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[src/trunk]: src/sys/arch fenv.h for sh
details: https://anonhg.NetBSD.org/src/rev/c8d985b6a96e
branches: trunk
changeset: 817555:c8d985b6a96e
user: christos <christos%NetBSD.org@localhost>
date: Thu Aug 25 12:14:10 2016 +0000
description:
fenv.h for sh
diffstat:
sys/arch/dreamcast/include/Makefile | 4 +-
sys/arch/dreamcast/include/fenv.h | 3 +
sys/arch/hpcsh/include/Makefile | 4 +-
sys/arch/hpcsh/include/fenv.h | 3 +
sys/arch/mmeye/include/Makefile | 4 +-
sys/arch/mmeye/include/fenv.h | 3 +
sys/arch/sh3/include/Makefile | 4 +-
sys/arch/sh3/include/fenv.h | 292 ++++++++++++++++++++++++++++++++++++
sys/arch/sh3/include/fpreg.h | 48 +++++
9 files changed, 357 insertions(+), 8 deletions(-)
diffs (truncated from 441 to 300 lines):
diff -r 79f2f68d92e7 -r c8d985b6a96e sys/arch/dreamcast/include/Makefile
--- a/sys/arch/dreamcast/include/Makefile Thu Aug 25 12:12:59 2016 +0000
+++ b/sys/arch/dreamcast/include/Makefile Thu Aug 25 12:14:10 2016 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: Makefile,v 1.18 2011/07/19 15:52:30 dyoung Exp $
+# $NetBSD: Makefile,v 1.19 2016/08/25 12:14:10 christos Exp $
INCSDIR= /usr/include/dreamcast
@@ -7,7 +7,7 @@
cdefs.h coff_machdep.h cpu.h cputypes.h \
disklabel.h \
elf_machdep.h endian.h endian_machdep.h \
- float.h frame.h \
+ fenv.h float.h frame.h \
ieee.h ieeefp.h \
int_const.h int_fmtio.h int_limits.h int_mwgwtypes.h int_types.h \
intr.h \
diff -r 79f2f68d92e7 -r c8d985b6a96e sys/arch/dreamcast/include/fenv.h
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/arch/dreamcast/include/fenv.h Thu Aug 25 12:14:10 2016 +0000
@@ -0,0 +1,3 @@
+/* $NetBSD: fenv.h,v 1.1 2016/08/25 12:14:10 christos Exp $ */
+
+#include <sh3/fenv.h>
diff -r 79f2f68d92e7 -r c8d985b6a96e sys/arch/hpcsh/include/Makefile
--- a/sys/arch/hpcsh/include/Makefile Thu Aug 25 12:12:59 2016 +0000
+++ b/sys/arch/hpcsh/include/Makefile Thu Aug 25 12:14:10 2016 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: Makefile,v 1.19 2011/07/19 15:30:53 dyoung Exp $
+# $NetBSD: Makefile,v 1.20 2016/08/25 12:14:10 christos Exp $
INCSDIR= /usr/include/hpcsh
@@ -7,7 +7,7 @@
cdefs.h coff_machdep.h cpu.h cputypes.h \
disklabel.h \
elf_machdep.h endian.h endian_machdep.h \
- float.h frame.h \
+ fenv.h float.h frame.h \
ieee.h ieeefp.h \
int_const.h int_fmtio.h int_limits.h int_mwgwtypes.h int_types.h \
intr.h \
diff -r 79f2f68d92e7 -r c8d985b6a96e sys/arch/hpcsh/include/fenv.h
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/arch/hpcsh/include/fenv.h Thu Aug 25 12:14:10 2016 +0000
@@ -0,0 +1,3 @@
+/* $NetBSD: fenv.h,v 1.1 2016/08/25 12:14:10 christos Exp $ */
+
+#include <sh3/fenv.h>
