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Internet Message Format
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1984-04-29
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802b
Date: 9/7/81
From: Ben Bronson
To: All
Re: New SQ USQ and FLS
Greenlaw's latest SQUEEZER programs are FLS-11, USQ-15
and SQ-15. The main change is to SQ, which turned out
to have a bug in it--in previous versions, an occasional
combination of characters would cause it to try to generate
code longer than 16 bits, which made the files involved
non-unsqueezable. Steve Bogolub here in Chicago discovered
the bug, sent files that proved its existence to Richard
Greenlaw, and got a disk with a debugged SQ last week. It
now checks to see whether a >16 bit code is being generated
and if so prints "rescaling" and goes around again to gene-
rate a safer table.
--> FILE: FLS-11 .COM CRC = 0C 99
--> FILE: SQ-15 .COM CRC = 95 B0
--> FILE: USQ-15 .COM CRC = FE 42