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__readeflags

This topic is new for Visual Studio 2005 SP1.

Reads the program status and control (EFLAGS) register.


unsigned     int __readeflags(void);
unsigned __int64 __readeflags(void);

The value of the EFLAGS register. The return value is 32 bits long on a 32-bit platform and 64 bits long on a 64-bit platform.

These routines are available only as intrinsics.

Intrinsic

Architecture

__readeflags

x86, x64

Header file <intrin.h>

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