diff -r 79f2f68d92e7 -r c8d985b6a96e sys/arch/mmeye/include/Makefile
--- a/sys/arch/mmeye/include/Makefile Thu Aug 25 12:12:59 2016 +0000
+++ b/sys/arch/mmeye/include/Makefile Thu Aug 25 12:14:10 2016 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: Makefile,v 1.25 2011/07/19 15:17:20 dyoung Exp $
+# $NetBSD: Makefile,v 1.26 2016/08/25 12:14:10 christos Exp $
INCSDIR= /usr/include/mmeye
@@ -7,7 +7,7 @@
cdefs.h coff_machdep.h cpu.h cputypes.h \
disklabel.h \
elf_machdep.h endian.h endian_machdep.h \
- float.h frame.h \
+ fenv.h float.h frame.h \
ieee.h ieeefp.h \
int_const.h int_fmtio.h int_limits.h int_mwgwtypes.h int_types.h \
intr.h \
diff -r 79f2f68d92e7 -r c8d985b6a96e sys/arch/mmeye/include/fenv.h
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/arch/mmeye/include/fenv.h Thu Aug 25 12:14:10 2016 +0000
@@ -0,0 +1,3 @@
+/* $NetBSD: fenv.h,v 1.1 2016/08/25 12:14:10 christos Exp $ */
+
+#include <sh3/fenv.h>
diff -r 79f2f68d92e7 -r c8d985b6a96e sys/arch/sh3/include/Makefile
--- a/sys/arch/sh3/include/Makefile Thu Aug 25 12:12:59 2016 +0000
+++ b/sys/arch/sh3/include/Makefile Thu Aug 25 12:14:10 2016 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: Makefile,v 1.26 2011/07/17 23:52:12 dyoung Exp $
+# $NetBSD: Makefile,v 1.27 2016/08/25 12:14:10 christos Exp $
INCSDIR= /usr/include/sh3
@@ -7,7 +7,7 @@
cdefs.h coff_machdep.h cpu.h cputypes.h \
disklabel.h \
elf_machdep.h endian.h endian_machdep.h \
- float.h frame.h \
+ float.h fenv.h fpreg.h frame.h \
ieee.h ieeefp.h \
int_const.h int_fmtio.h int_limits.h int_mwgwtypes.h int_types.h \
intr.h \
diff -r 79f2f68d92e7 -r c8d985b6a96e sys/arch/sh3/include/fenv.h
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/arch/sh3/include/fenv.h Thu Aug 25 12:14:10 2016 +0000
@@ -0,0 +1,292 @@
+/* $NetBSD: fenv.h,v 1.1 2016/08/25 12:14:10 christos Exp $ */
+
+/*-
+ * Copyright (c) 2016 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Christos Zoulas.
+ *
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
+ */
+
+#ifndef _SH3_FENV_H_
+#define _SH3_FENV_H_
+
+#include <sys/stdint.h>
+#include <sh3/float.h>
+#include <sh3/fpreg.h>
+
+#ifndef __fenv_static
+#define __fenv_static static
+#endif
+
+/* Exception bits, from FPSCR */
+#define FE_INEXACT ((uint32_t)FPSCR_EXCEPTION_INEXACT >> 5)
+#define FE_DIVBYZERO ((uint32_t)FPSCR_EXCEPTION_ZERODIV >> 5)
+#define FE_UNDERFLOW ((uint32_t)FPSCR_EXCEPTION_UNDERFLOW >> 5)
+#define FE_OVERFLOW ((uint32_t)FPSCR_EXCEPTION_OVERFLOW >> 5)
+#define FE_INVALID ((uint32_t)FPSCR_EXCEPTION_INVALID >> 5)
+
+#define FE_ALL_EXCEPT \
+ (FE_INEXACT | FE_DIVBYZERO | FE_UNDERFLOW | FE_OVERFLOW | FE_INVALID)
+
+/* Rounding modes, from FPSCR */
