rom/mathieeesingbas/ieeespsub.c

   1 /*
   2     Copyright © 1995-2004, The AROS Development Team. All rights reserved.
   3     $Id$
   4 */
   5
   6 #include "mathieeesingbas_intern.h"
   7
   8 /*
   9    FUNCTION
  10         Subtract two ieeesp numbers
  11         x = y-z;
  12
  13     RESULT
  14
  15         Flags:
  16           zero     : result is zero
  17           negative : result is negative
  18           overflow : result is out of range
  19
  20     NOTES
  21
  22     EXAMPLE
  23
  24     BUGS
  25
  26     SEE ALSO
  27
  28
  29     INTERNALS
  30       ALGORITHM:
  31         x = y - z = y + (-z).
  32
  33     HISTORY
  34 */
  35
  36 AROS_LH2(float, IEEESPSub,
  37     AROS_LHA(float, y, D0),
  38     AROS_LHA(float, z, D1),
  39     struct LibHeader *, MathIeeeSingBasBase, 12, Mathieeesingbas
  40 )
  41 {
  42     AROS_LIBFUNC_INIT
  43
  44     return IEEESPAdd(y, z ^ IEEESPSign_Mask);
  45
  46     AROS_LIBFUNC_EXIT
  47 }