lib/float/FP_shift.h

   1 /*
   2   (c) copyright 1988 by the Vrije Universiteit, Amsterdam, The Netherlands.
   3   See the copyright notice in the ACK home directory, in the file "Copyright".
   4 */
   5
   6 /* $Header$ */
   7
   8 /*
   9         include file for floating point package
  10 */
  11
  12 # define        CARRYBIT        0x80000000L
  13 # define        NORMBIT         0x80000000L
  14 # define        EXP_STORE       16
  15
  16
  17                                 /* parameters for Single Precision */
  18 #define SGL_EXPSHIFT    7
  19 #define SGL_M1LEFT      8
  20 #define SGL_ZERO        0xffffff80L
  21 #define SGL_EXACT       0xff
  22 #define SGL_RUNPACK     SGL_M1LEFT
  23
  24 #define SGL_ROUNDUP     0x80
  25 #define SGL_CARRYOUT    0x01000000L
  26 #define SGL_MASK        0x007fffffL
  27
  28                                 /* parameters for Double Precision */
  29                                 /* used in extend.c */
  30
  31 #define DBL_EXPSHIFT    4
  32
  33 #define DBL_M1LEFT      11
  34
  35 #define DBL_RPACK       (32-DBL_M1LEFT)
  36 #define DBL_LPACK       DBL_M1LEFT
  37
  38                                 /* used in compact.c */
  39
  40 #define DBL_ZERO        0xfffffd00L
  41
  42 #define DBL_EXACT       0x7ff
  43
  44 #define DBL_RUNPACK     DBL_M1LEFT
  45 #define DBL_LUNPACK     (32-DBL_RUNPACK)
  46
  47 #define DBL_ROUNDUP     0x400
  48 #define DBL_CARRYOUT    0x00200000L
  49 #define DBL_MASK        0x000fffffL