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      1 /*
      2  * Copyright (C) 2012-2024 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 
     26 void
     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