projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| 84368281 | 1 | /* Compute remainder and a congruent to the quotient. m68k fpu version |
| 568035b7 | 2 | Copyright (C) 1997-2013 Free Software Foundation, Inc. |
| 84368281 UD |
3 | This file is part of the GNU C Library. |
| 4 | Contributed by Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> | |
| 5 | ||
| 6 | The GNU C Library is free software; you can redistribute it and/or | |
| 3214b89b AJ |
7 | modify it under the terms of the GNU Lesser General Public |
| 8 | License as published by the Free Software Foundation; either | |
| 9 | version 2.1 of the License, or (at your option) any later version. | |
| 84368281 UD |
10 | |
| 11 | The GNU C Library is distributed in the hope that it will be useful, | |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 3214b89b | 14 | Lesser General Public License for more details. |
| 84368281 | 15 | |
| 3214b89b | 16 | You should have received a copy of the GNU Lesser General Public |
| ab84e3ff PE |
17 | License along with the GNU C Library. If not, see |
| 18 | <http://www.gnu.org/licenses/>. */ | |
| 84368281 | 19 | |
| 84368281 UD |
20 | #include <math.h> |
| 21 | ||
| 22 | #ifndef SUFF | |
| 23 | #define SUFF | |
| 24 | #endif | |
| 25 | #ifndef float_type | |
| 26 | #define float_type double | |
| 27 | #endif | |
| 28 | ||
| 29 | #define CONCATX(a,b) __CONCAT(a,b) | |
| 30 | #define s(name) CONCATX(name,SUFF) | |
| 31 | ||
| 32 | float_type | |
| 33 | s(__remquo) (float_type x, float_type y, int *quo) | |
| 34 | { | |
| 35 | float_type result; | |
| 36 | int cquo, fpsr; | |
| 37 | ||
| 84368281 UD |
38 | __asm ("frem%.x %2,%0\n\tfmove%.l %/fpsr,%1" |
| 39 | : "=f" (result), "=dm" (fpsr) : "f" (y), "0" (x)); | |
| 40 | cquo = (fpsr >> 16) & 0x7f; | |
| 84368281 UD |
41 | if (fpsr & (1 << 23)) |
| 42 | cquo = -cquo; | |
| 43 | *quo = cquo; | |
| 44 | return result; | |
| 45 | } | |
| 615f651b | 46 | weak_alias (s(__remquo), s(remquo)) |