diff options
Diffstat (limited to 'arch/blackfin/lib/lshrdi3.c')
-rw-r--r-- | arch/blackfin/lib/lshrdi3.c | 69 |
1 files changed, 0 insertions, 69 deletions
diff --git a/arch/blackfin/lib/lshrdi3.c b/arch/blackfin/lib/lshrdi3.c deleted file mode 100644 index 85bdd85f18..0000000000 --- a/arch/blackfin/lib/lshrdi3.c +++ /dev/null @@ -1,69 +0,0 @@ -/* - * File: arch/blackfin/lib/lshrdi3.c - * Based on: - * Author: - * - * Created: - * Description: - * - * Rev: $Id: lshrdi3.c 2775 2007-02-21 13:58:44Z hennerich $ - * - * 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. - */ - -#define BITS_PER_UNIT 8 - -typedef int SItype __attribute__ ((mode(SI))); -typedef unsigned int USItype __attribute__ ((mode(SI))); -typedef int DItype __attribute__ ((mode(DI))); -typedef int word_type __attribute__ ((mode(__word__))); - -struct DIstruct { - SItype high, low; -}; - -typedef union { - struct DIstruct s; - DItype ll; -} DIunion; - -#ifdef CONFIG_ARITHMETIC_OPS_L1 -DItype __lshrdi3(DItype u, word_type b)__attribute__((l1_text)); -#endif - -DItype __lshrdi3(DItype u, word_type b) -{ - DIunion w; - word_type bm; - DIunion uu; - - if (b == 0) - return u; - - uu.ll = u; - - bm = (sizeof(SItype) * BITS_PER_UNIT) - b; - if (bm <= 0) { - w.s.high = 0; - w.s.low = (USItype) uu.s.high >> -bm; - } else { - USItype carries = (USItype) uu.s.high << bm; - w.s.high = (USItype) uu.s.high >> b; - w.s.low = ((USItype) uu.s.low >> b) | carries; - } - - return w.ll; -} |