Date   : Thu, 08 Jan 1987 20:06:19 EST
From   : Manasseh Katz <MKATZ@umd2.umd.edu>
Subject: XMODEM

Does anyone have a good technical explanation of XMODEM ?  I want to
write my own program (I don't like the ones I've seen, and I'd have to
make some changes for my machine anyway), but I need the details - what
goes in each packet, how is the CRC calculated, etc.
                        Manasseh Katz
                        KATZM@UMDD.BITNET
                        MKATZ@UMD2.ARPA