[comp.sys.atari.st] Question about ARC format

hultquis@pioneer.arpa (Jeff P.M. Hultquist) (12/23/87)

Can anyone out there provide me with the specs for decoding
ARC files?  I would like to unbundle some files on a Vax before
downloading just the ones I need.

	Thanks in advance,
				Jeff Hultquist
				hultquis@pioneer.arc.nasa.gov

  Jeff P.M. Hultquist	--- hultquis@pioneer.arc.nasa.gov
			--- hultquis@ames-pioneer.arpa

Jinfu_Jinfu_Chen@cup.portal.com (01/06/88)

RE: ARC format

If you are just looking for a ready program to unARC file at VAX, you
can get a copy at CompuServe's VAX SIG which was written in FORTRAN.
I used to have a copy but didn't take it with me when changing job as the
new company doesn't have a VAX.

The source code of ARC can be found at IBM land. Some BBS (perhaps CompuServe
) have it posted. Also DEC user group may have an authentic version of ARC
in C (I crossed over some old messages at CIS a few months ago).

IEEE Computer's June 1984 issue has an article about the major compression
scheme ARC used, check page 8-19.

Jinfu Chen