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__readfsbyte, __readfsdword, __readfsqword, __readfsword

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Microsoft Specific

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

Syntax

unsigned char __readfsbyte(
   unsigned long Offset
);
unsigned short __readfsword(
   unsigned long Offset
);
unsigned long __readfsdword(
   unsigned long Offset
);
unsigned __int64 __readfsqword(
   unsigned long Offset
);

Parameters

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

Return value

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

Requirements

Intrinsic Architecture
__readfsbyte x86
__readfsdword x86
__readfsqword x86
__readfsword x86

Header file <intrin.h>

Remarks

These routines are available only as intrinsics.

END Microsoft Specific

See also

__writefsbyte, __writefsdword, __writefsqword, __writefsword
Compiler intrinsics