Zmodem PD 65c02 Source
Todd P. Whitesel <tod...@nntp-server.caltech.edu>
ta
...@pro-odyssey.cts.com (Joe Quilici) writes:
>In-Reply-To: message from shrin
...@Apple.COM
>I remember someone stating that Z-modem is impossible to do on an Apple //,
>mainly because it is a streaming protocol and the Apple can't directly
>write the incoming data to the HD; instead having to pause to write. Does
>your code automatically pause the send, load the data or save the necessary
>data, and continue sending?
At the risk of putting words in Andy's mouth, his code has to do one of two
things:
tell the other end to pause sending
just write to the disk and let the garbled packet be retransmitted
ANY micro using a disk controller that causes interrupt blackouts faces the
same choice, and in no way does it prevent one from implementing Zmodem. It
does put take a bite out of the maximum transfer rate though.
Todd Whitesel
toddpw @ tybalt.caltech.edu
