sfp-machine.h

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/* Machine-dependent software floating-point definitions.
   SuperH kernel version.
   Copyright (C) 1997,1998,1999 Free Software Foundation, Inc.
   This file is part of the GNU C Library.
   Contributed by Richard Henderson ([email protected]),
          Jakub Jelinek ([email protected]),
          David S. Miller ([email protected]) and
          Peter Maydell ([email protected]).

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public License as
   published by the Free Software Foundation; either version 2 of the
   License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public
   License along with the GNU C Library; see the file COPYING.LIB.  If
   not, write to the Free Software Foundation, Inc.,
   59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */

#ifndef _SFP_MACHINE_H
#define _SFP_MACHINE_H

#define _FP_W_TYPE_SIZE     32
#define _FP_W_TYPE      unsigned long
#define _FP_WS_TYPE     signed long
#define _FP_I_TYPE      long

#define _FP_MUL_MEAT_S(R,X,Y)                   \
  _FP_MUL_MEAT_1_wide(_FP_WFRACBITS_S,R,X,Y,umul_ppmm)
#define _FP_MUL_MEAT_D(R,X,Y)                   \
  _FP_MUL_MEAT_2_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm)
#define _FP_MUL_MEAT_Q(R,X,Y)                   \
  _FP_MUL_MEAT_4_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm)

#define _FP_DIV_MEAT_S(R,X,Y)   _FP_DIV_MEAT_1_udiv(S,R,X,Y)
#define _FP_DIV_MEAT_D(R,X,Y)   _FP_DIV_MEAT_2_udiv(D,R,X,Y)
#define _FP_DIV_MEAT_Q(R,X,Y)   _FP_DIV_MEAT_4_udiv(Q,R,X,Y)

#define _FP_NANFRAC_S       ((_FP_QNANBIT_S << 1) - 1)
#define _FP_NANFRAC_D       ((_FP_QNANBIT_D << 1) - 1), -1
#define _FP_NANFRAC_Q       ((_FP_QNANBIT_Q << 1) - 1), -1, -1, -1
#define _FP_NANSIGN_S       0
#define _FP_NANSIGN_D       0
#define _FP_NANSIGN_Q       0

#define _FP_KEEPNANFRACP 1

/*
 * If one NaN is signaling and the other is not,
 * we choose that one, otherwise we choose X.
 */
#define _FP_CHOOSENAN(fs, wc, R, X, Y, OP)                      \
  do {                                                          \
    if ((_FP_FRAC_HIGH_RAW_##fs(X) & _FP_QNANBIT_##fs)          \
        && !(_FP_FRAC_HIGH_RAW_##fs(Y) & _FP_QNANBIT_##fs))     \
      {                                                         \
        R##_s = Y##_s;                                          \
        _FP_FRAC_COPY_##wc(R,Y);                                \
      }                                                         \
    else                                                        \
      {                                                         \
        R##_s = X##_s;                                          \
        _FP_FRAC_COPY_##wc(R,X);                                \
      }                                                         \
    R##_c = FP_CLS_NAN;                                         \
  } while (0)

//#define FP_ROUNDMODE      FPSCR_RM
#define FP_DENORM_ZERO      1/*FPSCR_DN*/

/* Exception flags. */
#define FP_EX_INVALID       (1<<4)
#define FP_EX_DIVZERO       (1<<3)
#define FP_EX_OVERFLOW      (1<<2)
#define FP_EX_UNDERFLOW     (1<<1)
#define FP_EX_INEXACT       (1<<0)

#endif