diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/mips/math-emu/dp_scalb.c |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'arch/mips/math-emu/dp_scalb.c')
-rw-r--r-- | arch/mips/math-emu/dp_scalb.c | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/arch/mips/math-emu/dp_scalb.c b/arch/mips/math-emu/dp_scalb.c new file mode 100644 index 000000000000..b84e6338330e --- /dev/null +++ b/arch/mips/math-emu/dp_scalb.c | |||
@@ -0,0 +1,58 @@ | |||
1 | /* IEEE754 floating point arithmetic | ||
2 | * double precision: common utilities | ||
3 | */ | ||
4 | /* | ||
5 | * MIPS floating point support | ||
6 | * Copyright (C) 1994-2000 Algorithmics Ltd. | ||
7 | * http://www.algor.co.uk | ||
8 | * | ||
9 | * ######################################################################## | ||
10 | * | ||
11 | * This program is free software; you can distribute it and/or modify it | ||
12 | * under the terms of the GNU General Public License (Version 2) as | ||
13 | * published by the Free Software Foundation. | ||
14 | * | ||
15 | * This program is distributed in the hope it will be useful, but WITHOUT | ||
16 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
17 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | ||
18 | * for more details. | ||
19 | * | ||
20 | * You should have received a copy of the GNU General Public License along | ||
21 | * with this program; if not, write to the Free Software Foundation, Inc., | ||
22 | * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA. | ||
23 | * | ||
24 | * ######################################################################## | ||
25 | */ | ||
26 | |||
27 | |||
28 | #include "ieee754dp.h" | ||
29 | |||
30 | ieee754dp ieee754dp_scalb(ieee754dp x, int n) | ||
31 | { | ||
32 | COMPXDP; | ||
33 | |||
34 | CLEARCX; | ||
35 | |||
36 | EXPLODEXDP; | ||
37 | |||
38 | switch (xc) { | ||
39 | case IEEE754_CLASS_SNAN: | ||
40 | return ieee754dp_nanxcpt(x, "scalb", x, n); | ||
41 | case IEEE754_CLASS_QNAN: | ||
42 | case IEEE754_CLASS_INF: | ||
43 | case IEEE754_CLASS_ZERO: | ||
44 | return x; | ||
45 | case IEEE754_CLASS_DNORM: | ||
46 | DPDNORMX; | ||
47 | break; | ||
48 | case IEEE754_CLASS_NORM: | ||
49 | break; | ||
50 | } | ||
51 | DPNORMRET2(xs, xe + n, xm << 3, "scalb", x, n); | ||
52 | } | ||
53 | |||
54 | |||
55 | ieee754dp ieee754dp_ldexp(ieee754dp x, int n) | ||
56 | { | ||
57 | return ieee754dp_scalb(x, n); | ||
58 | } | ||