From 73588a7223bec40d652fd4c75f1cb4772c5d2612 Mon Sep 17 00:00:00 2001 From: Andreas Schwab Date: Mon, 10 Feb 2014 20:05:01 +0100 Subject: Move m68k from ports to libc --- sysdeps/m68k/m680x0/fpu/s_llrintl.c | 64 +++++++++++++++++++++++++++++++++++++ 1 file changed, 64 insertions(+) create mode 100644 sysdeps/m68k/m680x0/fpu/s_llrintl.c (limited to 'sysdeps/m68k/m680x0/fpu/s_llrintl.c') diff --git a/sysdeps/m68k/m680x0/fpu/s_llrintl.c b/sysdeps/m68k/m680x0/fpu/s_llrintl.c new file mode 100644 index 0000000000..9bd9bf40e0 --- /dev/null +++ b/sysdeps/m68k/m680x0/fpu/s_llrintl.c @@ -0,0 +1,64 @@ +/* Round argument to nearest integral value according to current rounding + direction. + Copyright (C) 1997-2014 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Andreas Schwab + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library. If not, see + . */ + +#include +#include +#include "mathimpl.h" + +long long int +__llrintl (long double x) +{ + int32_t e, s; + u_int32_t h, l; + long long int result; + + x = __m81_u(__rintl) (x); + + GET_LDOUBLE_WORDS (e, h, l, x); + + s = e; + e = (e & 0x7fff) - 0x3fff; + if (e < 0) + return 0; + + if (e < 63) + { + if (e > 31) + { + l >>= 63 - e; + l |= h << (e - 31); + h >>= 63 - e; + result = ((long long int) h << 32) | l; + } + else + result = h >> (31 - e); + if (s & 0x8000) + result = -result; + } + else + /* The number is too large or not finite. The standard leaves it + undefined what to return when the number is too large to fit in a + `long long int'. */ + result = -1LL; + + return result; +} + +weak_alias (__llrintl, llrintl) -- cgit v1.2.3