2 * Copyright Droids Corporation, Microb Technology, Eirbot (2005)
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 * Revision : $Id: f16_mul.c,v 1.5.4.2 2008-05-10 15:06:26 zer0 Exp $
24 #include <s16_to_f16.h>
27 f16 f16_mul(f16 a, f16 b)
29 return s16_to_f16( ( ((int16_t)(a.f16_integer) * (int16_t)(b.f16_integer)) << 8 ) +
30 (int16_t)(a.f16_integer) * (int16_t)(b.f16_decimal) +
31 (int16_t)(a.f16_decimal) * (int16_t)(b.f16_integer) +
32 ( ((int16_t)(a.f16_decimal) * (int16_t)(b.f16_decimal)) >> 8 ) );