diff options
| -rw-r--r-- | lib/libc/arch/sparc64/gen/frexp.c | 75 | ||||
| -rw-r--r-- | lib/libc/arch/sparc64/gen/infinity.c | 8 | ||||
| -rw-r--r-- | lib/libc/arch/sparc64/gen/isinf.c | 50 | ||||
| -rw-r--r-- | lib/libc/arch/sparc64/gen/isnan.c | 50 |
4 files changed, 183 insertions, 0 deletions
diff --git a/lib/libc/arch/sparc64/gen/frexp.c b/lib/libc/arch/sparc64/gen/frexp.c new file mode 100644 index 00000000000..adf8aecd74e --- /dev/null +++ b/lib/libc/arch/sparc64/gen/frexp.c @@ -0,0 +1,75 @@ +/* $OpenBSD: frexp.c,v 1.1 2001/08/29 01:41:29 art Exp $ */ +/* + * Copyright (c) 1992, 1993 + * The Regents of the University of California. All rights reserved. + * + * This software was developed by the Computer Systems Engineering group + * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and + * contributed to Berkeley. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <sys/cdefs.h> + +#include <sys/types.h> +#include <machine/ieee.h> + +/* + * Split the given value into a fraction in the range [0.5, 1.0) and + * an exponent, such that frac * (2^exp) == value. If value is 0, + * return 0. + */ +double +frexp(value, eptr) + double value; + int *eptr; +{ + union { + double v; + struct ieee_double s; + } u; + + if (value) { + /* + * Fractions in [0.5..1.0) have an exponent of 2^-1. + * Leave Inf and NaN alone, however. + * WHAT ABOUT DENORMS? + */ + u.v = value; + if (u.s.dbl_exp != DBL_EXP_INFNAN) { + *eptr = u.s.dbl_exp - (DBL_EXP_BIAS - 1); + u.s.dbl_exp = DBL_EXP_BIAS - 1; + } + return (u.v); + } else { + *eptr = 0; + return ((double)0); + } +} diff --git a/lib/libc/arch/sparc64/gen/infinity.c b/lib/libc/arch/sparc64/gen/infinity.c new file mode 100644 index 00000000000..04eea83390a --- /dev/null +++ b/lib/libc/arch/sparc64/gen/infinity.c @@ -0,0 +1,8 @@ +/* $OpenBSD: infinity.c,v 1.1 2001/08/29 01:41:29 art Exp $ */ + +/* infinity.c */ + +#include <math.h> + +/* bytes for +Infinity on a sparc */ +char __infinity[] = { 0x7f, (char)0xf0, 0, 0, 0, 0, 0, 0 }; diff --git a/lib/libc/arch/sparc64/gen/isinf.c b/lib/libc/arch/sparc64/gen/isinf.c new file mode 100644 index 00000000000..2bdf5bda0fa --- /dev/null +++ b/lib/libc/arch/sparc64/gen/isinf.c @@ -0,0 +1,50 @@ +/* $OpenBSD: isinf.c,v 1.1 2001/08/29 01:41:29 art Exp $ */ +/* + * Copyright (c) 1992, 1993 + * The Regents of the University of California. All rights reserved. + * + * This software was developed by the Computer Systems Engineering group + * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and + * contributed to Berkeley. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <sys/types.h> +#include <machine/ieee.h> + +int +isinf(d) + double d; +{ + register struct ieee_double *p = (struct ieee_double *)&d; + + return (p->dbl_exp == DBL_EXP_INFNAN && + p->dbl_frach == 0 && p->dbl_fracl == 0); +} diff --git a/lib/libc/arch/sparc64/gen/isnan.c b/lib/libc/arch/sparc64/gen/isnan.c new file mode 100644 index 00000000000..d793b1b7008 --- /dev/null +++ b/lib/libc/arch/sparc64/gen/isnan.c @@ -0,0 +1,50 @@ +/* $OpenBSD: isnan.c,v 1.1 2001/08/29 01:41:29 art Exp $ */ +/* + * Copyright (c) 1992, 1993 + * The Regents of the University of California. All rights reserved. + * + * This software was developed by the Computer Systems Engineering group + * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and + * contributed to Berkeley. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <sys/types.h> +#include <machine/ieee.h> + +int +isnan(d) + double d; +{ + register struct ieee_double *p = (struct ieee_double *)&d; + + return (p->dbl_exp == DBL_EXP_INFNAN && + (p->dbl_frach != 0 || p->dbl_fracl != 0)); +} |