1/* 2 * Copyright (C) 2012-2015 Free Software Foundation, Inc. 3 * 4 * This file is free software; you can redistribute it and/or modify it 5 * under the terms of the GNU General Public License as published by the 6 * Free Software Foundation; either version 3, or (at your option) any 7 * later version. 8 * 9 * This file is distributed in the hope that it will be useful, but 10 * WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 * General Public License for more details. 13 * 14 * Under Section 7 of GPL version 3, you are granted additional 15 * permissions described in the GCC Runtime Library Exception, version 16 * 3.1, as published by the Free Software Foundation. 17 * 18 * You should have received a copy of the GNU General Public License and 19 * a copy of the GCC Runtime Library Exception along with this program; 20 * see the files COPYING3 and COPYING.RUNTIME respectively. If not, see 21 * <http://www.gnu.org/licenses/>. 22 */ 23 24#include "sfp-machine.h" 25 26void 27__sfp_handle_exceptions (int _fex) 28{ 29 double d; 30 31 if (_fex & FP_EX_INVALID) 32 { 33 asm volatile ("frcpa.s0 %0, p1 = f0, f0" : "=f" (d) : : "p1"); 34 } 35 if (_fex & FP_EX_DIVZERO) 36 { 37 asm volatile ("frcpa.s0 %0, p1 = f1, f0" : "=f" (d) : : "p1"); 38 } 39 if (_fex & FP_EX_OVERFLOW) 40 { 41 d = __DBL_MAX__; 42 asm volatile ("fadd.d.s0 %0 = %0, %0" : "+f" (d)); 43 } 44 if (_fex & FP_EX_UNDERFLOW) 45 { 46 d = __DBL_MIN__; 47 asm volatile ("fnma.d.s0 %0 = %0, %0, f0" : "+f" (d)); 48 } 49 if (_fex & FP_EX_INEXACT) 50 { 51 d = __DBL_MAX__; 52 asm volatile ("fsub.d.s0 %0 = %0, f1" : "+f" (d)); 53 } 54} 55