IntelInfoImpl (Javadocs [I2P+ 2.13.0+]

java.lang.Object
- freenet.support.CPUInformation.CPUIDCPUInfo
- - freenet.support.CPUInformation.IntelInfoImpl

All Implemented Interfaces:: CPUInfo, IntelCPUInfo

class IntelInfoImpl
extends CPUIDCPUInfo
implements IntelCPUInfo

Identifies Intel CPUs via CPUID and exposes instruction set support flags.

Identification Strategy

Two identification paths are used, in order of priority:

Brand string (CPUID leaf 0x80000002–0x80000004): Returns the exact marketing name (e.g. "Intel(R) Core(TM) i9-14900K") and is always accurate when the CPU supports extended CPUID leaves.
Model number fallback: For very old CPUs without brand string support, the processor identifier is computed from CPUID family/model/extended-model/extended-family values and matched against a table of known Intel microarchitectures.

Instruction Set Flags

Regardless of the identification path, the switch(family) block always runs to set the instruction set compatibility flags (isSandyCompatible, isHaswellCompatible, etc.), which are queried by callers to determine feature availability (AVX, AVX2, AVX-512, BMI, FMA, etc.).

Intel Family 6 Model Numbers

Intel uses family 6 for all modern Core processors. The model number (base model + extended model) distinguishes microarchitectures:

   0x0e-0x0f  Core (Merom/Conroe)       0x1a-0x1f  Nehalem
   0x25-0x2f  Westmere                  0x25-0x2f  Sandy Bridge
   0x3a-0x3f  Ivy Bridge                0x3c-0x3f  Haswell
   0x45-0x47  Haswell (ULT)             0x3d-0x4f  Broadwell
   0x4e-0x5e  Skylake                   0x55        Skylake-X / Cascade Lake / Cooper Lake
   0x5c-0x5f  Goldmont (Atom)           0x66-0x67  Cannon Lake
   0x7a        Gemini Lake               0x7c        Lakefield
   0x7d-0x7e  Ice Lake client           0x6a-0x6c  Ice Lake server
   0x82-0x9e  Kaby Lake / Coffee Lake   0xa5-0xa6  Comet Lake
   0x8c-0x8d  Tiger Lake                0xa7        Rocket Lake
   0x97-0x9a  Alder Lake                0xb7-0xbf  Raptor Lake
   0xaa-0xac  Meteor Lake               0xb5-0xc6  Arrow Lake
   0xbd        Lunar Lake                0xcc        Panther Lake
   0xd5        Wildcat Lake              0x8f        Sapphire Rapids
   0xcf        Emerald Rapids            0xad-0xae  Granite Rapids
   0xaf        Sierra Forest             0xdd        Clearwater Forest
   0xb6        Grand Ridge               0xbe        Gracemont (E-core only)

See Also:: CPUID, IntelCPUInfo

Constructor Summary
Constructors
Constructor and Description
IntelInfoImpl()

Constructors
Constructor and Description
`IntelInfoImpl()`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`String`	`getCPUModelString()` Returns the identified processor name, or throws if unrecognized.
`boolean`	`IsAtomCompatible()` `true` if the CPU is an Intel Atom (Silvermont/Goldmont/etc.).
`boolean`	`IsBroadwellCompatible()` `true` if the CPU supports Broadwell (ADX, AVX-512PF/ER) instructions.
`boolean`	`IsCore2Compatible()` `true` if the CPU supports Core 2 (SSSE3) instructions.
`boolean`	`IsCoreiCompatible()` `true` if the CPU supports Core i-series (SSE4.2) instructions.
`boolean`	`IsHaswellCompatible()` `true` if the CPU supports Haswell (AVX2, BMI1/2, FMA) instructions.
`boolean`	`IsIvyCompatible()` `true` if the CPU supports Ivy Bridge (AVX, PCMPGTQ) instructions.
`boolean`	`IsPentium2Compatible()` `true` if the CPU supports Pentium II (P6) instructions.
`boolean`	`IsPentium3Compatible()` `true` if the CPU supports Pentium III instructions (SSE).
`boolean`	`IsPentium4Compatible()` `true` if the CPU supports Pentium 4 instructions (SSE2).
`boolean`	`IsPentiumCompatible()` `true` if the CPU supports Pentium (P5) instructions.
`boolean`	`IsPentiumMCompatible()` `true` if the CPU supports Pentium M (Dothan/Core) instructions.
`boolean`	`IsPentiumMMXCompatible()` `true` if the CPU supports Pentium MMX instructions.
`boolean`	`IsSandyCompatible()` `true` if the CPU supports Sandy Bridge (AVX) instructions.
`boolean`	`IsSkylakeCompatible()` `true` if the CPU supports Skylake (AVX-512F/DQ/BW/VL) instructions.

Methods inherited from class freenet.support.CPUInformation.CPUIDCPUInfo
getVendor, hasABM, hasADX, hasAES, hasAVX, hasAVX2, hasAVX512, hasBMI1, hasBMI2, hasFMA3, hasMMX, hasMOVBE, hasSSE, hasSSE2, hasSSE3, hasSSE41, hasSSE42, hasSSE4A, hasTBM, hasX64

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface freenet.support.CPUInformation.CPUInfo
getVendor, hasABM, hasADX, hasAES, hasAVX, hasAVX2, hasAVX512, hasBMI1, hasBMI2, hasFMA3, hasMMX, hasMOVBE, hasSSE, hasSSE2, hasSSE3, hasSSE41, hasSSE42, hasSSE4A, hasTBM, hasX64

