BSD 4_3_Net_2 development

Work on file usr/src/usr.bin/gas/bignum.h

Synthesized-from: CSRG/cd2/net.2

diff --git a/usr/src/usr.bin/gas/bignum.h b/usr/src/usr.bin/gas/bignum.h
new file mode 100644 (file)
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+++ b/usr/src/usr.bin/gas/bignum.h
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+/* bignum.h-arbitrary precision integers
+   Copyright (C) 1987 Free Software Foundation, Inc.
+
+This file is part of GAS, the GNU Assembler.
+
+GAS is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 1, or (at your option)
+any later version.
+
+GAS 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 General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GAS; see the file COPYING.  If not, write to
+the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
+
+/***********************************************************************\
+*                                                                      *
+*      Arbitrary-precision integer arithmetic.                         *
+*      For speed, we work in groups of bits, even though this          *
+*      complicates algorithms.                                         *
+*      Each group of bits is called a 'littlenum'.                     *
+*      A bunch of littlenums representing a (possibly large)           *
+*      integer is called a 'bignum'.                                   *
+*      Bignums are >= 0.                                               *
+*                                                                      *
+\***********************************************************************/
+
+#define        LITTLENUM_NUMBER_OF_BITS        (16)
+#define        LITTLENUM_RADIX                 (1 << LITTLENUM_NUMBER_OF_BITS)
+#define        LITTLENUM_MASK                  (0xFFFF)
+#define LITTLENUM_SHIFT                        (1)
+#define CHARS_PER_LITTLENUM            (1 << LITTLENUM_SHIFT)
+#ifndef BITS_PER_CHAR
+#define BITS_PER_CHAR                  (8)
+#endif
+
+typedef unsigned short int     LITTLENUM_TYPE;
+
+
+/* JF truncated this to get around a problem with GCC */
+#define        LOG_TO_BASE_2_OF_10             (3.3219280948873623478703194294893901758651 )
+                               /* WARNING: I haven't checked that the trailing digits are correct! */
+
+/* end: bignum.h */