1 files changed, 76 insertions, 0 deletions
diff --git a/sys/arch/m68k/fpe/fpu_getexp.c b/sys/arch/m68k/fpe/fpu_getexp.c
new file mode 100644
index 00000000000..c2fe60531ab
--- /dev/null
+++ b/sys/arch/m68k/fpe/fpu_getexp.c
@@ -0,0 +1,76 @@
+/*	$NetBSD: fpu_getexp.c,v 1.1 1995/11/03 04:47:11 briggs Exp $	*/
+
+/*
+ * Copyright (c) 1995  Ken Nakata
+ *	All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the author nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)fpu_getexp.c	10/8/95
+ */
+
+#include <sys/types.h>
+
+#include "fpu_emulate.h"
+
+struct fpn *
+fpu_getexp(fe)
+     struct fpemu *fe;
+{
+  struct fpn *fp = &fe->fe_f2;
+
+  fe->fe_fpsr &= ~FPSR_EXCP; /* clear all exceptions */
+
+  if (fp->fp_class == FPC_INF) {
+    fp = fpu_newnan(fe);
+    fe->fe_fpsr |= FPSR_OPERR;
+  } else if (fp->fp_class == FPC_NUM) { /* a number */
+    fpu_explode(fe, &fe->fe_f3, FTYPE_LNG, &fp->fp_exp);
+    fp = &fe->fe_f3;
+  } else if (fp->fp_class == FPC_SNAN) { /* signaling NaN */
+    fe->fe_fpsr |= FPSR_SNAN;
+  } /* else if fp == zero or fp == quiet NaN, return itself */
+  return fp;
+}
+
+struct fpn *
+fpu_getman(fe)
+     struct fpemu *fe;
+{
+  struct fpn *fp = &fe->fe_f2;
+
+  fe->fe_fpsr &= ~FPSR_EXCP; /* clear all exceptions */
+
+  if (fp->fp_class == FPC_INF) {
+    fp = fpu_newnan(fe);
+    fe->fe_fpsr |= FPSR_OPERR;
+  } else if (fp->fp_class == FPC_NUM) { /* a number */
+    fp->fp_exp = 0;
+  } else if (fp->fp_class == FPC_SNAN) { /* signaling NaN */
+    fe->fe_fpsr |= FPSR_SNAN;
+  } /* else if fp == zero or fp == quiet NaN, return itself */
+  return fp;
+}
+