyright (c) 2001 Paul Wendt [[e-mail]]
// 
#ifndef CPUFEATURES_H_
#define CPUFEATURES_H_

// feature #define's
#define FPU_FLAG              0x00000001     // [Bit 00] FPU onboard?                                
#define VME_FLAG              0x00000002     // [Bit 01] Virtual Mode Extension                      
#define DE_FLAG               0x00000004     // [Bit 02] Debugging Extension                         
#define PSE_FLAG              0x00000008     // [Bit 03] Page Size Extension                         
#define TSC_FLAG              0x00000010     // [Bit 04] Time Stamp Counter                          
#define MSR_FLAG              0x00000020     // [Bit 05] Model Specific Registers                    
#define PAE_FLAG              0x00000040     // [Bit 06] Physical Address Extension                  
#define MCE_FLAG              0x00000080     // [Bit 07] Machine Check Exception                     
#define CX8_FLAG              0x00000100     // [Bit 08] CMPXCHG8 instruction supported              
#define APIC_FLAG             0x00000200     // [Bit 09] On-chip APIC hardware supported             
#define RESERVED_10           0x00000400     // [Bit 10] reserved                             
#define SEP_FLAG              0x00000800     // [Bit 11] Fast System Call                            
#define MTRR_FLAG             0x00001000     // [Bit 12] Memory Type Range Registers                 
#define PGE_FLAG              0x00002000     // [Bit 13] Page Global Enable                          
#define MCA_FLAG              0x00004000     // [Bit 14] Machine Check Architecture                  
#define CMOV_FLAG             0x00008000     // [Bit 15] Conditional Move Instruction Supported      
#define PAT_FLAG              0x00010000     // [Bit 16] Page Attribute Table                        
#define PSE36_FLAG            0x00020000     // [Bit 17] 36-bit Page Size Extension                  
#define PSNUM_FLAG            0x00040000     // [Bit 18] Processor Serial Number Present and Enabled 
#define CLFLUSH_FLAG          0x00080000     // [Bit 19] CLFLUSH instruction supported               
#define RESERVED_20           0x00100000     // [Bit 20] reserved                             
#define DTS_FLAG              0x00200000     // [Bit 21] Debug Store                                 
#define ACPI_FLAG             0x00400000     // [Bit 22] Thermal Monitor and Software Clock          
#define MMX_FLAG              0x00800000     // [Bit 23] MMX supported                               
#define FXSR_FLAG             0x01000000     // [Bit 24] Fast Floating Point Save and Restore        
#define SSE_FLAG              0x02000000     // [Bit 25] Streaming SIMD Extensions Supported          
#define SSE2_FLAG             0x04000000     // [Bit 26] Streaming SIMD Extensions 2                 
#define SS_FLAG               0x08000000     // [Bit 27] Self-Snoop                                  
#define RESERVED_28           0x10000000     // [Bit 28] reserved                             
#define TM_FLAG               0x20000000     // [Bit 29] Thermal Monitor Supported                   
#define RESERVED_30           0x40000000     // [Bit 30] reserved                             
#define RESERVED_31           0x80000000     // [Bit 31] reserved                             

// extended feature #define's
#define SSEMMX_FLAG           0x00400000     // [Bit 22] SSE MMX Extensions
#define HAS3DNOW_FLAG         0x40000000     // [Bit 30] 3dNow!
#define EXT3DNOW_FLAG         0x80000000     // [Bit 31] 3dNow! Extensions

// largest extended feature #define's
#define AMD_EXTENDED_FEATURE  0x80000001     // this gets extended processor features for AMD CPUs
#define NAMESTRING_FEATURE    0x80000004     // this is the namestring feature; goes from 0x80000002 to 0x80000004
#define AMD_L1CACHE_FEATURE   0x80000005     // this gets L1 cache info for AMD CPUs
#define AMD_L2CACHE_FEATURE   0x80000006     // this gets L2 cache info for AMD CPUs

#endif