1 /* SPARC floating point unit related functions.
2    Copyright (C) 2001-2010 Roberto Bagnara <bagnara@cs.unipr.it>
3    Copyright (C) 2010-2016 BUGSENG srl (http://bugseng.com)
4 
5 This file is part of the Parma Polyhedra Library (PPL).
6 
7 The PPL is free software; you can redistribute it and/or modify it
8 under the terms of the GNU General Public License as published by the
9 Free Software Foundation; either version 3 of the License, or (at your
10 option) any later version.
11 
12 The PPL is distributed in the hope that it will be useful, but WITHOUT
13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
15 for more details.
16 
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software Foundation,
19 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1307, USA.
20 
21 For the most up-to-date information see the Parma Polyhedra Library
22 site: http://bugseng.com/products/ppl/ . */
23 
24 #ifndef PPL_fpu_sparc_inlines_hh
25 #define PPL_fpu_sparc_inlines_hh 1
26 
27 #ifdef PPL_HAVE_IEEEFP_H
28 #include <ieeefp.h>
29 
30 #define PPL_FPU_TONEAREST  ((int) FP_RN)
31 #define PPL_FPU_UPWARD     ((int) FP_RP)
32 #define PPL_FPU_DOWNWARD   ((int) FP_RM)
33 #define PPL_FPU_TOWARDZERO ((int) FP_RZ)
34 
35 namespace Parma_Polyhedra_Library {
36 
37 inline void
fpu_initialize_control_functions()38 fpu_initialize_control_functions() {
39 }
40 
41 inline fpu_rounding_direction_type
fpu_get_rounding_direction()42 fpu_get_rounding_direction() {
43   return static_cast<fpu_rounding_direction_type>(fpgetround());
44 }
45 
46 inline void
fpu_set_rounding_direction(fpu_rounding_direction_type dir)47 fpu_set_rounding_direction(fpu_rounding_direction_type dir) {
48   fpsetround((fp_rnd) dir);
49 }
50 
51 inline fpu_rounding_control_word_type
fpu_save_rounding_direction(fpu_rounding_direction_type dir)52 fpu_save_rounding_direction(fpu_rounding_direction_type dir) {
53   return static_cast<fpu_rounding_control_word_type>(fpsetround((fp_rnd) dir));
54 }
55 
56 inline void
fpu_reset_inexact()57 fpu_reset_inexact() {
58   fp_except except = fpgetmask();
59   except &= ~FP_X_IMP;
60   fpsetmask(except);
61 }
62 
63 inline void
fpu_restore_rounding_direction(fpu_rounding_control_word_type w)64 fpu_restore_rounding_direction(fpu_rounding_control_word_type w) {
65   fpsetround((fp_rnd) w);
66 }
67 
68 inline int
fpu_check_inexact()69 fpu_check_inexact() {
70   return (fpgetmask() & FP_X_IMP) ? 1 : 0;
71 }
72 
73 } // namespace Parma_Polyhedra_Library
74 
75 #endif // !defined(PPL_HAVE_IEEEFP_H)
76 
77 #endif // !defined(PPL_fpu_sparc_inlines_hh)
78