| /* libgcc routines for R8C/M16C/M32C |
| Copyright (C) 2005 |
| Free Software Foundation, Inc. |
| Contributed by Red Hat. |
| |
| This file is part of GCC. |
| |
| GCC is free software; you can redistribute it and/or modify it |
| under the terms of the GNU General Public License as published |
| by the Free Software Foundation; either version 2, or (at your |
| option) any later version. |
| |
| In addition to the permissions in the GNU General Public License, |
| the Free Software Foundation gives you unlimited permission to link |
| the compiled version of this file into combinations with other |
| programs, and to distribute those combinations without any |
| restriction coming from the use of this file. (The General Public |
| License restrictions do apply in other respects; for example, they |
| cover modification of the file, and distribution when not linked |
| into a combine executable.) |
| |
| GCC is distributed in the hope that it will be useful, but WITHOUT |
| ANY WARRANTY; without even the implied warranty of MERCHANTABILITY |
| or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public |
| License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GCC; see the file COPYING. If not, write to the Free |
| Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA |
| 02110-1301, USA. */ |
| |
| typedef int HItype __attribute__ ((mode (HI))); |
| typedef unsigned int UHItype __attribute__ ((mode (HI))); |
| typedef int SItype __attribute__ ((mode (SI))); |
| typedef unsigned int USItype __attribute__ ((mode (SI))); |
| |
| typedef int word_type __attribute__ ((mode (__word__))); |
| |
| USItype udivmodsi4 (USItype num, USItype den, word_type modwanted); |
| SItype __divsi3 (SItype a, SItype b); |
| SItype __modsi3 (SItype a, SItype b); |
| SItype __udivsi3 (SItype a, SItype b); |
| SItype __umodsi3 (SItype a, SItype b); |
| |
| USItype |
| udivmodsi4 (USItype num, USItype den, word_type modwanted) |
| { |
| USItype bit = 1; |
| USItype res = 0; |
| |
| while (den < num && bit && !(den & (1L << 31))) |
| { |
| den <<= 1; |
| bit <<= 1; |
| } |
| while (bit) |
| { |
| if (num >= den) |
| { |
| num -= den; |
| res |= bit; |
| } |
| bit >>= 1; |
| den >>= 1; |
| } |
| if (modwanted) |
| return num; |
| return res; |
| } |
| |
| |
| |
| SItype |
| __divsi3 (SItype a, SItype b) |
| { |
| word_type neg = 0; |
| SItype res; |
| |
| if (a < 0) |
| { |
| a = -a; |
| neg = !neg; |
| } |
| |
| if (b < 0) |
| { |
| b = -b; |
| neg = !neg; |
| } |
| |
| res = udivmodsi4 (a, b, 0); |
| |
| if (neg) |
| res = -res; |
| |
| return res; |
| } |
| |
| |
| |
| SItype |
| __modsi3 (SItype a, SItype b) |
| { |
| word_type neg = 0; |
| SItype res; |
| |
| if (a < 0) |
| { |
| a = -a; |
| neg = 1; |
| } |
| |
| if (b < 0) |
| b = -b; |
| |
| res = udivmodsi4 (a, b, 1); |
| |
| if (neg) |
| res = -res; |
| |
| return res; |
| } |
| |
| |
| |
| |
| SItype |
| __udivsi3 (SItype a, SItype b) |
| { |
| return udivmodsi4 (a, b, 0); |
| } |
| |
| |
| |
| SItype |
| __umodsi3 (SItype a, SItype b) |
| { |
| return udivmodsi4 (a, b, 1); |
| } |