Rewritten.

sysdeps/m68k/fpu/e_scalb.c

@@ -1,2 +1,61 @@
-#define FUNC __ieee754_scalb
-#include <e_fmod.c>
+/* 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>
+
+#ifndef SUFF
+#define SUFF
+#endif
+#ifndef float_type
+#define float_type double
+#endif
+
+#define CONCATX(a,b) __CONCAT(a,b)
+#define s(name) CONCATX(name,SUFF)
+#define m81(func) __m81_u(s(func))
+
+float_type
+s(__ieee754_scalb) (float_type x, float_type fn)
+{
+  float_type retval;
+  unsigned long x_cond = __m81_test (x);
+  unsigned long fn_cond = __m81_test (fn);
+
+  if ((x_cond | fn_cond) & __M81_COND_NAN)
+    return x * fn;
+
+  if (fn_cond & __M81_COND_INF)
+    {
+      if (!(fn_cond & __M81_COND_NEG))
+	return x * fn;
+      else if (x_cond & __M81_COND_ZERO)
+	return x;
+      else if (x_cond & __M81_COND_INF)
+	return 0.0/0.0;
+      else
+	return x / -fn;
+    }
+
+  if (m81(__rint) (fn) != fn)
+    return 0.0/0.0;
+
+  __asm ("fscale%.x %1, %0" : "=f" (retval) : "f" (fn), "0" (x));
+  return retval;
+}

sysdeps/m68k/fpu/e_scalbf.c

@@ -1,2 +1,3 @@
-#define FUNC __ieee754_scalbf
-#include <e_fmodf.c>
+#define SUFF f
+#define float_type float
+#include <e_scalb.c>

sysdeps/m68k/fpu/e_scalbl.c

@@ -1,2 +1,3 @@
-#define FUNC __ieee754_scalbl
-#include <e_fmodl.c>
+#define SUFF l
+#define float_type long double
+#include <e_scalb.c>