usr/src/usr.bin/f77/pass1.vax/conv.h

/*-
 * Copyright (c) 1980 The Regents of the University of California.
 * All rights reserved.
 *
 * This module is believed to contain source code proprietary to AT&T.
 * Use and redistribution is subject to the Berkeley Software License
 * Agreement and your Software Agreement with AT&T (Western Electric).
 *
 *      @(#)conv.h      5.2 (Berkeley) 4/12/91
 */

#if (HERE != VAX || TARGET != VAX)
        }}}}}   WRONG MACHINE!!!        }}}}}
#endif

/*  The code for converting the types of constants is not  */
/*  portable.  The problems involved in dealing with       */
/*  features such as reserved operands and byte orderings  */
/*  have proven very difficult to deal with in a portable  */
/*  manner.  Because of impending deadlines, I have put    */
/*  off trying to achieve portability.                     */
/*                                                         */
/*                             -Robert Paul Corbett        */
/*                              1983 May 1                 */


#define BLANK   ' '

#define MAXWORD  32767
#define MINWORD -32768

typedef
  struct Dreal
    {
      unsigned fract1: 7;
      unsigned exp: 8;
      unsigned sign: 1;
      unsigned fract2: 16;
      unsigned fract3: 16;
      unsigned fract4: 16;
    }
  dreal;

typedef
  struct Quad
    {
      long word1;
      long word2;
    }
  quad;

typedef
  union RealValue
    {
      double d;
      quad   q;
      dreal  f;
    }
  realvalue;