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x86 Intrinsics

The Visual C++ compiler makes the following intrinsics available on the x86 architecture:

_AddressOfReturnAddress	__addfsbyte	__addfsword
__addfsdword	__assume	_BitScanForward
_BitScanReverse	_bittest	_bittestandcomplement
_bittestandreset	_bittestandset	__cpuid
__debugbreak	_disable	__emul
__emulu	_enable	__getcallerseflags
__incfsbyte	__incfsword	__incfsdword
__int2c	_InterlockedAddLargeStatistic
_InterlockedAnd	_interlockedbittestandreset	_interlockedbittestandset
_InterlockedCompareExchange	_InterlockedCompareExchange16	_InterlockedCompareExchange64
_InterlockedDecrement	_InterlockedDecrement16	_InterlockedExchange
_InterlockedExchangeAdd	_InterlockedIncrement	_InterlockedIncrement16
_InterlockedOr	_InterlockedXor	__ll_lshift
__ll_rshift	__noop	_ReadBarrier
__readfsbyte	__readfsdword	__readfsqword
__readfsword	_ReadWriteBarrier	_ReturnAddress
_rotl8	_rotl16	_rotr8
_rotr16	__ull_rshift	_WriteBarrier
__writefsbyte	__writefsdword	__writefsqword
__writefsword

In addition, the Visual C++ compiler supports intrinsics for MMX, Streaming SIMD Extensions (SSE), and Streaming SIMD Extensions 2 (SSE2). For more information, see MMX, SSE, and SSE2 Intrinsics.

Also, many functions in the CRT are implemented as intrinsics on the x86 platform.

Note The following functions without the preceding underscore are only available when you use /Ze:

inp	_inp	inpd
_inpd	inpw	_inpw
outp	_outp	outpd
_outpd	outpw	_outpw

Reference

Compiler Intrinsics

Other Resources

C++ Language Reference

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