1 /* _umodsi3 for Lattice Mico32.
2 Contributed by Jon Beniston <jon@beniston.com>
4 Copyright (C) 2009-2024 Free Software Foundation, Inc.
6 This file is free software; you can redistribute it and/or modify it
7 under the terms of the GNU General Public License as published by the
8 Free Software Foundation; either version 3, or (at your option) any
11 This file is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 General Public License for more details.
16 Under Section 7 of GPL version 3, you are granted additional
17 permissions described in the GCC Runtime Library Exception, version
18 3.1, as published by the Free Software Foundation.
20 You should have received a copy of the GNU General Public License and
21 a copy of the GCC Runtime Library Exception along with this program;
22 see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
23 <http://www.gnu.org/licenses/>. */
25 #include "libgcc_lm32.h"
27 /* Unsigned modulus. */
30 __umodsi3 (USItype a
, USItype b
)
34 /* Raise divide by zero exception. */
36 /* Save interrupt enable. */
37 __asm__
__volatile__ ("rcsr %0, IE":"=r" (sr
));
39 __asm__
__volatile__ ("wcsr IE, %0"::"r" (sr
));
40 /* Branch to exception handler. */
41 __asm__
__volatile__ ("rcsr %0, EBA":"=r" (eba
));
43 __asm__
__volatile__ ("mv ea, ra");
44 __asm__
__volatile__ ("b %0"::"r" (eba
));
45 __builtin_unreachable ();
48 return __udivmodsi4 (a
, b
, 1);