arch/m68k/math-emu/fp_log.h

   1 /*
   2
   3   fp_log.h: floating-point math routines for the Linux-m68k
   4   floating point emulator.
   5
   6   Copyright (c) 1998-1999 David Huggins-Daines / Roman Zippel.
   7
   8   I hereby give permission, free of charge, to copy, modify, and
   9   redistribute this software, in source or binary form, provided that
  10   the above copyright notice and the following disclaimer are included
  11   in all such copies.
  12
  13   THIS SOFTWARE IS PROVIDED "AS IS", WITH ABSOLUTELY NO WARRANTY, REAL
  14   OR IMPLIED.
  15
  16 */
  17
  18 #ifndef _FP_LOG_H
  19 #define _FP_LOG_H
  20
  21 #include "fp_emu.h"
  22
  23 /* floating point logarithmic instructions:
  24
  25    the arguments to these are in the "internal" extended format, that
  26    is, an "exploded" version of the 96-bit extended fp format used by
  27    the 68881.
  28
  29    they return a status code, which should end up in %d0, if all goes
  30    well.  */
  31
  32 struct fp_ext *fp_fsqrt(struct fp_ext *dest, struct fp_ext *src);
  33 struct fp_ext *fp_fetoxm1(struct fp_ext *dest, struct fp_ext *src);
  34 struct fp_ext *fp_fetox(struct fp_ext *dest, struct fp_ext *src);
  35 struct fp_ext *fp_ftwotox(struct fp_ext *dest, struct fp_ext *src);
  36 struct fp_ext *fp_ftentox(struct fp_ext *dest, struct fp_ext *src);
  37 struct fp_ext *fp_flogn(struct fp_ext *dest, struct fp_ext *src);
  38 struct fp_ext *fp_flognp1(struct fp_ext *dest, struct fp_ext *src);
  39 struct fp_ext *fp_flog10(struct fp_ext *dest, struct fp_ext *src);
  40 struct fp_ext *fp_flog2(struct fp_ext *dest, struct fp_ext *src);
  41 struct fp_ext *fp_fgetexp(struct fp_ext *dest, struct fp_ext *src);
  42 struct fp_ext *fp_fgetman(struct fp_ext *dest, struct fp_ext *src);
  43
  44 #endif /* _FP_LOG_H */