1/* Machine-dependent software floating-point definitions.
2   SuperH kernel version.
3   Copyright (C) 1997,1998,1999 Free Software Foundation, Inc.
4   This file is part of the GNU C Library.
5   Contributed by Richard Henderson (rth@cygnus.com),
6		  Jakub Jelinek (jj@ultra.linux.cz),
7		  David S. Miller (davem@redhat.com) and
8		  Peter Maydell (pmaydell@chiark.greenend.org.uk).
9
10   The GNU C Library is free software; you can redistribute it and/or
11   modify it under the terms of the GNU Library General Public License as
12   published by the Free Software Foundation; either version 2 of the
13   License, or (at your option) any later version.
14
15   The GNU C Library is distributed in the hope that it will be useful,
16   but WITHOUT ANY WARRANTY; without even the implied warranty of
17   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
18   Library General Public License for more details.
19
20   You should have received a copy of the GNU Library General Public
21   License along with the GNU C Library; see the file COPYING.LIB.  If
22   not, write to the Free Software Foundation, Inc.,
23   59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
24
25#ifndef _SFP_MACHINE_H
26#define _SFP_MACHINE_H
27
28#define _FP_W_TYPE_SIZE		32
29#define _FP_W_TYPE		unsigned long
30#define _FP_WS_TYPE		signed long
31#define _FP_I_TYPE		long
32
33#define _FP_MUL_MEAT_S(R,X,Y)					\
34  _FP_MUL_MEAT_1_wide(_FP_WFRACBITS_S,R,X,Y,umul_ppmm)
35#define _FP_MUL_MEAT_D(R,X,Y)					\
36  _FP_MUL_MEAT_2_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm)
37#define _FP_MUL_MEAT_Q(R,X,Y)					\
38  _FP_MUL_MEAT_4_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm)
39
40#define _FP_DIV_MEAT_S(R,X,Y)	_FP_DIV_MEAT_1_udiv(S,R,X,Y)
41#define _FP_DIV_MEAT_D(R,X,Y)	_FP_DIV_MEAT_2_udiv(D,R,X,Y)
42#define _FP_DIV_MEAT_Q(R,X,Y)	_FP_DIV_MEAT_4_udiv(Q,R,X,Y)
43
44#define _FP_NANFRAC_S		((_FP_QNANBIT_S << 1) - 1)
45#define _FP_NANFRAC_D		((_FP_QNANBIT_D << 1) - 1), -1
46#define _FP_NANFRAC_Q		((_FP_QNANBIT_Q << 1) - 1), -1, -1, -1
47#define _FP_NANSIGN_S		0
48#define _FP_NANSIGN_D		0
49#define _FP_NANSIGN_Q		0
50
51#define _FP_KEEPNANFRACP 1
52
53/*
54 * If one NaN is signaling and the other is not,
55 * we choose that one, otherwise we choose X.
56 */
57#define _FP_CHOOSENAN(fs, wc, R, X, Y, OP)                      \
58  do {                                                          \
59    if ((_FP_FRAC_HIGH_RAW_##fs(X) & _FP_QNANBIT_##fs)          \
60        && !(_FP_FRAC_HIGH_RAW_##fs(Y) & _FP_QNANBIT_##fs))     \
61      {                                                         \
62        R##_s = Y##_s;                                          \
63        _FP_FRAC_COPY_##wc(R,Y);                                \
64      }                                                         \
65    else                                                        \
66      {                                                         \
67        R##_s = X##_s;                                          \
68        _FP_FRAC_COPY_##wc(R,X);                                \
69      }                                                         \
70    R##_c = FP_CLS_NAN;                                         \
71  } while (0)
72
73//#define FP_ROUNDMODE		FPSCR_RM
74#define FP_DENORM_ZERO		1/*FPSCR_DN*/
75
76/* Exception flags. */
77#define FP_EX_INVALID		(1<<4)
78#define FP_EX_DIVZERO		(1<<3)
79#define FP_EX_OVERFLOW		(1<<2)
80#define FP_EX_UNDERFLOW		(1<<1)
81#define FP_EX_INEXACT		(1<<0)
82
83#endif
84