__readfsbyte, __readfsdword, __readfsqword, __readfsword
Microsoft Specific
Read memory from a location specified by an offset relative to the beginning of the FS segment.
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
- [in] Offset
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 intrinsics are only available in kernel mode, and the routines are only available as intrinsics.
END Microsoft Specific
See Also
Reference
__writefsbyte, __writefsdword, __writefsqword, __writefsword
Compiler Intrinsics