Move m68k from ports to libc

1 files changed, 93 insertions, 0 deletions

diff --git a/sysdeps/m68k/m680x0/fpu/mathimpl.h b/sysdeps/m68k/m680x0/fpu/mathimpl.h
new file mode 100644
index 0000000000..2b129a86bd
--- /dev/null
+++ b/sysdeps/m68k/m680x0/fpu/mathimpl.h
@@ -0,0 +1,93 @@
+/* Definitions of libc internal inline math functions implemented
+   by the m68881/2.
+   Copyright (C) 1991-2014 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   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, see
+   <http://www.gnu.org/licenses/>.  */
+
+/* This file contains the definitions of the inline math functions that
+   are only used internally inside libm, not visible to the user.  */
+
+__inline_mathop	(__ieee754_acos, acos)
+__inline_mathop	(__ieee754_asin, asin)
+__inline_mathop	(__ieee754_cosh, cosh)
+__inline_mathop	(__ieee754_sinh, sinh)
+__inline_mathop	(__ieee754_exp, etox)
+__inline_mathop	(__ieee754_exp2, twotox)
+__inline_mathop	(__ieee754_exp10, tentox)
+__inline_mathop	(__ieee754_log10, log10)
+__inline_mathop	(__ieee754_log2, log2)
+__inline_mathop	(__ieee754_log, logn)
+__inline_mathop	(__ieee754_sqrt, sqrt)
+__inline_mathop	(__ieee754_atanh, atanh)
+
+__m81_defun (double, __ieee754_remainder, (double __x, double __y))
+{
+  double __result;
+  __asm ("frem%.x %1, %0" : "=f" (__result) : "f" (__y), "0" (__x));
+  return __result;
+}
+
+__m81_defun (float, __ieee754_remainderf, (float __x, float __y))
+{
+  float __result;
+  __asm ("frem%.x %1, %0" : "=f" (__result) : "f" (__y), "0" (__x));
+  return __result;
+}
+
+__m81_defun (long double,
+	     __ieee754_remainderl, (long double __x, long double __y))
+{
+  long double __result;
+  __asm ("frem%.x %1, %0" : "=f" (__result) : "f" (__y), "0" (__x));
+  return __result;
+}
+
+__m81_defun (double, __ieee754_fmod, (double __x, double __y))
+{
+  double __result;
+  __asm ("fmod%.x %1, %0" : "=f" (__result) : "f" (__y), "0" (__x));
+  return __result;
+}
+
+__m81_defun (float, __ieee754_fmodf, (float __x, float __y))
+{
+  float __result;
+  __asm ("fmod%.x %1, %0" : "=f" (__result) : "f" (__y), "0" (__x));
+  return __result;
+}
+
+__m81_defun (long double,
+	     __ieee754_fmodl, (long double __x, long double __y))
+{
+  long double __result;
+  __asm ("fmod%.x %1, %0" : "=f" (__result) : "f" (__y), "0" (__x));
+  return __result;
+}
+
+/* Get the m68881 condition codes, to quickly check multiple conditions.  */
+static __inline__ unsigned long
+__m81_test (long double __val)
+{
+  unsigned long __fpsr;
+  __asm ("ftst%.x %1; fmove%.l %/fpsr,%0" : "=dm" (__fpsr) : "f" (__val));
+  return __fpsr;
+}
+
+/* Bit values returned by __m81_test.  */
+#define __M81_COND_NAN  (1 << 24)
+#define __M81_COND_INF  (2 << 24)
+#define __M81_COND_ZERO (4 << 24)
+#define __M81_COND_NEG  (8 << 24)