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QueryInstructionSet

Windows Mobile 6.5
A version of this page is also available for
4/8/2010

This function queries to determine what instruction set is supported in the OS.


BOOL QueryInstructionSet(
  DWORD dwInstructionSet,
  LPDWORD lpdwCurrentInstructionSet
);

dwInstructionSet

[in] The instruction set that will be queried to determine if it is supported by the currently running OS. The following table shows possible values.

Aa911501.note(en-us,MSDN.10).gifNote:
Windows Mobile only supports processors based on the ARM architecture.

Value Description Floating point hardware Floating point emulation

PROCESSOR_ARM_V4_INSTRUCTION

ARM V4 instruction set.

No

Yes

PROCESSOR_ARM_V4FP_INSTRUCTION

ARM V4 instruction set.

Yes

No

PROCESSOR_ARM_V4I_INSTRUCTION

ARM V4 with Thumb instruction set.

No

Yes

PROCESSOR_ARM_V4IFP_INSTRUCTION

ARM V4 with Thumb instruction set.

Yes

No

PROCESSOR_ARM_V4T_INSTRUCTION

ARM V4 with Thumb instruction set.

No

Yes

PROCESSOR_ARM_V4TFP_INSTRUCTION

ARM V4 with Thumb instruction set.

Yes

No

PROCESSOR_QUERY_INSTRUCTION

Request to have the current instruction set reported to the caller.

No

No

lpdwCurrentInstructionSet

[out] Returns the current instruction set supported by the OS.

TRUE indicates that the instruction set passed in through dwInstructionSet is supported by the current OS or that dwInstructionSet is set to PROCESSOR_QUERY_INSTRUCTION. The lpdwCurrentInstructionSet parameter is then set to the current instruction set supported.

FALSE indicates that the instructions set is not supported or the dwInstructionSet value is unknown.

This function can be used by any application that needs to determine if the code about to install or run will work on the current OS. The OS knows explicitly what instruction it will run, and therefore informs you if your installation should continue.

The following table shows the instruction set compatibility.

OS instructions set Supported instruction sets

PROCESSOR_ARM_V4_INSTRUCTION

PROCESSOR_ARM_V4_INSTRUCTION

PROCESSOR_ARM_V4FP_INSTRUCTION

PROCESSOR_ARM_V4FP_INSTRUCTION

PROCESSOR_ARM_V4_INSTRUCTION

PROCESSOR_ARM_V4I_INSTRUCTION

PROCESSOR_ARM_V4I_INSTRUCTION

PROCESSOR_ARM_V4T_INSTRUCTION

PROCESSOR_ARM_V4IFP_INSTRUCTION

PROCESSOR_ARM_V4IFP_INSTRUCTION

PROCESSOR_ARM_V4TFP_INSTRUCTION

PROCESSOR_ARM_V4I_INSTRUCTION

PROCESSOR_ARM_V4T_INSTRUCTION

PROCESSOR_ARM_V4T_INSTRUCTION

PROCESSOR_ ARM_V4I_INSTRUCTION

PROCESSOR_ARM_V4T_INSTRUCTION

PROCESSOR_ARM_V4TFP_INSTRUCTION

PROCESSOR_ARM_V4TFP_INSTRUCTION

PROCESSOR_ARM_V4IFP_INSTRUCTION

PROCESSOR_ARM_V4I_INSTRUCTION

PROCESSOR_ARM_V4T_INSTRUCTION

Headerwinbase.h
Librarycoredll.lib
Windows Embedded CEWindows CE .NET 4.0 and later
Windows MobileWindows Mobile Version 5.0 and later

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