__SETFPUCW (3)
set fpu control word on i386 architecture
SYNOPSIS
#include <i386/fpu_control.h>
void __setfpucw((unsigned short) control_word );
DESCRIPTION
__setfpucw
transfer
control_word
to the registers of the fpu (floating point unit) on i386 architecture. This
can be used to control floating point precision, rounding and floating point
exceptions.
EXAMPLE
__setfpucw(0x1372)
Set fpu control word on i386 architecture to
- extended precision
- rounding to nearest
- exceptions on overflow, zero divide and NaN
SEE ALSO
/usr/include/i386/fpu_control h
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