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authorUlrich Drepper <drepper@redhat.com>1997-04-17 15:10:04 +0000
committerUlrich Drepper <drepper@redhat.com>1997-04-17 15:10:04 +0000
commitdd33e89fb2693e88ba64e6b947184c5abf70ff00 (patch)
tree3a621cf04df476aa6dd7905c41e77e8133baae3e /sysdeps/m68k/fpu/fenvbits.h
parent7799b7b3350fdcadc6dfb8821fb49b7772c96701 (diff)
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Update.
1997-04-17 16:55  Ulrich Drepper  <drepper@cygnus.com>

	* misc/libgen.h: Change prototype for of basename to XPG variant.
	* stdlib/Makefile (routines): Add xpg_basename.
	* stdlib/basename.c: New file.
	* string/string.h: Don't declare basename function if basename
	macro is available.

1997-04-16 17:33  Miles Bader  <miles@gnu.ai.mit.edu>

	* login/utmp_file.c (proc_utmp_eq): Only use ut_id field if valid.

1997-04-15 12:47  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* sysdeps/m68k/fpu/fclrexcpt.c: New file.
	* sysdeps/m68k/fpu/fenvbits.h: New file.
	* sysdeps/m68k/fpu/fegetenv.c: New file.
	* sysdeps/m68k/fpu/fegetround.c: New file.
	* sysdeps/m68k/fpu/fesetenv.c: New file.
	* sysdeps/m68k/fpu/fesetround.c: New file.
	* sysdeps/m68k/fpu/feupdateenv.c: New file.
	* sysdeps/m68k/fpu/fgetexcptflg.c: New file.
	* sysdeps/m68k/fpu/fraiseexcpt.c: New file.
	* sysdeps/m68k/fpu/fsetexcptflg.c: New file.
	* sysdeps/m68k/fpu/ftestexcept.c: New file.
	* sysdeps/m68k/fpu/mathbits.h: New file.

	* sysdeps/m68k/fpu/s_remquo.c: New file.
	* sysdeps/m68k/fpu/s_remquol.c: New file.
	* sysdeps/m68k/fpu/s_remquof.c: New file.

	* sysdeps/libm-ieee754/s_roundl.c: Restore integer bit when
	mantissa overflows into exponent.  Fix priority of >> vs +.

	* math/libm-test.c (basic_tests): Use the appropriate isnan and
	isinf function to test the value of the nan function.

1997-04-15 13:40  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/libm-i387/s_finite.S: Fix typo.

	* sysdeps/i386/fpu/__math.h: Add optimized versions of isgreater,
	isgreaterequal, isless, islessequal, islessgreater, and
	isunordered.
Diffstat (limited to 'sysdeps/m68k/fpu/fenvbits.h')
-rw-r--r--sysdeps/m68k/fpu/fenvbits.h80
1 files changed, 80 insertions, 0 deletions
diff --git a/sysdeps/m68k/fpu/fenvbits.h b/sysdeps/m68k/fpu/fenvbits.h
new file mode 100644
index 0000000000..b653b1aafd
--- /dev/null
+++ b/sysdeps/m68k/fpu/fenvbits.h
@@ -0,0 +1,80 @@
+/* Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+/* This file should never be included directly.  */
+
+#ifndef _FENVBITS_H
+#define _FENVBITS_H	1
+
+/* Define bits representing the exception.  We use the bit positions of
+   the appropriate bits in the FPSR Accrued Exception Byte.  */
+enum
+  {
+    FE_INEXACT = 1 << 3,
+#define FE_INEXACT	FE_INEXACT
+    FE_DIVBYZERO = 1 << 4,
+#define FE_DIVBYZERO	FE_DIVBYZERO
+    FE_UNDERFLOW = 1 << 5,
+#define FE_UNDERFLOW	FE_UNDERFLOW
+    FE_OVERFLOW = 1 << 6,
+#define FE_OVERFLOW	FE_OVERFLOW
+    FE_INVALID = 1 << 7
+#define FE_INVALID	FE_INVALID
+  };
+
+#define FE_ALL_EXCEPT \
+	(FE_INEXACT | FE_DIVBYZERO | FE_UNDERFLOW | FE_OVERFLOW | FE_INVALID)
+
+/* The m68k FPU supports all of the four defined rounding modes.  We use
+   the bit positions in the FPCR Mode Control Byte as the values for the
+   appropriate macros.  */
+enum
+  {
+    FE_TONEAREST = 0,
+#define FE_TONEAREST	FE_TONEAREST
+    FE_TOWARDSZERO = 1 << 4,
+#define FE_TOWARDSZERO	FE_TOWARDSZERO
+    FE_DOWNWARD = 2 << 4,
+#define FE_DOWNWARD	FE_DOWNWARD
+    FE_UPWARD = 3 << 4
+#define FE_UPWARD	FE_UPWARD
+  };
+
+
+/* Type representing exception flags.  */
+typedef unsigned int fexcept_t;
+
+
+/* Type representing floating-point environment.  This structure
+   corresponds to the layout of the block written by `fmovem'.  */
+typedef struct
+  {
+    fexcept_t control_register;
+    fexcept_t status_register;
+  }
+fenv_t;
+
+/* If the default argument is used we use this value.  */
+#define FE_DFL_ENV	((fenv_t *) -1)
+
+#ifdef __USE_GNU
+/* Floating-point environment where none of the exceptions are masked.  */
+# define FE_NOMASK_ENV	((fenv_t *) -2)
+#endif
+
+#endif /* fenvbits.h */