Subversion Repositories openrisc_me

#include <ieeefp.h>

fp_rnd

_DEFUN_VOID(fpgetround)

{

  char *out;

  ieee_flags("get", "direction","", &out);

  if (strcmp(out,"nearest") == 0) return FP_RN;

  if (strcmp(out,"negative") == 0) return FP_RM;

  if (strcmp(out,"positive") == 0) return FP_RP;

  if (strcmp(out,"tozero") == 0) return FP_RZ;

  abort();

}

fp_rnd

_DEFUN(fpsetround,(new),

       fp_rnd new)

{

  fp_rnd old = fpgetround();

  char *dummy;

  switch (new)

  {

  case FP_RN:

    ieee_flags("set", "direction", "nearest", &dummy);

    break;

  case FP_RM:

    ieee_flags("set", "direction", "negative", &dummy);

    break;

  case FP_RP:

    ieee_flags("set", "direction", "positive", &dummy);

    break;

  case FP_RZ:

    ieee_flags("set", "direction", "tozero", &dummy);

    break;

  default:

    break;

  }

  return old;

}

fp_except

_DEFUN_VOID(fpgetmask)

{

  char *out;

  int r = 0;

  int i = ieee_flags("get","exception","",&out);

  if (i & 1) r |= FP_X_IMP;

  if (i & 2) r |= FP_X_DX;

  if (i & 4) r |= FP_X_UFL;

  if (i & 8) r |= FP_X_OFL;

  if (i & 16) r |= FP_X_INV;

  return r;

}

fp_except

_DEFUN(fpsetmask,(mask),

       fp_except mask)

{

  fp_except old = fpgetmask();

  char *out;

  ieee_flags("clear","exception", "all", &out);

  if (mask & FP_X_IMP)

   ieee_flags("set","exception","inexact", &out);

  if (mask  & FP_X_DX)

   ieee_flags("set","exception","division", &out);

  if (mask & FP_X_UFL)

   ieee_flags("set","exception","underflow", &out);

  if (mask & FP_X_OFL)

   ieee_flags("set","exception","overflow", &out);

  if (mask & FP_X_INV)

   ieee_flags("set","exception","invalid", &out);

  return old;

}

fp_except

_DEFUN(fpsetsticky,(mask),

       fp_except mask)

{

  return fpsetmask(mask);

}

fp_except

_DEFUN_VOID(fpgetsticky)

{

  return fpgetmask();

}

int

_DEFUN(fpsetroundtoi,(rdi_mode),

       fp_rdi rdi_mode)

{

  return 0;

}

int

_DEFUN_VOID(fpgetroundtoi)

{

  return 0;

}