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Diffstat (limited to 'usr.bin/compress/doc/revision.log')
| -rw-r--r-- | usr.bin/compress/doc/revision.log | 116 |
1 files changed, 0 insertions, 116 deletions
diff --git a/usr.bin/compress/doc/revision.log b/usr.bin/compress/doc/revision.log deleted file mode 100644 index 16ca49d..0000000 --- a/usr.bin/compress/doc/revision.log +++ /dev/null @@ -1,116 +0,0 @@ -/* - * $Hdr: compress.c,v 4.0 85/07/30 12:50:00 joe Release $ - * $Lg: compress.c,v $ - * Revision 4.0 85/07/30 12:50:00 joe - * Removed ferror() calls in output routine on every output except first. - * Prepared for release to the world. - * - * Revision 3.6 85/07/04 01:22:21 joe - * Remove much wasted storage by overlaying hash table with the tables - * used by decompress: tab_suffix[1<<BITS], stack[8000]. Updated USERMEM - * computations. Fixed dump_tab() DEBUG routine. - * - * Revision 3.5 85/06/30 20:47:21 jaw - * Change hash function to use exclusive-or. Rip out hash cache. These - * speedups render the megamemory version defunct, for now. Make decoder - * stack global. Parts of the RCS trunks 2.7, 2.6, and 2.1 no longer apply. - * - * Revision 3.4 85/06/27 12:00:00 ken - * Get rid of all floating-point calculations by doing all compression ratio - * calculations in fixed point. - * - * Revision 3.3 85/06/24 21:53:24 joe - * Incorporate portability suggestion for M_XENIX. Got rid of text on #else - * and #endif lines. Cleaned up #ifdefs for vax and interdata. - * - * Revision 3.2 85/06/06 21:53:24 jaw - * Incorporate portability suggestions for Z8000, IBM PC/XT from mailing list. - * Default to "quiet" output (no compression statistics). - * - * Revision 3.1 85/05/12 18:56:13 jaw - * Integrate decompress() stack speedups (from early pointer mods by McKie). - * Repair multi-file USERMEM gaffe. Unify 'force' flags to mimic semantics - * of SVR2 'pack'. Streamline block-compress table clear logic. Increase - * output byte count by magic number size. - * - * Revision 3.0 84/11/27 11:50:00 petsd!joe - * Set HSIZE depending on BITS. Set BITS depending on USERMEM. Unrolled - * loops in clear routines. Added "-C" flag for 2.0 compatibility. Used - * unsigned compares on Perkin-Elmer. Fixed foreground check. - * - * Revision 2.7 84/11/16 19:35:39 ames!jaw - * Cache common hash codes based on input statistics; this improves - * performance for low-density raster images. Pass on #ifdef bundle - * from Turkowski. - * - * Revision 2.6 84/11/05 19:18:21 ames!jaw - * Vary size of hash tables to reduce time for small files. - * Tune PDP-11 hash function. - * - * Revision 2.5 84/10/30 20:15:14 ames!jaw - * Junk chaining; replace with the simpler (and, on the VAX, faster) - * double hashing, discussed within. Make block compression standard. - * - * Revision 2.4 84/10/16 11:11:11 ames!jaw - * Introduce adaptive reset for block compression, to boost the rate - * another several percent. (See mailing list notes.) - * - * Revision 2.3 84/09/22 22:00:00 petsd!joe - * Implemented "-B" block compress. Implemented REVERSE sorting of tab_next. - * Bug fix for last bits. Changed fwrite to putchar loop everywhere. - * - * Revision 2.2 84/09/18 14:12:21 ames!jaw - * Fold in news changes, small machine typedef from thomas, - * #ifdef interdata from joe. - * - * Revision 2.1 84/09/10 12:34:56 ames!jaw - * Configured fast table lookup for 32-bit machines. - * This cuts user time in half for b <= FBITS, and is useful for news batching - * from VAX to PDP sites. Also sped up decompress() [fwrite->putc] and - * added signal catcher [plus beef in writeerr()] to delete effluvia. - * - * Revision 2.0 84/08/28 22:00:00 petsd!joe - * Add check for foreground before prompting user. Insert maxbits into - * compressed file. Force file being uncompressed to end with ".Z". - * Added "-c" flag and "zcat". Prepared for release. - * - * Revision 1.10 84/08/24 18:28:00 turtlevax!ken - * Will only compress regular files (no directories), added a magic number - * header (plus an undocumented -n flag to handle old files without headers), - * added -f flag to force overwriting of possibly existing destination file, - * otherwise the user is prompted for a response. Will tack on a .Z to a - * filename if it doesn't have one when decompressing. Will only replace - * file if it was compressed. - * - * Revision 1.9 84/08/16 17:28:00 turtlevax!ken - * Removed scanargs(), getopt(), added .Z extension and unlimited number of - * filenames to compress. Flags may be clustered (-Ddvb12) or separated - * (-D -d -v -b 12), or combination thereof. Modes and other status is - * copied with copystat(). -O bug for 4.2 seems to have disappeared with - * 1.8. - * - * Revision 1.8 84/08/09 23:15:00 joe - * Made it compatible with vax version, installed jim's fixes/enhancements - * - * Revision 1.6 84/08/01 22:08:00 joe - * Sped up algorithm significantly by sorting the compress chain. - * - * Revision 1.5 84/07/13 13:11:00 srd - * Added C version of vax asm routines. Changed structure to arrays to - * save much memory. Do unsigned compares where possible (faster on - * Perkin-Elmer) - * - * Revision 1.4 84/07/05 03:11:11 thomas - * Clean up the code a little and lint it. (Lint complains about all - * the regs used in the asm, but I'm not going to "fix" this.) - * - * Revision 1.3 84/07/05 02:06:54 thomas - * Minor fixes. - * - * Revision 1.2 84/07/05 00:27:27 thomas - * Add variable bit length output. - * - */ - -static char rcs_ident[] = - "$Hdr: compress.c,v 4.0 85/07/30 12:50:00 joe Release $"; |