GNU/Linux |
RedHat 6.2(Zoot) |
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__setfpucw(3) |
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__setfpucw − set fpu control word on i386 architecture
#include <i386/fpu_control.h>
void __setfpucw((unsigned short) control_word);
__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.
__setfpucw(0x1372)
Set fpu control
word on i386 architecture to
- extended precision
- rounding to nearest
- exceptions on overflow, zero divide and NaN
/usr/include/i386/fpu_control.h
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__setfpucw(3) | ![]() |