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[src/trunk]: src/sys/arch SH5 floating point support, based on sh3.
details: https://anonhg.NetBSD.org/src/rev/c082c47d950d
branches: trunk
changeset: 533854:c082c47d950d
user: scw <scw%NetBSD.org@localhost>
date: Wed Jul 10 10:38:22 2002 +0000
description:
SH5 floating point support, based on sh3.
diffstat:
sys/arch/evbsh5/include/Makefile | 6 +-
sys/arch/evbsh5/include/float.h | 3 +
sys/arch/evbsh5/include/ieee.h | 3 +
sys/arch/evbsh5/include/ieeefp.h | 3 +
sys/arch/evbsh5/include/math.h | 3 +
sys/arch/sh5/include/Makefile | 6 +-
sys/arch/sh5/include/float.h | 80 +++++++++++++++++++++++
sys/arch/sh5/include/ieee.h | 135 +++++++++++++++++++++++++++++++++++++++
sys/arch/sh5/include/ieeefp.h | 26 +++++++
sys/arch/sh5/include/math.h | 3 +
10 files changed, 264 insertions(+), 4 deletions(-)
diffs (truncated from 332 to 300 lines):
diff -r d2799ba86f77 -r c082c47d950d sys/arch/evbsh5/include/Makefile
--- a/sys/arch/evbsh5/include/Makefile Wed Jul 10 10:35:50 2002 +0000
+++ b/sys/arch/evbsh5/include/Makefile Wed Jul 10 10:38:22 2002 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: Makefile,v 1.2 2002/07/10 10:24:17 scw Exp $
+# $NetBSD: Makefile,v 1.3 2002/07/10 10:38:24 scw Exp $
KDIR= /sys/arch/evbsh5/include
INCSDIR= /usr/include/evbsh5
@@ -8,9 +8,11 @@
cdefs.h conreg.h cpu.h \
disklabel.h \
elf_machdep.h endian.h endian_machdep.h \
- frame.h \
+ float.h frame.h \
+ ieee.h ieeefp.h \
int_const.h int_fmtio.h int_limits.h int_mwgwtypes.h int_types.h \
limits.h lock.h \
+ math.h \
param.h pcb.h pmap.h proc.h profile.h ptrace.h \
reg.h \
setjmp.h signal.h stdarg.h \
diff -r d2799ba86f77 -r c082c47d950d sys/arch/evbsh5/include/float.h
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/arch/evbsh5/include/float.h Wed Jul 10 10:38:22 2002 +0000
@@ -0,0 +1,3 @@
+/* $NetBSD: float.h,v 1.1 2002/07/10 10:38:24 scw Exp $ */
+
+#include <sh5/float.h>
diff -r d2799ba86f77 -r c082c47d950d sys/arch/evbsh5/include/ieee.h
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/arch/evbsh5/include/ieee.h Wed Jul 10 10:38:22 2002 +0000
@@ -0,0 +1,3 @@
+/* $NetBSD: ieee.h,v 1.1 2002/07/10 10:38:25 scw Exp $ */
+
+#include <sh5/ieee.h>
diff -r d2799ba86f77 -r c082c47d950d sys/arch/evbsh5/include/ieeefp.h
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/arch/evbsh5/include/ieeefp.h Wed Jul 10 10:38:22 2002 +0000
@@ -0,0 +1,3 @@
+/* $NetBSD: ieeefp.h,v 1.1 2002/07/10 10:38:25 scw Exp $ */
+
+#include <sh5/ieeefp.h>
diff -r d2799ba86f77 -r c082c47d950d sys/arch/evbsh5/include/math.h
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/arch/evbsh5/include/math.h Wed Jul 10 10:38:22 2002 +0000
@@ -0,0 +1,3 @@
+/* $NetBSD: math.h,v 1.1 2002/07/10 10:38:26 scw Exp $ */
+
+#include <sh5/math.h>
diff -r d2799ba86f77 -r c082c47d950d sys/arch/sh5/include/Makefile
--- a/sys/arch/sh5/include/Makefile Wed Jul 10 10:35:50 2002 +0000
+++ b/sys/arch/sh5/include/Makefile Wed Jul 10 10:38:22 2002 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: Makefile,v 1.2 2002/07/10 10:24:16 scw Exp $
+# $NetBSD: Makefile,v 1.3 2002/07/10 10:38:22 scw Exp $
KDIR= /sys/arch/sh5/include
INCSDIR= /usr/include/sh5
@@ -8,9 +8,11 @@
cdefs.h conreg.h cpu.h cputypes.h \
disklabel.h \
elf_machdep.h endian.h endian_machdep.h \
- frame.h \
+ float.h frame.h \
+ ieee.h ieeefp.h \
int_const.h int_fmtio.h int_limits.h int_mwgwtypes.h int_types.h \
limits.h lock.h \
+ math.h \
param.h pcb.h pmap.h proc.h profile.h ptrace.h \
reg.h \
setjmp.h signal.h stdarg.h \
diff -r d2799ba86f77 -r c082c47d950d sys/arch/sh5/include/float.h
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/arch/sh5/include/float.h Wed Jul 10 10:38:22 2002 +0000
@@ -0,0 +1,80 @@
+/* $NetBSD: float.h,v 1.1 2002/07/10 10:38:23 scw Exp $ */
+
+/*
+ * Copyright (c) 1989 Regents of the University of California.
+ * All rights reserved.
+ *
+ * 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.
