internal unsafe static void GetProcessorInfo(out UInt32 stepping, out UInt32 family, out UInt32 model, out ProcessorFeatureFlags flags)
{
UInt32 eax = 0, ebx = 0, ecx = 0, edx = 0;
// Processor Info & Feature Bits
Asm.XOR (R32.EAX, R32.EAX);
Asm.INC (R32.EAX);
Asm.CPUID ();
Asm.MOV (&eax, R32.EAX);
Asm.MOV (&ebx, R32.EBX);
Asm.MOV (&edx, R32.EDX);
Asm.MOV (&ecx, R32.ECX);
// Signature
// 3:0 - Stepping
// 7:4 - Base Model
// 11:8 - Base Family
// 13:12 - Reserved / Processor Type
// 19:16 - Extended Model
// 27:20 - Extended Family
//
// Family = Base Family + Extended Family
// Model = Base Model + (Extended Model << 4)
stepping = (eax & 0x0F);
model = ((eax >> 4) & 0x0F) | ((eax >> 12) & 0x0F);
family = ((eax >> 8) & 0x0F) + ((eax >> 20) & 0x0F);
// Miscellaneous Information
// 7:0 - brand ID
// 15:8 - CLFLUSH size
// 23:16 - LogicalProcessorCount is the number of threads per
// CPU core times the number of CPU cores per processor
// 31:24 - Initial local APIC physical ID.
UInt32 miscellaneousInformation = ebx; // not sure what to do with this...
// Feature flags
UInt64 flags64 = 0;
UInt32* flags32 = (UInt32*)&flags64;
*flags32 = edx;
flags32 += sizeof(UInt32);
*flags32 = ecx;
flags = (ProcessorFeatureFlags)flags64;
}
internal unsafe static void GetProcessorInfo(out UInt32 stepping, out UInt32 family, out UInt32 model, out ProcessorFeatureFlags flags)
{
UInt32 eax = 0, ebx = 0, ecx = 0, edx = 0;
// Processor Info & Feature Bits
Asm.XOR(R32.EAX, R32.EAX);
Asm.INC(R32.EAX);
Asm.CPUID();
Asm.MOV(&eax, R32.EAX);
Asm.MOV(&ebx, R32.EBX);
Asm.MOV(&edx, R32.EDX);
Asm.MOV(&ecx, R32.ECX);
// Signature
// 3:0 - Stepping
// 7:4 - Base Model
// 11:8 - Base Family
// 13:12 - Reserved / Processor Type
// 19:16 - Extended Model
// 27:20 - Extended Family
//
// Family = Base Family + Extended Family
// Model = Base Model + (Extended Model << 4)
stepping = (eax & 0x0F);
model = ((eax >> 4) & 0x0F) | ((eax >> 12) & 0x0F);
family = ((eax >> 8) & 0x0F) + ((eax >> 20) & 0x0F);
// Miscellaneous Information
// 7:0 - brand ID
// 15:8 - CLFLUSH size
// 23:16 - LogicalProcessorCount is the number of threads per
// CPU core times the number of CPU cores per processor
// 31:24 - Initial local APIC physical ID.
UInt32 miscellaneousInformation = ebx; // not sure what to do with this...
// Feature flags
UInt64 flags64 = 0;
UInt32 *flags32 = (UInt32 *)&flags64;
*flags32 = edx;
flags32 += sizeof(UInt32);
*flags32 = ecx;
flags = (ProcessorFeatureFlags)flags64;
}
