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The latest version of this topic can be found at __sidt.

Microsoft Specific**

Stores the value of the interrupt descriptor table register (IDTR) in the specified memory location.

void __sidt(  
     void *Destination);  


[in] DestinationA pointer to the memory location where the IDTR is stored.
__sidtx86, x64

Header file <intrin.h>

The __sidt function is equivalent to the SIDT machine instruction. For more information, search for the document, "Intel Architecture Software Developer's Manual, Volume 2: Instruction Set Reference," at the Intel Corporation site.

Compiler Intrinsics