1 /* Copyright (C) 2007-2020 Free Software Foundation, Inc. 2 3 This file is part of GCC. 4 5 GCC is free software; you can redistribute it and/or modify it under 6 the terms of the GNU General Public License as published by the Free 7 Software Foundation; either version 3, or (at your option) any later 8 version. 9 10 GCC is distributed in the hope that it will be useful, but WITHOUT ANY 11 WARRANTY; without even the implied warranty of MERCHANTABILITY or 12 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 13 for more details. 14 15 Under Section 7 of GPL version 3, you are granted additional 16 permissions described in the GCC Runtime Library Exception, version 17 3.1, as published by the Free Software Foundation. 18 19 You should have received a copy of the GNU General Public License and 20 a copy of the GCC Runtime Library Exception along with this program; 21 see the files COPYING3 and COPYING.RUNTIME respectively. If not, see 22 <http://www.gnu.org/licenses/>. */ 23 24 #include "bid_internal.h" 25 #include "bid_gcc_intrinsics.h" 26 27 #if DECIMAL_GLOBAL_ROUNDING 28 BID_THREAD _IDEC_round _IDEC_glbround = ROUNDING_TO_NEAREST; 29 30 #if DECIMAL_GLOBAL_ROUNDING_ACCESS_FUNCTIONS 31 void __dfp_set_round(int mode)32__dfp_set_round (int mode) { 33 _IDEC_glbround = mode; 34 } 35 36 int __dfp_get_round(void)37__dfp_get_round (void) { 38 return _IDEC_glbround; 39 } 40 #endif 41 #endif 42 43 #if DECIMAL_GLOBAL_EXCEPTION_FLAGS 44 BID_THREAD _IDEC_flags _IDEC_glbflags = EXACT_STATUS; 45 46 #if DECIMAL_GLOBAL_EXCEPTION_FLAGS_ACCESS_FUNCTIONS 47 #include <fenv.h> 48 49 void __dfp_clear_except(void)50__dfp_clear_except (void) { 51 _IDEC_glbflags &= ~FLAG_MASK; 52 } 53 54 int __dfp_test_except(int mask)55__dfp_test_except (int mask) { 56 int flags = 0; 57 58 if ((_IDEC_glbflags & INEXACT_EXCEPTION) != 0) 59 flags |= mask & FE_INEXACT; 60 if ((_IDEC_glbflags & UNDERFLOW_EXCEPTION) != 0) 61 flags |= mask & FE_UNDERFLOW; 62 if ((_IDEC_glbflags & OVERFLOW_EXCEPTION) != 0) 63 flags |= mask & FE_OVERFLOW; 64 if ((_IDEC_glbflags & ZERO_DIVIDE_EXCEPTION) != 0) 65 flags |= mask & FE_DIVBYZERO; 66 if ((_IDEC_glbflags & INVALID_EXCEPTION) != 0) 67 flags |= mask & FE_INVALID; 68 69 return flags; 70 } 71 72 void __dfp_raise_except(int mask)73__dfp_raise_except (int mask) { 74 _IDEC_flags flags = 0; 75 76 if ((mask & FE_INEXACT) != 0) 77 flags |= INEXACT_EXCEPTION; 78 if ((mask & FE_UNDERFLOW) != 0) 79 flags |= UNDERFLOW_EXCEPTION; 80 if ((mask & FE_OVERFLOW) != 0) 81 flags |= OVERFLOW_EXCEPTION; 82 if ((mask & FE_DIVBYZERO) != 0) 83 flags |= ZERO_DIVIDE_EXCEPTION; 84 if ((mask & FE_INVALID) != 0) 85 flags |= INVALID_EXCEPTION; 86 87 _IDEC_glbflags |= flags; 88 } 89 #endif 90 #endif 91 92 #if DECIMAL_ALTERNATE_EXCEPTION_HANDLING 93 #if DECIMAL_GLOBAL_EXCEPTION_MASKS 94 BID_THREAD _IDEC_exceptionmasks _IDEC_glbexceptionmasks = 95 _IDEC_allexcmasksset; 96 #endif 97 #if DECIMAL_GLOBAL_EXCEPTION_INFO 98 BID_THREAD _IDEC_excepthandling _IDEC_glbexcepthandling; 99 #endif 100 #endif 101