m68k specific llrint implementation.

2 files changed, 131 insertions, 0 deletions

diff --git a/sysdeps/m68k/fpu/s_llrintf.c b/sysdeps/m68k/fpu/s_llrintf.c
new file mode 100644
index 0000000000..3c8528c4e8
--- /dev/null
+++ b/sysdeps/m68k/fpu/s_llrintf.c
@@ -0,0 +1,66 @@
+/* Round argument to nearest integral value according to current rounding
+   direction.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
+
+   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.  */
+
+#define __LIBC_M81_MATH_INLINES
+#include <math.h>
+#include "math_private.h"
+
+long long int
+__llrintf (float x)
+{
+  int32_t e;
+  u_int32_t i, s;
+  long long int result;
+
+  x = __m81_u(__rintf) (x);
+
+  GET_FLOAT_WORD (i, x);
+
+  e = ((i >> 23) & 0xff) - 0x7f;
+  if (e < 0)
+    return 0;
+  s = i;
+  i &= 0x7fffff;
+  i |= 0x800000;
+
+  if (e < 63)
+    {
+      if (e > 55)
+	result = (long long int) (i << (e - 55)) << 32;
+      else if (e > 31)
+	result = (((long long int) (i >> (55 - e)) << 32) | (i << (e - 23)));
+      else if (e > 23)
+	result = i << (e - 23);
+      else
+	result = i >> (23 - e);
+      if (s & 0x80000000)
+	result = -result;
+    }
+  else
+    /* The number is too large or not finite.  The standard leaves it
+       undefined what to return when the number is too large to fit in a
+       `long long int'.  */
+    result = -1LL;
+
+  return result;
+}
+
+weak_alias (__llrintf, llrintf)
diff --git a/sysdeps/m68k/fpu/s_llrintl.c b/sysdeps/m68k/fpu/s_llrintl.c
new file mode 100644
index 0000000000..55190b9eb3
--- /dev/null
+++ b/sysdeps/m68k/fpu/s_llrintl.c
@@ -0,0 +1,65 @@
+/* Round argument to nearest integral value according to current rounding
+   direction.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
+
+   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.  */
+
+#define __LIBC_M81_MATH_INLINES
+#include <math.h>
+#include "math_private.h"
+
+long long int
+__llrintl (long double x)
+{
+  int32_t e, s;
+  u_int32_t h, l;
+  long long int result;
+
+  x = __m81_u(__rintl) (x);
+
+  GET_LDOUBLE_WORDS (e, h, l, x);
+
+  s = e;
+  e = (e & 0x7fff) - 0x3fff;
+  if (e < 0)
+    return 0;
+
+  if (e < 63)
+    {
+      if (e > 31)
+	{
+	  l >>= 63 - e;
+	  l |= h << (e - 31);
+	  h >>= 63 - e;
+	  result = ((long long int) h << 32) | l;
+	}
+      else
+	result = h >> (31 - e);
+      if (s & 0x8000)
+	result = -result;
+    }
+  else
+    /* The number is too large or not finite.  The standard leaves it
+       undefined what to return when the number is too large to fit in a
+       `long long int'.  */
+    result = -1LL;
+
+  return result;
+}
+
+weak_alias (__llrintl, llrintl)