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944b8b35 | 1 | /* Fallback FPU-related code (for systems not otherwise supported). |
a945c346 | 2 | Copyright (C) 2005-2024 Free Software Foundation, Inc. |
944b8b35 FXC |
3 | Contributed by Francois-Xavier Coudert <coudert@clipper.ens.fr> |
4 | ||
1028b2bd | 5 | This file is part of the GNU Fortran runtime library (libgfortran). |
944b8b35 FXC |
6 | |
7 | Libgfortran is free software; you can redistribute it and/or | |
8 | modify it under the terms of the GNU General Public | |
9 | License as published by the Free Software Foundation; either | |
748086b7 | 10 | version 3 of the License, or (at your option) any later version. |
944b8b35 FXC |
11 | |
12 | Libgfortran is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
748086b7 JJ |
17 | Under Section 7 of GPL version 3, you are granted additional |
18 | permissions described in the GCC Runtime Library Exception, version | |
19 | 3.1, as published by the Free Software Foundation. | |
20 | ||
21 | You should have received a copy of the GNU General Public License and | |
22 | a copy of the GCC Runtime Library Exception along with this program; | |
23 | see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
24 | <http://www.gnu.org/licenses/>. */ | |
944b8b35 FXC |
25 | |
26 | ||
27 | /* Fallback FPU-related code for systems not otherwise supported. This | |
28 | is mainly telling the user that we will not be able to do what he | |
29 | requested. */ | |
30 | ||
31 | void | |
32 | set_fpu (void) | |
33 | { | |
34 | if (options.fpe & GFC_FPE_INVALID) | |
1028b2bd JB |
35 | estr_write ("Fortran runtime warning: IEEE 'invalid operation' " |
36 | "exception not supported.\n"); | |
944b8b35 | 37 | if (options.fpe & GFC_FPE_DENORMAL) |
57b4d355 | 38 | estr_write ("Fortran runtime warning: Floating point 'denormal operand' " |
1028b2bd | 39 | "exception not supported.\n"); |
944b8b35 | 40 | if (options.fpe & GFC_FPE_ZERO) |
1028b2bd JB |
41 | estr_write ("Fortran runtime warning: IEEE 'division by zero' " |
42 | "exception not supported.\n"); | |
944b8b35 | 43 | if (options.fpe & GFC_FPE_OVERFLOW) |
1028b2bd JB |
44 | estr_write ("Fortran runtime warning: IEEE 'overflow' " |
45 | "exception not supported.\n"); | |
944b8b35 | 46 | if (options.fpe & GFC_FPE_UNDERFLOW) |
1028b2bd JB |
47 | estr_write ("Fortran runtime warning: IEEE 'underflow' " |
48 | "exception not supported.\n"); | |
57b4d355 JB |
49 | if (options.fpe & GFC_FPE_INEXACT) |
50 | estr_write ("Fortran runtime warning: IEEE 'inexact' " | |
1028b2bd | 51 | "exception not supported.\n"); |
944b8b35 | 52 | } |
fa86f4f9 | 53 | |
8b198102 FXC |
54 | void |
55 | set_fpu_trap_exceptions (int trap __attribute__((unused)), | |
56 | int notrap __attribute__((unused))) | |
57 | { | |
58 | } | |
59 | ||
fa86f4f9 TB |
60 | int |
61 | get_fpu_except_flags (void) | |
62 | { | |
63 | return 0; | |
64 | } | |
82a4f54c TB |
65 | |
66 | ||
67 | int | |
68 | get_fpu_rounding_mode (void) | |
4637a1d2 FXC |
69 | { |
70 | return 0; | |
71 | } | |
72 | ||
73 | ||
74 | int | |
75 | support_fpu_rounding_mode (int mode __attribute__((unused))) | |
76 | { | |
82a4f54c | 77 | return 0; |
4637a1d2 | 78 | } |
82a4f54c TB |
79 | |
80 | ||
81 | void | |
82 | set_fpu_rounding_mode (int round __attribute__((unused))) | |
83 | { | |
84 | } | |
f5168e47 FXC |
85 | |
86 | ||
87 | int | |
88 | support_fpu_underflow_control (int kind __attribute__((unused))) | |
89 | { | |
90 | return 0; | |
91 | } | |
92 | ||
93 | ||
94 | int | |
95 | get_fpu_underflow_mode (void) | |
96 | { | |
97 | return 0; | |
98 | } | |
99 | ||
100 | ||
101 | void | |
102 | set_fpu_underflow_mode (int gradual __attribute__((unused))) | |
103 | { | |
104 | } | |
105 |