+ *
+ * @(#)float.h 7.1 (Berkeley) 5/8/90
+ */
+
+#ifndef _SH3_FLOAT_H_
+#define _SH3_FLOAT_H_
+
+#include <sys/cdefs.h>
+
+__BEGIN_DECLS
+extern int __flt_rounds();
+__END_DECLS
+
+#define FLT_RADIX 2 /* b */
+#define FLT_ROUNDS __flt_rounds()
+
+#define FLT_MANT_DIG 24 /* p */
+#define FLT_EPSILON 1.19209290E-07F /* b**(1-p) */
+#define FLT_DIG 6 /* floor((p-1)*log10(b))+(b == 10) */
+#define FLT_MIN_EXP (-125) /* emin */
+#define FLT_MIN 1.17549435E-38F /* b**(emin-1) */
+#define FLT_MIN_10_EXP (-37) /* ceil(log10(b**(emin-1))) */
+#define FLT_MAX_EXP 128 /* emax */
+#define FLT_MAX 3.40282347E+38F /* (1-b**(-p))*b**emax */
+#define FLT_MAX_10_EXP 38 /* floor(log10((1-b**(-p))*b**emax)) */
+
+#define DBL_MANT_DIG 53
+#define DBL_EPSILON 2.2204460492503131E-16
+#define DBL_DIG 15
+#define DBL_MIN_EXP (-1021)
+#define DBL_MIN 2.2250738585072014E-308
+#define DBL_MIN_10_EXP (-307)
+#define DBL_MAX_EXP 1024
+#define DBL_MAX 1.7976931348623157E+308
+#define DBL_MAX_10_EXP 308
+
+#define LDBL_MANT_DIG DBL_MANT_DIG
+#define LDBL_EPSILON DBL_EPSILON
+#define LDBL_DIG DBL_DIG
+#define LDBL_MIN_EXP DBL_MIN_EXP
+#define LDBL_MIN DBL_MIN
+#define LDBL_MIN_10_EXP DBL_MIN_10_EXP
+#define LDBL_MAX_EXP DBL_MAX_EXP
+#define LDBL_MAX DBL_MAX
+#define LDBL_MAX_10_EXP DBL_MAX_10_EXP
+
+#endif /* !_SH3_FLOAT_H_ */
diff -r d2799ba86f77 -r c082c47d950d sys/arch/sh5/include/ieee.h
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/arch/sh5/include/ieee.h Wed Jul 10 10:38:22 2002 +0000
@@ -0,0 +1,135 @@
+/* $NetBSD: ieee.h,v 1.1 2002/07/10 10:38:23 scw 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.
+ *
+ * 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, Lawrence Berkeley Laboratory.
+ *
+ * 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.
+ *
+ * @(#)ieee.h 8.1 (Berkeley) 6/11/93
+ */
+
+/*
+ * ieee.h defines the machine-dependent layout of the machine's IEEE
+ * floating point. It does *not* define (yet?) any of the rounding
+ * mode bits, exceptions, and so forth.
+ */
+
+/*
+ * Define the number of bits in each fraction and exponent.
+ *
+ * k k+1
+ * Note that 1.0 x 2 == 0.1 x 2 and that denorms are represented
+ *
+ * (-exp_bias+1)
+ * as fractions that look like 0.fffff x 2 . This means that
+ *
+ * -126
+ * the number 0.10000 x 2 , for instance, is the same as the normalized
+ *
+ * -127 -128
+ * float 1.0 x 2 . Thus, to represent 2 , we need one leading zero
+ *
+ * -129
+ * in the fraction; to represent 2 , we need two, and so on. This
+ *
+ * (-exp_bias-fracbits+1)
+ * implies that the smallest denormalized number is 2
+ *
+ * for whichever format we are talking about: for single precision, for
+ *
+ * -126 -149
+ * instance, we get .00000000000000000000001 x 2 , or 1.0 x 2 , and
+ *
+ * -149 == -127 - 23 + 1.
+ */
+#define SNG_EXPBITS 8
+#define SNG_FRACBITS 23
+
+#define DBL_EXPBITS 11
+#define DBL_FRACBITS 52
+
+#ifndef _BYTE_ORDER
+#error Define _BYTE_ORDER!
+#endif
+
+#if _BYTE_ORDER == BIG_ENDIAN
+struct ieee_single {
+ u_int sng_sign:1;
+ u_int sng_exp:8;
+ u_int sng_frac:23;
+};
+
+struct ieee_double {
+ u_int dbl_sign:1;
+ u_int dbl_exp:11;
+ u_int dbl_frach:20;
+ u_int dbl_fracl;
+};
+#endif
+#if _BYTE_ORDER == LITTLE_ENDIAN
+struct ieee_single {
+ u_int sng_frac:23;
+ u_int sng_exp:8;
+ u_int sng_sign:1;
+};
+
+struct ieee_double {
+ u_int dbl_fracl;
+ u_int dbl_frach:20;
+ u_int dbl_exp:11;
+ u_int dbl_sign:1;
+};
+#endif
+/*
+ * Floats whose exponent is in [1..INFNAN) (of whatever type) are
+ * `normal'. Floats whose exponent is INFNAN are either Inf or NaN.
+ * Floats whose exponent is zero are either zero (iff all fraction
+ * bits are zero) or subnormal values.
+ *
+ * A NaN is a `signalling NaN' if its QUIETNAN bit is clear in its
+ * high fraction; if the bit is set, it is a `quiet NaN'.
+ */
+#define SNG_EXP_INFNAN 255
+#define DBL_EXP_INFNAN 2047
+
+/*
+ * Exponent biases.
+ */
+#define SNG_EXP_BIAS 127
+#define DBL_EXP_BIAS 1023
diff -r d2799ba86f77 -r c082c47d950d sys/arch/sh5/include/ieeefp.h
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/arch/sh5/include/ieeefp.h Wed Jul 10 10:38:22 2002 +0000
@@ -0,0 +1,26 @@
+/* $NetBSD: ieeefp.h,v 1.1 2002/07/10 10:38:23 scw Exp $ */
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