source: trunk/minix/lib/ack/fphook/FP_shift.h@ 9

/*
  (c) copyright 1988 by the Vrije Universiteit, Amsterdam, The Netherlands.
  See the copyright notice in the ACK home directory, in the file "Copyright".
*/

/* $Header: /cvsup/minix/src/lib/ack/fphook/FP_shift.h,v 1.1 2005/10/10 15:27:43 beng Exp $ */

/*
        include file for floating point package
*/

# define        CARRYBIT        0x80000000L
# define        NORMBIT         0x80000000L
# define        EXP_STORE       16


                                /* parameters for Single Precision */
#define SGL_EXPSHIFT    7
#define SGL_M1LEFT      8
#define SGL_ZERO        0xffffff80L
#define SGL_EXACT       0xff
#define SGL_RUNPACK     SGL_M1LEFT

#define SGL_ROUNDUP     0x80
#define SGL_CARRYOUT    0x01000000L
#define SGL_MASK        0x007fffffL

                                /* parameters for Double Precision */
                                /* used in extend.c */

#define DBL_EXPSHIFT    4

#define DBL_M1LEFT      11

#define DBL_RPACK       (32-DBL_M1LEFT)
#define DBL_LPACK       DBL_M1LEFT

                                /* used in compact.c */

#define DBL_ZERO        0xfffffd00L

#define DBL_EXACT       0x7ff

#define DBL_RUNPACK     DBL_M1LEFT
#define DBL_LUNPACK     (32-DBL_RUNPACK)

#define DBL_ROUNDUP     0x400
#define DBL_CARRYOUT    0x00200000L
#define DBL_MASK        0x000fffffL