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author | Paul Koning <ni1d@arrl.net> | 2018-10-18 14:01:15 -0400 |
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committer | Paul Koning <pkoning@gcc.gnu.org> | 2018-10-18 14:01:15 -0400 |
commit | a9a2fddbf2a93b8427478954d4efe9e02080454f (patch) | |
tree | 043d9eed16a90b5b160b16e2c0a3237ab9e3a2fa /libgcc/udivmodhi4.c | |
parent | 616e0db9364314bea5f88279469a18fc06450db3 (diff) | |
download | gcc-a9a2fddbf2a93b8427478954d4efe9e02080454f.zip gcc-a9a2fddbf2a93b8427478954d4efe9e02080454f.tar.gz gcc-a9a2fddbf2a93b8427478954d4efe9e02080454f.tar.bz2 |
udivmodsi4.c (__udivmodsi4): Rename to conform to coding standard.
* udivmodsi4.c (__udivmodsi4): Rename to conform to coding
standard.
* divmod.c: Update references to __udivmodsi4.
* udivmod.c: Ditto.
* udivhi3.c: New file.
* udivmodhi4.c: New file.
* config/pdp11/t-pdp11 (LIB2ADD): Add the new files.
From-SVN: r265277
Diffstat (limited to 'libgcc/udivmodhi4.c')
-rw-r--r-- | libgcc/udivmodhi4.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/libgcc/udivmodhi4.c b/libgcc/udivmodhi4.c new file mode 100644 index 0000000..551a135 --- /dev/null +++ b/libgcc/udivmodhi4.c @@ -0,0 +1,47 @@ +/* Copyright (C) 2000-2018 Free Software Foundation, Inc. + +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 3, or (at your option) any later +version. + +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. + +Under Section 7 of GPL version 3, you are granted additional +permissions described in the GCC Runtime Library Exception, version +3.1, as published by the Free Software Foundation. + +You should have received a copy of the GNU General Public License and +a copy of the GCC Runtime Library Exception along with this program; +see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +<http://www.gnu.org/licenses/>. */ + +unsigned short +__udivmodhi4(unsigned short num, unsigned short den, int modwanted) +{ + unsigned short bit = 1; + unsigned short 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; +} |