fimp portable C version by JOTD

Uses a 68000->C automatic translation using awk & a C runtime with a limited
instruction set, but enough to make the imploder algo run.

Notes:

- Extremely slow so I do not recommend modes higher that 0. I have tested a lot
with mode 0, but not   a lot with other modes, and there may remain bugs in the
68000 core although it has been checked extensively.
- outputs ATN! prefix. Change the source code to output IMP! prefix if you like
- compared to the Amiga version of fimp, 4 bytes are missing in the end. I don't
know what they're used for, they're
  certainly not used to unpack the data.
  
Contributors:

- imploder.s source code taken from Beermon sources
- used some emulation code from F.A.S.T (Atari ST emulator)

 PERMSSN    UID  GID    PACKED    SIZE  RATIO METHOD CRC     STAMP          NAME
---------- ----------- ------- ------- ------ ---------- ------------ -------------
[generic]                 3626   16636  21.8% -lh5- 86bb Jul  6 20:55 fimp/fimp.c
[generic]                15358   38710  39.7% -lh5- 6a8c Jul  8 03:54 fimp/fimp.exe
[generic]                 3894   20854  18.7% -lh5- e296 Jul  6 20:54 fimp/m68k_opcodes.c
[generic]                 1991    9644  20.6% -lh5- 7c3d Jul  6 20:55 fimp/m68k_opcodes.h
[generic]                   89     145  61.4% -lh5- db65 Jul  6 20:49 fimp/makefile
[generic]                  456     759  60.1% -lh5- fb93 Jul  6 21:01 fimp/readme.txt
---------- ----------- ------- ------- ------ ---------- ------------ -------------
 Total         6 files   25414   86748  29.3%            Nov 20 18:35