diff options
Diffstat (limited to 'arch/mips/math-emu/ieee754dp.h')
| -rw-r--r-- | arch/mips/math-emu/ieee754dp.h | 17 |
1 files changed, 4 insertions, 13 deletions
diff --git a/arch/mips/math-emu/ieee754dp.h b/arch/mips/math-emu/ieee754dp.h index 9ba023004eb6..b7c43a99aa10 100644 --- a/arch/mips/math-emu/ieee754dp.h +++ b/arch/mips/math-emu/ieee754dp.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * IEEE754 floating point * double precision internal header file @@ -5,19 +6,6 @@ /* * MIPS floating point support * Copyright (C) 1994-2000 Algorithmics Ltd. - * - * This program is free software; you can distribute it and/or modify it - * under the terms of the GNU General Public License (Version 2) as - * published by the Free Software Foundation. - * - * This program is distributed in the hope 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, write to the Free Software Foundation, Inc., - * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. */ #include <linux/compiler.h> @@ -55,6 +43,9 @@ static inline int ieee754dp_finite(union ieee754dp x) #define XDPSRS1(v) \ (((v) >> 1) | ((v) & 1)) +/* 32bit * 32bit => 64bit unsigned integer multiplication */ +#define DPXMULT(x, y) ((u64)(x) * (u64)y) + /* convert denormal to normalized with extended exponent */ #define DPDNORMx(m,e) \ while ((m >> DP_FBITS) == 0) { m <<= 1; e--; } |