sralston@sfc.Wichita.NCR.COM (sralston) (10/16/89)
I have a friend (really) who cannot uncompress files under XENIX/286 (version 2.2.1, I believe). These file were compressed using 16-bit compression under XENIX/386 (2.3.1). He can uncompress files that were compressed with 12-bit compression. He can compile compress for 16-bits using -DBITS=16, but whenever he tries to compress files the compression percent comes out negative and compress leaves the original file alone. Can anybody tell me why 16-bit compress does not work on XENIX/286? Many thanks in advance. --- -- Steve Ralston NCR Corp, PPD - Wichita, 3718 N Rock Rd, Wichita, KS 67226 Advanced Product/Process Technologies (ms14) Voice-Plus: 654-8058 Internet: S.Ralston@Wichita.NCR.COM Voice: (316) 636-8058 UUCP: uunet!ncrlnk!ncrwic!s.ralston FAX: (316) 636-8889
croes@imec.uucp (Kris Croes) (10/20/89)
In article <303@sfc.Wichita.NCR.COM> S.Ralston@Wichita.NCR.COM (Steve Ralston) writes: > >Can anybody tell me why 16-bit compress does not work on XENIX/286? > I know this question, it comes back over and over again in all kinds of newsgroups, but I never saw an answer. DOES ANYONE HAVE A 16-BIT COMPRESS THAT WORKS ON XENIX/286? Could that someoe please post (or mail me) the source Kris. -- -------- K. CROES - IMEC - Leuven - Belgium ..!prlb2!imec!croes The Demon King bites in your leg and you feel weaker.
wbader@scarecrow.mse.lehigh.edu (William Bader) (10/24/89)
16-bit compress requires a hash table with 69000 entries, which is tricky to set up on a machine with 64K segments. I have a version that can do 16 bit compression under Xenix-286 (and under MSDOS), but I can not send to a UUCP address.
don@dksfr.UUCP (don kossman) (10/24/89)
In article <619@imec.UUCP> croes@imec.UUCP (Kris Croes) writes: >DOES ANYONE HAVE A 16-BIT COMPRESS THAT WORKS ON XENIX/286? the compress.c program in your netnews src directory, if compiled WITHOUT "pcxt" defined and WITH "M_XENIX" defined, will do 16-bit compression/decompression. according to the header, it is compress 1.13, based on compress.c v4.0. works just fine on my xenix 286 system (which has a measly 1M of RAM) decompressing files which i exchange with an ULTRIX VAX. don -- Don Kossman, SEI Information Technology, Los Angeles mahendo.jpl.nasa.gov!jplgodo!seila!don OR sun!suntzu!seila!don