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Diffstat (limited to 'arch/blackfin/lib/muldi3.c')
| -rw-r--r-- | arch/blackfin/lib/muldi3.c | 99 |
1 files changed, 0 insertions, 99 deletions
diff --git a/arch/blackfin/lib/muldi3.c b/arch/blackfin/lib/muldi3.c deleted file mode 100644 index 303d0c6a6dba..000000000000 --- a/arch/blackfin/lib/muldi3.c +++ /dev/null @@ -1,99 +0,0 @@ -/* - * File: arch/blackfin/lib/muldi3.c - * Based on: - * Author: - * - * Created: - * Description: - * - * Modified: - * Copyright 2004-2006 Analog Devices Inc. - * - * Bugs: Enter bugs at http://blackfin.uclinux.org/ - * - * This program 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 of the License, or - * (at your option) any later version. - * - * This program 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 this program; if not, see the file COPYING, or write - * to the Free Software Foundation, Inc., - * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#ifndef SI_TYPE_SIZE -#define SI_TYPE_SIZE 32 -#endif -#define __ll_b (1L << (SI_TYPE_SIZE / 2)) -#define __ll_lowpart(t) ((usitype) (t) % __ll_b) -#define __ll_highpart(t) ((usitype) (t) / __ll_b) -#define BITS_PER_UNIT 8 - -#if !defined(umul_ppmm) -#define umul_ppmm(w1, w0, u, v) \ - do { \ - usitype __x0, __x1, __x2, __x3; \ - usitype __ul, __vl, __uh, __vh; \ - \ - __ul = __ll_lowpart (u); \ - __uh = __ll_highpart (u); \ - __vl = __ll_lowpart (v); \ - __vh = __ll_highpart (v); \ - \ - __x0 = (usitype) __ul * __vl; \ - __x1 = (usitype) __ul * __vh; \ - __x2 = (usitype) __uh * __vl; \ - __x3 = (usitype) __uh * __vh; \ - \ - __x1 += __ll_highpart (__x0);/* this can't give carry */ \ - __x1 += __x2; /* but this indeed can */ \ - if (__x1 < __x2) /* did we get it? */ \ - __x3 += __ll_b; /* yes, add it in the proper pos. */ \ - \ - (w1) = __x3 + __ll_highpart (__x1); \ - (w0) = __ll_lowpart (__x1) * __ll_b + __ll_lowpart (__x0); \ - } while (0) -#endif - -#if !defined(__umulsidi3) -#define __umulsidi3(u, v) \ - ({diunion __w; \ - umul_ppmm (__w.s.high, __w.s.low, u, v); \ - __w.ll; }) -#endif - -typedef unsigned int usitype __attribute__ ((mode(SI))); -typedef int sitype __attribute__ ((mode(SI))); -typedef int ditype __attribute__ ((mode(DI))); -typedef int word_type __attribute__ ((mode(__word__))); - -struct distruct { - sitype low, high; -}; -typedef union { - struct distruct s; - ditype ll; -} diunion; - -#ifdef CONFIG_ARITHMETIC_OPS_L1 -ditype __muldi3(ditype u, ditype v)__attribute__((l1_text)); -#endif - -ditype __muldi3(ditype u, ditype v) -{ - diunion w; - diunion uu, vv; - - uu.ll = u, vv.ll = v; - w.ll = __umulsidi3(uu.s.low, vv.s.low); - w.s.high += ((usitype) uu.s.low * (usitype) vv.s.high - + (usitype) uu.s.high * (usitype) vv.s.low); - - return w.ll; -} |