1 /* Machine-dependent software floating-point definitions.
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).
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.
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.
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. */
25 #ifndef _SFP_MACHINE_H
26 #define _SFP_MACHINE_H
29 #define __BYTE_ORDER __BIG_ENDIAN
30 #define __LITTLE_ENDIAN 0
32 #define __BYTE_ORDER __LITTLE_ENDIAN
33 #define __BIG_ENDIAN 0
36 #define _FP_W_TYPE_SIZE 32
37 #define _FP_W_TYPE unsigned long
38 #define _FP_WS_TYPE signed long
39 #define _FP_I_TYPE long
41 #define _FP_MUL_MEAT_S(R,X,Y) \
42 _FP_MUL_MEAT_1_wide(_FP_WFRACBITS_S,R,X,Y,umul_ppmm)
43 #define _FP_MUL_MEAT_D(R,X,Y) \
44 _FP_MUL_MEAT_2_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm)
45 #define _FP_MUL_MEAT_Q(R,X,Y) \
46 _FP_MUL_MEAT_4_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm)
48 #define _FP_DIV_MEAT_S(R,X,Y) _FP_DIV_MEAT_1_udiv(S,R,X,Y)
49 #define _FP_DIV_MEAT_D(R,X,Y) _FP_DIV_MEAT_2_udiv(D,R,X,Y)
50 #define _FP_DIV_MEAT_Q(R,X,Y) _FP_DIV_MEAT_4_udiv(Q,R,X,Y)
52 #define _FP_NANFRAC_S ((_FP_QNANBIT_S << 1) - 1)
53 #define _FP_NANFRAC_D ((_FP_QNANBIT_D << 1) - 1), -1
54 #define _FP_NANFRAC_Q ((_FP_QNANBIT_Q << 1) - 1), -1, -1, -1
55 #define _FP_NANSIGN_S 0
56 #define _FP_NANSIGN_D 0
57 #define _FP_NANSIGN_Q 0
59 #define _FP_KEEPNANFRACP 1
62 * If one NaN is signaling and the other is not,
63 * we choose that one, otherwise we choose X.
65 #define _FP_CHOOSENAN(fs, wc, R, X, Y, OP) \
67 if ((_FP_FRAC_HIGH_RAW_##fs(X) & _FP_QNANBIT_##fs) \
68 && !(_FP_FRAC_HIGH_RAW_##fs(Y) & _FP_QNANBIT_##fs)) \
71 _FP_FRAC_COPY_##wc(R,Y); \
76 _FP_FRAC_COPY_##wc(R,X); \
81 //#define FP_ROUNDMODE FPSCR_RM
82 #define FP_DENORM_ZERO 1/*FPSCR_DN*/
84 /* Exception flags. */
85 #define FP_EX_INVALID (1<<4)
86 #define FP_EX_DIVZERO (1<<3)
87 #define FP_EX_OVERFLOW (1<<2)
88 #define FP_EX_UNDERFLOW (1<<1)
89 #define FP_EX_INEXACT (1<<0)