Blame view
arch/mips/math-emu/dp_scalb.c
1.45 KB
1da177e4c Linux-2.6.12-rc2 |
1 2 3 4 5 6 |
/* IEEE754 floating point arithmetic * double precision: common utilities */ /* * MIPS floating point support * Copyright (C) 1994-2000 Algorithmics Ltd. |
1da177e4c Linux-2.6.12-rc2 |
7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 |
* * ######################################################################## * * 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_scalb(ieee754dp x, int n) { COMPXDP; CLEARCX; EXPLODEXDP; switch (xc) { case IEEE754_CLASS_SNAN: return ieee754dp_nanxcpt(x, "scalb", x, n); case IEEE754_CLASS_QNAN: case IEEE754_CLASS_INF: case IEEE754_CLASS_ZERO: return x; case IEEE754_CLASS_DNORM: DPDNORMX; break; case IEEE754_CLASS_NORM: break; } DPNORMRET2(xs, xe + n, xm << 3, "scalb", x, n); } ieee754dp ieee754dp_ldexp(ieee754dp x, int n) { return ieee754dp_scalb(x, n); } |