- Constructor Detail
  - IntelInfoImpl
```
IntelInfoImpl()
```
- Method Detail
  - getCPUModelString
```
public String getCPUModelString()
                         throws UnknownCPUException
```
    Returns the identified processor name, or throws if unrecognized.
    Specified by:
    getCPUModelString in interface CPUInfo
    Overrides:
    getCPUModelString in class CPUIDCPUInfo
    Returns:
    the CPU model string (e.g. "Intel(R) Core(TM) i9-14900K" or "Skylake Core i3/i5/i7")
    Throws:
    UnknownCPUException - if the CPU could not be identified
  - IsAtomCompatible
```
public boolean IsAtomCompatible()
```
    true if the CPU is an Intel Atom (Silvermont/Goldmont/etc.).
    Specified by:
    IsAtomCompatible in interface IntelCPUInfo
    Returns:
    true if the CPU implements at least an Atom level instruction/feature set
  - IsBroadwellCompatible
```
public boolean IsBroadwellCompatible()
```
    true if the CPU supports Broadwell (ADX, AVX-512PF/ER) instructions.
    Specified by:
    IsBroadwellCompatible in interface IntelCPUInfo
    Returns:
    true if the CPU implements at least a Broadwell level instruction/feature set
  - IsCore2Compatible
```
public boolean IsCore2Compatible()
```
    true if the CPU supports Core 2 (SSSE3) instructions.
    Specified by:
    IsCore2Compatible in interface IntelCPUInfo
    Returns:
    true if the CPU implements at least a Core2 level instruction/feature set
  - IsCoreiCompatible
```
public boolean IsCoreiCompatible()
```
    true if the CPU supports Core i-series (SSE4.2) instructions.
    Specified by:
    IsCoreiCompatible in interface IntelCPUInfo
    Returns:
    true if the CPU implements at least a Corei level instruction/feature set
  - IsHaswellCompatible
```
public boolean IsHaswellCompatible()
```
    true if the CPU supports Haswell (AVX2, BMI1/2, FMA) instructions.
    Specified by:
    IsHaswellCompatible in interface IntelCPUInfo
    Returns:
    true if the CPU implements at least a Haswell level instruction/feature set
  - IsIvyCompatible
```
public boolean IsIvyCompatible()
```
    true if the CPU supports Ivy Bridge (AVX, PCMPGTQ) instructions.
    Specified by:
    IsIvyCompatible in interface IntelCPUInfo
    Returns:
    true if the CPU implements at least an IvyBridge level instruction/feature set
  - IsPentium2Compatible
```
public boolean IsPentium2Compatible()
```
    true if the CPU supports Pentium II (P6) instructions.
    Specified by:
    IsPentium2Compatible in interface IntelCPUInfo
    Returns:
    true if the CPU implements at least the p6 instruction set
  - IsPentium3Compatible
```
public boolean IsPentium3Compatible()
```
    true if the CPU supports Pentium III instructions (SSE).
    Specified by:
    IsPentium3Compatible in interface IntelCPUInfo
    Returns:
    true if the CPU implements at least a Pentium III level
  - IsPentium4Compatible
```
public boolean IsPentium4Compatible()
```
    true if the CPU supports Pentium 4 instructions (SSE2).
    Specified by:
    IsPentium4Compatible in interface IntelCPUInfo
    Returns:
    true if the CPU implements at least a Pentium IV level
  - IsPentiumCompatible
```
public boolean IsPentiumCompatible()
```
    true if the CPU supports Pentium (P5) instructions.
    Specified by:
    IsPentiumCompatible in interface IntelCPUInfo
    Returns:
    true if the CPU is at least a Pentium CPU
  - IsPentiumMCompatible
```
public boolean IsPentiumMCompatible()
```
    true if the CPU supports Pentium M (Dothan/Core) instructions.
    Specified by:
    IsPentiumMCompatible in interface IntelCPUInfo
    Returns:
    true if the CPU implements at least a Pentium M level
  - IsPentiumMMXCompatible
```
public boolean IsPentiumMMXCompatible()
```
    true if the CPU supports Pentium MMX instructions.
    Specified by:
    IsPentiumMMXCompatible in interface IntelCPUInfo
    Returns:
    true if the CPU is at least a Pentium MMX compatible CPU
  - IsSandyCompatible
```
public boolean IsSandyCompatible()
```
    true if the CPU supports Sandy Bridge (AVX) instructions.
    Specified by:
    IsSandyCompatible in interface IntelCPUInfo
    Returns:
    true if the CPU implements at least a SandyBridge level instruction/feature set
  - IsSkylakeCompatible
```
public boolean IsSkylakeCompatible()
```
    true if the CPU supports Skylake (AVX-512F/DQ/BW/VL) instructions.
    Specified by:
    IsSkylakeCompatible in interface IntelCPUInfo
    Returns:
    true if the CPU implements at least a Skylake level instruction/feature set

Class IntelInfoImpl

Identification Strategy

Instruction Set Flags

Intel Family 6 Model Numbers

Constructor Summary

Method Summary

Methods inherited from class freenet.support.CPUInformation.CPUIDCPUInfo

Methods inherited from class java.lang.Object

Methods inherited from interface freenet.support.CPUInformation.CPUInfo

Constructor Detail

IntelInfoImpl

Method Detail

getCPUModelString

IsAtomCompatible

IsBroadwellCompatible

IsCore2Compatible

IsCoreiCompatible

IsHaswellCompatible

IsIvyCompatible

IsPentium2Compatible

IsPentium3Compatible

IsPentium4Compatible

IsPentiumCompatible

IsPentiumMCompatible

IsPentiumMMXCompatible

IsSandyCompatible

IsSkylakeCompatible