Patch from George Thanos adding support for the "e1" architecture.

1 files changed, 88 insertions, 0 deletions

diff --git a/libc/sysdeps/linux/e1/bits/fenv.h b/libc/sysdeps/linux/e1/bits/fenv.h
new file mode 100644
index 000000000..dde6aceaa
--- /dev/null
+++ b/libc/sysdeps/linux/e1/bits/fenv.h
@@ -0,0 +1,88 @@
+
+/*  Copyright (C) 2002-2003,    George Thanos <george.thanos@gdt.gr>
+                                Yannis Mitsos <yannis.mitsos@gdt.gr>
+
+   Copyright (C) 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
+
+   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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#ifndef _FENV_H
+# error "Never use <bits/fenv.h> directly; include <fenv.h> instead."
+#endif
+
+
+/* Define bits representing the exception.  We use the bit positions of
+   the appropriate bits in the SR.  */
+enum
+  {
+    FE_INEXACT = (1 << 8),
+#define FE_INEXACT	FE_INEXACT
+    FE_UNDERFLOW = (1 << 9),
+#define FE_UNDERFLOW	FE_UNDERFLOW
+    FE_OVERFLOW = (1 << 10),
+#define FE_OVERFLOW	FE_OVERFLOW
+    FE_DIVBYZERO = (1 << 11),
+#define FE_DIVBYZERO	FE_DIVBYZERO
+    FE_INVALID = (1 << 12) 
+#define FE_INVALID	FE_INVALID
+  };
+
+#define FE_ALL_EXCEPT \
+	(FE_INEXACT | FE_DIVBYZERO | FE_UNDERFLOW | FE_OVERFLOW | FE_INVALID)
+
+/* We support 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_TOWARDZERO = 1 << 13 ,
+#define FE_TOWARDZERO	FE_TOWARDZERO
+    FE_DOWNWARD = 2 << 13,
+#define FE_DOWNWARD	FE_DOWNWARD
+    FE_UPWARD = 3 << 13
+#define FE_UPWARD	FE_UPWARD
+  };
+
+
+/* Type representing exception flags.  */
+typedef unsigned int fexcept_t;
+
+
+/* Type representing floating-point environment.*/
+typedef struct
+{
+    unsigned int round_mode;
+    unsigned int trap_enabled;
+    unsigned int accrued_except;
+    unsigned int actual_except;
+} fenv_t;
+
+#if 0
+/* If the default argument is used we use this value.  */
+const fenv FE_DFL_ENV_OBJ = {0, 0x1C00, 0}
+#define FE_DFL_ENV	(&FE_DFL_ENV_OBJ)
+
+#ifdef __USE_GNU
+/* Floating-point environment where none of the exceptions are masked.  */
+const fenv_t FE_NOMASK_ENV_OBJ = { 0, 0x1F00, 0 };
+# define FE_NOMASK_ENV	(&FE_NOMASK_ENV_OBJ)
+#endif
+
+#endif
+
+#include <bits/fenvinline.h>