writegsbyte-writegsdword-writegsqword-writegsword.md

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Learn more about: __writegsbyte, __writegsdword, __writegsqword, __writegsword	__writegsbyte, __writegsdword, __writegsqword, __writegsword	09/02/2019	__writegsbyte __writegsqword __writegsdword __writegsword	__writegsqword intrinsic __writegsbyte intrinsic __writegsword intrinsic __writegsdword intrinsic	7746cf6d-2259-4139-9aab-c07dd75c8037

__writegsbyte, __writegsdword, __writegsqword, __writegsword

Microsoft Specific

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

Syntax

void __writegsbyte(
   unsigned long Offset,
   unsigned char Data
);
void __writegsword(
   unsigned long Offset,
   unsigned short Data
);
void __writegsdword(
   unsigned long Offset,
   unsigned long Data
);
void __writegsqword(
   unsigned long Offset,
   unsigned __int64 Data
);

Parameters

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

Data
[in] The value to write.

Requirements

Intrinsic	Architecture
__writegsbyte	x64
__writegsdword	x64
__writegsqword	x64
__writegsword	x64

Header file <intrin.h>

Remarks

These routines are only available as an intrinsic.

END Microsoft Specific

See also

__readgsbyte, __readgsdword, __readgsqword, __readgsword
Compiler intrinsics