diff options
Diffstat (limited to 'arch/mips/math-emu/dp_flong.c')
| -rw-r--r-- | arch/mips/math-emu/dp_flong.c | 40 |
1 files changed, 8 insertions, 32 deletions
diff --git a/arch/mips/math-emu/dp_flong.c b/arch/mips/math-emu/dp_flong.c index 14fc01ec742d..681ee00c93a1 100644 --- a/arch/mips/math-emu/dp_flong.c +++ b/arch/mips/math-emu/dp_flong.c @@ -1,38 +1,21 @@ +// SPDX-License-Identifier: GPL-2.0-only /* IEEE754 floating point arithmetic * double precision: common utilities */ /* * 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., - * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA. - * - * ######################################################################## */ - #include "ieee754dp.h" -ieee754dp ieee754dp_flong(s64 x) +union ieee754dp ieee754dp_flong(s64 x) { u64 xm; int xe; int xs; - CLEARCX; + ieee754_clearcx(); if (x == 0) return ieee754dp_zero(0); @@ -52,26 +35,19 @@ ieee754dp ieee754dp_flong(s64 x) } /* normalize */ - xe = DP_MBITS + 3; - if (xm >> (DP_MBITS + 1 + 3)) { + xe = DP_FBITS + 3; + if (xm >> (DP_FBITS + 1 + 3)) { /* shunt out overflow bits */ - while (xm >> (DP_MBITS + 1 + 3)) { + while (xm >> (DP_FBITS + 1 + 3)) { XDPSRSX1(); } } else { /* normalize in grs extended double precision */ - while ((xm >> (DP_MBITS + 3)) == 0) { + while ((xm >> (DP_FBITS + 3)) == 0) { xm <<= 1; xe--; } } - DPNORMRET1(xs, xe, xm, "dp_flong", x); -} -ieee754dp ieee754dp_fulong(u64 u) -{ - if ((s64) u < 0) - return ieee754dp_add(ieee754dp_1e63(), - ieee754dp_flong(u & ~(1ULL << 63))); - return ieee754dp_flong(u); + return ieee754dp_format(xs, xe, xm); } |