Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!csd4.milw.wisc.edu!lll-winken!lll-lcc!pyramid!prls!gordon
From: gordon@prls.UUCP (Gordon Vickers)
Newsgroups: comp.os.cpm
Subject: Checksum program (was: Intel Hex Format Records)
Message-ID: <19564@prls.UUCP>
Date: 1 Mar 89 20:58:50 GMT
Reply-To: gordon@prls.UUCP (Gordon Vickers)
Distribution: usa
Organization: Philips Research Labs, Sunnyvale, California
Lines: 28


    FYI:
        I have a program (written in C ) that reads a file containing
     Intel Hex format records, verifies the checksum of each record
     and produces a file checksum for the data fields only (i.e. the
     kind of checksum an EPROM programmer may give you if it read a chip
     that contained the data only).

       I find this useful in two situtations:
        1) verify the programmer downloaded the file correctly,
        2) verify that data files transferred from the programmer to
           the computer arrived OK.  I like storing EPROM data online if
           it contains code that I don't maintain. If an EPROM goes bad,
           I don't need to buy one from the equipment manufacture, just
           burn a replacement.

   The program name is: cksum
   If there is a great enough respondce, I'll try posting it to the 
  appropriate newsgroup ( sources.misc or whatever it's called) else I'll
  send copies to all requesters.

    The program is written in a very easy to understand style and contains
  comments.

    cksum.c: 85  426  2926 (lines,words,bytes)

Gordon Vickers 408/991-5370 (Sunnyvale,Ca); {mips|pyramid|philabs}!prls!gordon
Every extinction, whether animal, mineral, or vegetable, hastens our own demise.