fast crc routine

[caf at omen.UUCP]

In article <68 at hyper.UUCP> mark at hyper.UUCP (Mark Mendel) writes:
:To encourage the use of CRC's, I am posting a FAST crc calculator.  It is
:set up to calculate the CRC used by the popular XMODEM protocol.  This routine
:is at least 5 times as fast as the one used by rb, a recectly distruted XMODEM 
:program for unix.
:
The recently posted new "updcrc" routine has a different calling sequence
than the updcrc() routine used by the rb, rs, sb, and sz programs.

I shall be testing this new routine this weekend, and assuming I find no gotchas
will post new versions of rz and sz that incorporate it.  (rz and sz support
ZMODEM protocol as well as the XMODEM and YMODEM protocols supported by rb and
sb).

   Chuck Forsberg WA7KGX  ...!tektronix!reed!omen!caf   CIS:70715,131
   Author of Professional-YAM communications Tools for PCDOS and Unix
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