1 files changed, 86 insertions, 0 deletions
diff --git a/sysdeps/sparc/fpu_control.h b/sysdeps/sparc/fpu_control.h
new file mode 100644
index 0000000000..a8015abc29
--- /dev/null
+++ b/sysdeps/sparc/fpu_control.h
@@ -0,0 +1,86 @@
+/* FPU control word bits.  SPARC version.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Miguel de Icaza
+
+   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.  */
+
+#ifndef _FPU_CONTROL_H
+#define _FPU_CONTROL_H	1
+
+
+#include <features.h>
+
+/* precision control */
+#define _FPU_EXTENDED 0x00000000     /* RECOMMENDED */
+#define _FPU_DOUBLE   0x20000000
+#define _FPU_80BIT    0x30000000
+#define _FPU_SINGLE   0x10000000     /* DO NOT USE */
+
+/* rounding control / Sparc */
+#define _FPU_RC_NEAREST 0x0        /* RECOMMENDED */
+#define _FPU_RC_DOWN    0x80000000
+#define _FPU_RC_UP      0xc0000000
+#define _FPU_RC_ZERO    0x40000000
+
+#define _FPU_RESERVED 0x300000  /* Reserved bits in cw */
+
+
+/* Now two recommended cw */
+
+/* Linux default:
+     - extended precision
+     - rounding to nearest
+     - exceptions on overflow, zero divide and NaN */
+#define _FPU_DEFAULT  0x1f
+
+/* IEEE:  same as above, but exceptions */
+#define _FPU_IEEE     0x0
+
+/* private namespace. It should only be used by crt0.o. */
+extern unsigned short __fpu_control;
+
+__BEGIN_DECLS
+
+/* called by crt0.o. It can be used to manipulate 387 control word. */
+extern void __setfpucw __P ((unsigned short));
+
+__END_DECLS
+
+/* Type of the control word.  */
+typedef unsigned int fpu_control_t __attribute__ ((__mode__ (__HI__)));
+
+#define _FPU_GETCW(cw) __asm__ ("st %%fsr,%0" : "=m" (*&cw))
+#define _FPU_SETCW(cw) __asm__ ("ld %0,%%fsr" : "=m" (*&cw))
+
+#if 0
+/* The intel original macros */
+/* Macros for accessing the hardware control word.  */
+#define _FPU_GETCW(cw) __asm__ ("fnstcw %0" : "=m" (*&cw))
+#define _FPU_SETCW(cw) __asm__ ("fldcw %0" : : "m" (*&cw))
+#endif
+
+/* Default control word set at startup.  */
+extern fpu_control_t __fpu_control;
+
+__BEGIN_DECLS
+
+/* Called at startup.  It can be used to manipulate fpu control register.  */
+extern void __setfpucw __P ((fpu_control_t));
+
+__END_DECLS
+
+#endif	/* fpu_control.h */