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__mfa

Microsoft Specific

Emits the acceptance form of the IPF Memory Fence (mfa.a) instruction, which sets up a hardware memory fence in which all reads and writes must be accepted by the operating system.

void __mfa(void);

Intrinsic

Architecture

__mfa

IPF

Header file <intrin.h>

A hardware memory fence ensures that all memory reads and writes are made visible to all processors prior to any subsequent memory reads and writes. For more information, see the Intel IPF documentation.

This routine is only available as an intrinsic.

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