retro-software.B5500-software/KRUNCH-UNKRNCH

KRUNCH and UNKRNCH Utilities for the Burroughs B5500

KRUNCH reads a card deck containing a B5500 Algol source program,
removing all extraneous spaces and reducing the source to the minimum
number of card images, writing the filtered source to the card punch.
All comments are also removed from the source, and the output deck is
resequenced 10+10. The source program is still compilable, but it is not
very readable. A sample run deck would be:

        ?EXECUTE KRUNCH/UTILITY
        ?DATA CARD
            :                   :
            : Algol source deck :
            :                   :
        ?END

UNKRNCH reads a B5500 Algol source program and reformats it, applying
standard spacing and indentation to it. It was probably written
originally to reverse what KRUNCH does, but it will work on any Algol
source to function as a primitive "pretty print" formatter. It preserves
comments in the input, but of course cannot reinsert comments that were
stripped out by KRUNCH.

Input can be from a card deck or a "0CRDIMG" library tape. Output can be
to a new punched card deck, another "0CRDIMG" tape, or the line printer.
The reformatted program is resequenced 100+100. The program reads a
parameter card in free-field format with two integers that define the
modes of input and output. The values of these integers are defined in a
comment at the beginning of the source. A sample run deck to read the
original program from cards and output to the line printer would be
(note the trailing comma on the parameter card):

        ?EXECUTE UNKRNCH/UTILITY
        ?DATA CARD
        0,2,
            :                   :
            : Algol source deck :
            :                   :
        ?END


These programs appear to have been written by someone at Burroughs. They
were donated by Burroughs to the CUBE (user association) library in
1968. I encountered them at the University of Delaware in 1970 and saved
compile listings of them. The source files below were transcribed from
those listing.

KRUNCH.UTILITY.alg_m
    Algol source for the KRUNCH utility.

KRUNCH-As-krunched.card
    Card deck resulting from running the source for KRUNCH through
    KRUNCH itself.

KRUNCH-Compile.lst
    Algol compile listing for KRUNCH generated using the retro-B5500
    emulator running Mark XIII software.

UNKRNCH.UTILITY.alg_m
    Algol source for the UNKRNCH utility.

UNKRNCH-Compile-Run.lst
    Algol file listing for UNKRNCH generated using the retro-B5500
    emulator running Mark XIII software, followed by an execution of
    UNKRNCH that read the KRUNCH-As-krunched.card file and output the
    reformatted source to the line printer.

Paul Kimpel
May 2016