Determining Processor Type/Brand at Runtime

#include <iostream>#include <string>using namespace std;bool IsCPUIDSupported(void){	__try	{		__asm		{			mov		eax, 0			CPUID		}	}	__except (1)	{		return false;	}	return true;}string GetCPUName(void){	char proc_name[49] = {0};	    // name can be max 48 chars long	__asm	{        mov     eax,0x080000002     // get first 16 chars        CPUID        mov     DWORD PTR [proc_name + 0],eax        mov     DWORD PTR [proc_name + 4],ebx        mov     DWORD PTR [proc_name + 8],ecx        mov     DWORD PTR [proc_name + 12],edx        mov     eax,0x080000003     // get next 16 chars        CPUID        mov     DWORD PTR [proc_name + 16],eax        mov     DWORD PTR [proc_name + 20],ebx        mov     DWORD PTR [proc_name + 24],ecx        mov     DWORD PTR [proc_name + 28],edx        mov     eax,0x080000004    // get last 16 chars        CPUID        mov     DWORD PTR [proc_name + 32],eax        mov     DWORD PTR [proc_name + 36],ebx        mov     DWORD PTR [proc_name + 40],ecx        mov     DWORD PTR [proc_name + 44],edx	}	return string(proc_name);}string GetCPUVendor(void){	char proc_vendor_id[13] = {0}; // vendor is always 12 chars	__asm	{		mov		eax, 0		CPUID        mov     DWORD PTR [proc_vendor_id + 0],ebx        mov     DWORD PTR [proc_vendor_id + 4],edx        mov     DWORD PTR [proc_vendor_id + 8],ecx	}	return string(proc_vendor_id);}int main(void){	if (IsCPUIDSupported())	{		cout << "CPU Vendor ID: " << GetCPUVendor() << endl;		cout << "CPU Name: " << GetCPUName() << endl;	}	else	{		cout << "CPUID is not supported on your machine!" << endl;	}	getchar();	return 0;}

struct   {    char vendor [13];    char name [64];    char stepping;    char model;    char family;    char type;    char extended_model;    char extended_family;        bool   FPU;    bool   VME;    bool    DE;    bool   PSE;    bool   TSC;    bool   MSR;    bool   PAE;    bool   MCE;    bool   CX8;    bool  APIC;    bool        reserved0;    bool   SEP;    bool  MTRR;    bool   PGE;    bool   MCA;    bool  CMOV;    bool   PAT;    bool PSE36;    bool   PSN;    bool CLFSH;    bool        reserved1;    bool    DS;    bool  ACPI;    bool   MMX;    bool  FXSR;    bool   SSE;    bool  SSE2;    bool    SS;    bool   HTT;    bool    TM;    bool        reserved2;    bool   SBF;   } CPU;     void check_processor_features()   {    struct     {      int  max_eax;      char vendorstring[4*4];      int  signature;      int  feature_flags[3];     } CPUID;    CPUID.vendorstring[0] = 0;         #ifdef _WIN32      int &max_eax = CPUID.max_eax;      __asm       {        pushad            ; save all general purpose registers into the stack        pushfd            ; save processor state flags into the stack                mov esi, max_eax  ; copy &max_eax to %esi          xor eax, eax      ; reset %eax        cpuid             ; call cpuid        mov [esi   ], eax ; max_eax = %eax        mov [esi+ 4], ebx ; vendorstring[0-3] = %ebx = 0x47656e75 ("Genu")        mov [esi+ 8], edx ; vendorstring[4-7] = %edx = 0x696e654e ("ineI")        mov [esi+12], ecx ; vendorstring[8-b] = %ecx = 0x6e74656c ("ntel")        xor eax, eax      ; reset %eax        mov [esi+16], eax ; vendorstring[c-f] = 0x00000000 ("")        inc eax           ; ++%eax        cpuid             ; call cpuid        mov [esi+20], eax ; signature = %eax        mov [esi+24], ebx ; feature_flags[0] = %ebx        mov [esi+28], ecx ; feature_flags[1] = %ecx        mov [esi+32], edx ; feature_flags[2] = %edx          popfd             ; restore processor state flags form the stack        popad             ; restore original register values from the stack       }    #else      asm volatile       (        "pusha                 /* save all general purpose registers into the stack  */\n\t"        "pushf                 /* save processor state flags into the stack          */\n\t"        "\n\t"        "lea %0, %%esi         /* copy &max_eax to %%esi                             */\n\t"        "\n\t"        "xor %%eax, %%eax      /* reset %%eax                                        */\n\t"        "cpuid                 /* call cpuid                                         */\n\t"        "mov %%eax,   (%%esi)  /* max_eax = %%eax                                    */\n\t"        "mov %%ebx,  4(%%esi)  /* vendorstring[0-3] = %%ebx = 0x41757468 (\"Auth\")  */\n\t"        "mov %%edx,  8(%%esi)  /* vendorstring[4-7] = %%edx = 0x656e7469 (\"enti\")  */\n\t"        "mov %%ecx, 12(%%esi)  /* vendorstring[8-b] = %%ecx = 0x63414d44 (\"cAMD\")  */\n\t"        "xor %%eax, %%eax      /* reset %%eax                                        */\n\t"        "mov %%eax, 16(%%esi)  /* vendorstring[c-f] = 0x00000000 (\"\")              */\n\t"        "inc %%eax             /* ++%%eax                                            */\n\t"        "cpuid                 /* call cpuid                                         */\n\t"        "mov %%eax, 20(%%esi)  /* signature = %%eax                                  */\n\t"        "mov %%ebx, 24(%%esi)  /* feature_flags[0] = %%ebx                           */\n\t"        "mov %%ecx, 28(%%esi)  /* feature_flags[1] = %%ecx                           */\n\t"        "mov %%edx, 32(%%esi)  /* feature_flags[2] = %%edx                           */\n\t"        "\n\t"        "popf                  /* restore processor state flags form the stack       */\n\t"        "popa                  /* restore original register values from the stack    */\n\t"        :        : "m"(CPUID.max_eax)       );    #endif        strcpy(CPU.vendor, CPUID.vendorstring);    CPU.extended_family = (CPUID.signature>>20) & 0xff;    CPU.extended_model  = (CPUID.signature>>16) & 0x0f;    CPU.type            = (CPUID.signature>>12) & 0x03;    CPU.family          = (CPUID.signature>> 8) & 0x0f;    CPU.model           = (CPUID.signature>> 4) & 0x0f;    CPU.stepping        = (CPUID.signature>> 0) & 0x0f;       ...