OS4 port of ptplay.library:
http://aminet.net/package.php?package=mus/play/PTPlayLibrary.lha

68k vector table included for compatibility with 68k based programs.

Changes (for OS4 port):

(14-Dec-2009)
 - Fixed an out of bounds LUT access in the getperiod function

(29-Apr-2007)
 - Fixed opening of utility.library (PtSetAttrs no longer crashes)

2.6 (18-Oct-2007)
 - updated port with 2.6 changes (divide by zero bug)
 - enabled optimisations (optimised for speed, not size)

2.5 (12-Jun-2006)
 - first released version

-- original readme --

ptplay.library is a library to play protracker modules. It is based on
work of Ronald Hof, Timm Mueller and Per Johansson with my own additions:

  - shared library
  - support for SoundTracker modules

However SoundTracker support is unfinished but since there are better
MOD player libraries for MorphOS I havent got motivation to finish it.
I also started working on SoundFX player but since Mahendra Tallur
created geronto.library my work is done ;)

This source code has been rotting on my HD about two years now so I think
it is about time to release it. AmigaOS users might find it interesting still.

 PERMSSN    UID  GID    PACKED    SIZE  RATIO METHOD CRC     STAMP          NAME
---------- ----------- ------- ------- ------ ---------- ------------ -------------
[generic]                   26      26 100.0% -lh0- 8619 Apr 29  2008 AutoInstall
[generic]                25273   40780  62.0% -lh5- 06af Dec 14 19:18 ptplay.library
[generic]                  792    1423  55.7% -lh5- 40fc Dec 14 19:14 ptplay_lib.readme
[generic]                  474    1135  41.8% -lh5- 023a Jun 12  2000 Source/include/inline4/ptplay.h
[generic]                  509    1381  36.9% -lh5- 1c5c Jun 12  2000 Source/include/interfaces/ptplay.h
[generic]                 1004    3564  28.2% -lh5- 1bb3 Jun 12  2000 Source/include/LibHeader.h
[generic]                  525    1569  33.5% -lh5- ab89 Jun 12  2000 Source/include/proto/ptplay.h
[generic]                  597    1594  37.5% -lh5- dc21 Jun  8  2000 Source/include/ptplay.h
[generic]                 1427    3574  39.9% -lh5- 33cb Apr 29  2008 Source/include/ptplay_priv.h
[generic]                 1996    5758  34.7% -lh5- 9486 Apr 29  2008 Source/init.c
[generic]                  480     917  52.3% -lh5- 3095 Dec 14 19:16 Source/Makefile
[generic]                 4272   16565  25.8% -lh5- 3452 Apr 29  2008 Source/ptinit.c
[generic]                 9329   29907  31.2% -lh5- 288a Dec 14 19:17 Source/ptplay.c
[generic]                  121     214  56.5% -lh5- 3d40 Dec 14 19:18 Source/ptplay.library_rev.h
[generic]                  134     260  51.5% -lh5- f924 Dec 14 19:18 Source/ptplay.library_rev.i
[generic]                    2       2 100.0% -lh0- a797 Dec 14 19:18 Source/ptplay.library_rev.rev
[generic]                  137     273  50.2% -lh5- f987 Dec 14 19:18 Source/ptplay.library_rev.s
[generic]                  580    1889  30.7% -lh5- efab Jun 12  2000 Source/ptplay.xml
[generic]                 1587    3955  40.1% -lh5- 2891 Jun 12  2000 Source/ptplaytest.c
[generic]                  987    5471  18.0% -lh5- e1e1 Jun 12  2000 Source/ptplay_68k.c
[generic]                  408     750  54.4% -lh5- eb2d Jun 12  2000 Source/ptplay_lib.sfd
[generic]                  353     815  43.3% -lh5- 0106 Jun 12  2000 Source/ptplay_vectors.c
---------- ----------- ------- ------- ------ ---------- ------------ -------------
 Total        22 files   51013  121822  41.9%            Jan  1 21:34