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Reads the program status and control (EFLAGS) register.


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

Return Value

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>

END Microsoft Specific

See Also

Compiler Intrinsics