+#define FE_TONEAREST FPSCR_ROUND_NEAREST
+#define FE_TOWARDZERO FPSCR_ROUND_ZERO
+/* FE_DOWNWARD */
+/* FE_UPWARD */
+
+#define _ROUND_MASK \
+ (FE_TONEAREST | FE_TOWARDZERO)
+
+typedef uint32_t fexcept_t;
+
+typedef struct {
+ uint32_t __fpscr;
+} fenv_t;
+
+#define FE_DFL_ENV ((fenv_t *) -1)
+
+#define __get_fpscr(__fpscr) \
+ __asm__ __volatile__ ("sts fpscr,%0" : "=r" (__fpscr))
+#define __set_fpscr(__fpscr) \
+ __asm__ __volatile__ ("lds %0,fpscr" : : "r" (__fpscr))
+
+__BEGIN_DECLS
+
+__fenv_static inline int
+feclearexcept(int __excepts)
+{
+ fexcept_t __fpscr;
+
+ __excepts &= FE_ALL_EXCEPT;
+
+ __get_fpscr(__fpscr);
+ __fpscr &= ~__excepts;
+ __set_fpscr(__fpscr);
+
+ return 0;
+}
+
+__fenv_static inline int
+fegetexceptflag(fexcept_t *__flagp, int __excepts)
+{
+ fexcept_t __fpscr;
+
+ __get_fpscr(__fpscr);
+
+ *__flagp = __fpscr & __excepts & FE_ALL_EXCEPT;
+
+ return 0;
+}
+
+__fenv_static inline int
+fesetexceptflag(const fexcept_t *__flagp, int __excepts)
+{
+ fexcept_t __fpscr;
+
+ __get_fpscr(__fpscr);
+
+ __fpscr &= ~(__excepts & FE_ALL_EXCEPT);
+ __fpscr |= *__flagp & __excepts & FE_ALL_EXCEPT;
+
+ __set_fpscr(__fpscr);
+
+ return 0;
+}
+
+static inline void
+__fmul(double a, double b)
+{
+#ifdef __sh4__
+ __asm__ __volatile__ ("fmul %1, %0" : "+d" (a) : "d" (b));
+#endif
+}
+
+static inline void
+__fdiv(double a, double b) {
+#ifdef __sh4__
+ __asm__ __volatile__ ("fdiv %1, %0" : "+d" (a) : "d" (b));
+#endif
+}
+
+__fenv_static inline int
+feraiseexcept(int __excepts)
+{
+ fexcept_t __fpscr;
+
+ if (__excepts & FE_INVALID) /* Inf * 0 */
+ __fmul(__builtin_huge_val(), 0.0);
+
+ if (__excepts & FE_DIVBYZERO) /* 1.0 / 0 */
+ __fdiv(1.0, 0.0);
+
+ if (__excepts & FE_OVERFLOW) /* MAX * MAX */
+ __fmul(LDBL_MAX, LDBL_MAX);
+
+ if (__excepts & FE_UNDERFLOW) /* MIN / 10.0 */
+ __fdiv(LDBL_MIN, 10.0);
+
+ if (__excepts & FE_INEXACT) /* 1 / 3 */
+ __fdiv(1.0, 3.0);
+
+ __get_fpscr(__fpscr);
+
+ __fpscr |= __excepts & FE_ALL_EXCEPT;
+
+ __set_fpscr(__fpscr);
+
+ return 0;
+}
+
+__fenv_static inline int
+fetestexcept(int __excepts)
+{
+ fexcept_t __fpscr;
+
+ __get_fpscr(__fpscr);
+
+ return __fpscr & __excepts & FE_ALL_EXCEPT;
+}
+
+__fenv_static inline int
+fegetround(void)
+{
+ fexcept_t __fpscr;
+
+ __get_fpscr(__fpscr);
+ return __fpscr & _ROUND_MASK;
+}
+
+__fenv_static inline int
+fesetround(int __round)
+{
+ fexcept_t __fpscr;
+
+ if (__round & ~_ROUND_MASK)
+ return -1;
+
+ __get_fpscr(__fpscr);
+
+ __fpscr &= ~_ROUND_MASK;
+ __fpscr |= __round;
+
+ __set_fpscr(__fpscr);
+
+ return 0;
+}
+
+__fenv_static inline int
+fegetenv(fenv_t *__envp)
+{
+ fexcept_t __fpscr;
+
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