Re: CRC for Apple IIe

[tomk@pro-nsdapple.cts.com (Tom Kelly)]

In <4cguaq$5af@overload.lbl.gov> Ted de Castro <tdc@ehssun.lbl.gov> writes:

>Hi - I am trying to find a version of Cyclical Redundancy Check (CRC) program for 
>APPLE IIe.
>
>This program is available in many other platforms that I am familiar with - namely 
>CP/M, DOS, UNIX.
>
>I am transferring some files from old APPLE II media to DOS for permanent archiving 
>and I'd like the CRC program so I can verify the integrity of the transfer without 
>having to read each and every file after xfer.
>
>If this program doesn't exist in the APPLE IIe world - it should ... to that end I 
>can offer a programmer the source code of other versions - since it IS in the public 
>domain.
>
>The files I am transferring are from PRO DOS disks.
>
>Any help in finding a CRC program for APPLE II would be appreciated.
>
>Thanks.
>


All transfer protocalls use error checking of some sort, so what you seek
should not be needed.
Xmodem in fact uses as one of the error checking methods (XMODEM CRC)
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