pOEMIsProcessorFeaturePresent (Windows Embedded CE 6.0)
1/5/2010
This function points to the IsProcessorFeaturePresent function, if defined.
OEMs should implement this function if the processor supports extended features.
Syntax
extern BOOL (*pOEMIsProcessorFeaturePresent)(
DWORD dwProcessorFeature
);
Parameters
dwProcessorFeature
[in] Specifies the flag for the feature that you want to verify support for.The following table shows the flags for ARM processor features.
Flag Description PF_ARM_V4
ARM architecture v4
PF_ARM_V5
ARM architecture v5
PF_ARM_V6
ARM architecture v6
PF_ARM_V7
ARM architecture v7
PF_ARM_THUMB
Thumb instruction set
PF_ARM_JAZELLE
ARM Jazelle technology
PF_ARM_DSP
'E' DSP instructions
This flag is deprecated, but no additional flag is required because this is covered by ARMv5 and later.
PF_ARM_MOVE_CP
ARM MOVE coprocessor
PF_ARM_VFP10
VFP10 floating-point unit (FPU)
This flag is deprecated. For the correct flags to use, please see the other VFP flags.
PF_ARM_MPU
Support for memory protection unit (MPU) is available
PF_ARM_WRITE_BUFFER
Writeback buffer
PF_ARM_MBX
ARM MBX technology
PF_ARM_L2CACHE
Level 2 cache controller
This flag is deprecated. For the correct flags to use, see the other L2 cache flags.
PF_ARM_PHYSICALLY_TAGGED_CACHE
Cache is, or can be, physically tagged
PF_ARM_VFP_SINGLE_PRECISION
Single precision vectored floating-point unit
PF_ARM_VFP_DOUBLE_PRECISION
Double precision vectored floating-point unit
PF_ARM_ITCM
Tightly-coupled data memory
PF_ARM_DTCM
Tightly-coupled data memory
PF_ARM_UNIFIED_CACHE
Unified cache
PF_ARM_WRITE_BACK_CACHE
Writeback cache
PF_ARM_CACHE_CAN_BE_LOCKED_DOWN
Cache can be locked down
PF_ARM_L2CACHE_MEMORY_MAPPED
Level 2 cache controller implemented as a memory-mapped peripheral
PF_ARM_L2CACHE_COPROC
Level 2 cache controller implemented as a coprocessor
PF_ARM_INTEL_XSCALE
Intel XScale processor
This can be used to determine if the processor supports operations where
src==dest.PF_ARM_INTEL_PMU
Performance Monitor Unit (PMU)
PF_ARM_INTEL_WMMX
WMMX support
The following table shows the flags for MIPS processor features.
Flag Description PF_MIPS_MIPSII
MIPSII instruction set
PF_MIPS_MIPSIII
MIPSIII instruction set
PF_MIPS_MIPSIV
MIPSIV instruction set
PF_MIPS_SMART_ASE
MIPS smart card architecture specific extension
PF_MIPS_MIPS16
MIPS16 instruction set
PF_MIPS_MIPS32
MIPS32 instruction set
PF_MIPS_MIPS64
MIPS64 instruction set
PF_MIPS_FPU
FPU support
PF_MIPS_CPU_4KEX
R4K exception model
PF_MIPS_CPU_4KTLB
R4K translation look-aside buffer (TLB) handler
PF_MIPS_CPU_32FPR
32 double precision FP registers
PF_MIPS_CPU_COUNTER
Cycle count or compare
PF_MIPS_CPU_WATCH
Watchpoint registers
PF_MIPS_CPU_DIVEC
Dedicated interrupt vector
PF_MIPS_CPU_VCE
Virtual coherence conflict
PF_MIPS_CPU_CACHE_CDEX
Create_Dirty_Exclusive cache operation
PF_MIPS_CPU_MCHECK
Machine check exception
PF_MIPS_CPU_EJTAG
EJTAG exception
PF_MIPS_PERF_COUNTER
Performance counter
PF_MIPS_ARCH_2
Architecture release 2
The following table shows the flags for SHx processor features.
Flag Description PF_SHX_SH3
SH3 instruction set
PF_SHX_SH4
SH4 instruction set
PF_SHX_SH5
SH5 instruction set
PF_SHX_DSP
Digital signal processor (DSP)
PF_SHX_FPU
Floating-point unit
The following table shows the flags for x86 processor features.
Flag Description PF_FLOATING_POINT_PRECISION_ERRATA
Floating-point precision error
PF_FLOATING_POINT_EMULATED
Floating-point operations are emulated
PF_COMPARE_EXCHANGE_DOUBLE
Compare and exchange double operation
PF_MMX_INSTRUCTIONS_AVAILABLE
MMX instruction set
PF_XMMI_INSTRUCTIONS_AVAILABLE
SSE instruction set
PF_3DNOW_INSTRUCTIONS_AVAILABLE
3D-Now instruction set
PF_RDTSC_INSTRUCTION_AVAILABLE
RDTSC instruction
Note
All other PF_XXX flags to pOEMIsProcessorFeaturePresent return FALSE.
Return Value
Returns nonzero if the processor feature is supported; otherwise, the function returns FALSE.
Remarks
The PF_XXX flags in dwProcessorFeature are filtered based on the CPU type. Depending on the processor being compiled, only the PF_XXX flags corresponding to your CPU are present. If you verify support for an unsupported feature, the function returns FALSE.
Requirements
| Header | Developer Implemented |
| Library | OEMMain.lib or OEMMain_StaticKITL.lib |
| Windows Embedded CE | Windows CE 5.0 and later |