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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 | ||
4b565680 TY |
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 |