clearfp.c File Reference

#include <precomp.h>

Include dependency graph for clearfp.c:

Go to the source code of this file.

Functions
unsigned int	_statusfp (void)
unsigned int CDECL	_clearfp (void)

Function Documentation

_clearfp()

unsigned int CDECL _clearfp

(

void

)

Definition at line 18 of file clearfp.c.

{
  unsigned int retVal = _statusfp();
#if defined(__GNUC__)
  __asm__ __volatile__( "fnclex" );
#else
  __asm fnclex;
#endif
  return retVal;
}

Referenced by main().

_statusfp()

unsigned int _statusfp

(

void

)

Definition at line 10 of file _statusfp.c.

{
    unsigned int flags = 0;
    ARM_FPSCR fpscr;

    fpscr.raw = __getfp();

    if (fpscr.data.exception & ARM_CW_IM) flags |= _SW_INVALID;
    if (fpscr.data.exception & ARM_CW_ZM) flags |= _SW_ZERODIVIDE;
    if (fpscr.data.exception & ARM_CW_OM) flags |= _SW_OVERFLOW;
    if (fpscr.data.exception & ARM_CW_UM) flags |= _SW_UNDERFLOW;
    if (fpscr.data.exception & ARM_CW_PM) flags |= _SW_INEXACT;
    if (fpscr.data.exception & ARM_CW_DM) flags |= _SW_DENORMAL;
    return flags;
}

Referenced by _clearfp().