
                                TCARC v1.0
                 (c) 1989 by Jon Webb (DeltaVision Systems)

    You  think  ARC.TTP  is  slow? Well, so do I. It was compiled using the 
Mark  Williams C compiler. By now, everybody knows that Turbo-C ST is much, 
much  faster.  So,  I  decided  to  'adapt'  it to Turbo-C. And here is the 
result...

    TCARC  is exactly the same as ARC.TTP, except it's smaller, faster, and 
requires less memory. There are a number of bugs in Turbo C, and one of the 
most  irritating  is  the fact that it's I/O buffering sometimes forgets to 
mark  its  buffers as 'dirty'. This means that the program sometimes writes 
less  than  it should. I think I've solved this in most cases, but don't be 
suprised if it pops up now and then (should be solved very soon).

    TCARC  is  about  twice  as fast as the old version, and some bugs have 
been  removed.  The  I/O buffering has been made a little more intelligent, 
which should result in even faster operation, especially on floppy systems. 
Some 'benchmarks'...

        Operation          | TCARC.TTP | ARC.TTP |
        -------------------+-----------+---------+
        Create new ARC     |     173 s |   273 s |
        Extract from ARC   |     122 s |   202 s |
        Delete file in ARC |      23 s |    34 s |
        Add file to ARC    |      65 s |   102 s |
        Test files in ARC  |      75 s |   117 s |

    The  tests  were  done  on  an  archive containing GFA20.PRG (GfA-Basic 
v2.0),  GFA30.PRG  (v3.0),  GFA_BCOM.PRG/RSC  (GfA  2.0  compiler),  TC.PRG 
(Turbo-C),  resulting  in  over  300  K of ARC. The tests were performed on 
harddisk,  with TurboDos loaded. On floppy TCARC should be much faster than 
ARC.TTP.

    TCARC.TTP can't do squashing. The sources I have are from v5.21a, which 
couldn't  do it either. The 5.21b version had this fixed, so if anybody has 
those sources... TCARC can however UNsquash.

Please  refer to the original ARC.DOC documentation if you are not familiar 
with ARC. These should be downloadable at a BBS near you!

    ARC  is  (c) Copyright 1985 by System Enhancement Associates. TCARC was 
adapted   by   DeltaVision   Systems.   Turbo-C  is  (c)  1988  by  Borland 
International.

    TCARC  may  be  copied,  distributed and made available for download as 
long as you stick to these rules:

    - You distribute the complete package, including Docs,
    - You don't modify the program OR Docs in any way,
    - You don't charge anything expept for on-line time 
      or distribution cost.

Questions, bug reports and/or comments:

    DeltaVision Systems,
    I.B.B. laan 37,
    3582 VE Utrecht,
    The Netherlands.

or  to  Jon  Webb  at Computershop Utrecht BBS (FidoNet 2:282/350): Holland 
(0)30 - 660487, 300/1200/2400 bps, 24 hours per day.

