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-rw-r--r--sysdeps/m68k/fpu/e_scalb.c63
1 files changed, 61 insertions, 2 deletions
diff --git a/sysdeps/m68k/fpu/e_scalb.c b/sysdeps/m68k/fpu/e_scalb.c
index 51d9beefa6..a5923ab450 100644
--- a/sysdeps/m68k/fpu/e_scalb.c
+++ b/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;
+}