__readgsbyte, __readgsdword, __readgsqword, __readgsword

Microsoft Specific

Read memory from a location specified by an offset relative to the beginning of the GS segment.

unsigned char __readgsbyte( 
   unsigned long Offset 
);
unsigned short __readgsword( 
   unsigned long Offset 
);
unsigned long __readgsdword( 
   unsigned long Offset
);
unsigned __int64 __readgsqword( 
   unsigned long Offset 
);

Parameters

  • [in] Offset
    The offset from the beginning of GS to read from.

Return Value

The memory contents of the byte, word, double word, or quadword (as indicated by the name of the function called) at the location GS:[Offset].

Requirements

Intrinsic

Architecture

__readgsbyte

x64

__readgsdword

x64

__readgsqword

x64

__readgsword

x64

Header file <intrin.h>

Remarks

These intrinsics are only available in kernel mode, and the routines are only available as intrinsics.

See Also

Concepts

__writegsbyte, __writegsdword, __writegsqword, __writegsword

Compiler Intrinsics