diff options
author | Peter Tyser <ptyser@xes-inc.com> | 2010-04-12 22:28:04 -0500 |
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committer | Wolfgang Denk <wd@denx.de> | 2010-04-13 09:13:03 +0200 |
commit | ea0364f1bbfed1e3ea711147420875cf338fe77a (patch) | |
tree | 15c051bc4d2e94c1661c73e1b87c22c7beda7c24 /arch/nios2/lib/mult.c | |
parent | 89f39e177e7b0152aa1d3152baa25d986e36cdcf (diff) |
Move lib_$ARCH directories to arch/$ARCH/lib
Also move lib_$ARCH/config.mk to arch/$ARCH/config.mk
This change is intended to clean up the top-level directory structure
and more closely mimic Linux's directory organization.
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Diffstat (limited to 'arch/nios2/lib/mult.c')
-rw-r--r-- | arch/nios2/lib/mult.c | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/arch/nios2/lib/mult.c b/arch/nios2/lib/mult.c new file mode 100644 index 00000000000..ec8139ed5a6 --- /dev/null +++ b/arch/nios2/lib/mult.c @@ -0,0 +1,56 @@ +/* + * This file is part of GNU CC. + * + * GNU CC 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. + * + * GNU CC 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 GNU CC; see the file COPYING. If not, write + * to the Free Software Foundation, 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + */ + + +#include <common.h> + +#if !defined(CONFIG_SYS_NIOS_MULT_HW) && !defined(CONFIG_SYS_NIOS_MULT_MSTEP) + +#include "math.h" + +USItype __mulsi3 (USItype a, USItype b) +{ + USItype c = 0; + + while (a != 0) { + if (a & 1) + c += b; + a >>= 1; + b <<= 1; + } + + return c; +} + + +UHItype __mulhi3 (UHItype a, UHItype b) +{ + UHItype c = 0; + + while (a != 0) { + if (a & 1) + c += b; + a >>= 1; + b <<= 1; + } + + return c; +} + +#endif /*!defined(CONFIG_SYS_NIOS_MULT_HW) && !defined(CONFIG_SYS_NIOS_MULT_MSTEP) */ |