Name 

Description 

Functions 

The following table lists functions in this documentation. 

Structs, Records, Enums 

The following table lists structs, records, enums in this documentation. 

Variables 

The following table lists variables in this documentation. 

Macros 

The following table lists macros in this documentation. 

 

Name 

Description 

 

CPUCount 

 

 

CpuIDSupported 

CpuIDSupported will return 0 if CPUID instruction is unavailable. Otherwise, it will return the maximum supported standard function. 

 

find_maskwidth 

This is function CPUInfo::find_maskwidth. 

 

GetAPIC_ID 

This is function CPUInfo::GetAPIC_ID. 

 

GetNzbSubID 

Extract the subset of bit field from the 8-bit value FullID. It returns the 8-bit sub ID value 

 

HWD_MTSupported 

The function returns 0 when the hardware multi-threaded bit is not set. 

 

MaxCorePerPhysicalProc 

Function returns the maximum cores per physical package. Note that the number of AVAILABLE cores per physical to be used by an application might be less than this maximum value. 

 

MaxLogicalProcPerPhysicalProc 

Function returns the maximum logical processors per physical package. Note that the number of AVAILABLE logical processors per physical to be used by an application might be less than this maximum value. 

Name 

Description 

HWD_MT_BIT 

EDX[28] Bit 28 is set if HT or multi-core is supported 

INITIAL_APIC_ID_BITS 

EBX[31:24] Bits 24-31 (8 bits) return the 8-bit unique initial APIC ID for the processor this code is running on. 

NUM_CORE_BITS 

EAX[31:26] Bit 26-31 in eax contains the number of cores minus one per physical processor when execute cpuid with eax set to 4. 

NUM_LOGICAL_BITS 

EBX[23:16] Bit 16-23 in ebx contains the number of logical processors per physical processor when execute cpuid with eax set to 1 

 

Name 

Description 

 

EConfig 

This is record CPUInfo::EConfig. 

Name 

Description 

g_s3Levels 

This is variable CPUInfo::g_s3Levels.