Aucbvax.1810 fa.info-cpm utzoo!duke!decvax!ucbvax!W8SDZ@MIT-MC Thu Jun 18 07:46:55 1981 [William.Sholar: MODEM working!!] Date: 18 June 1981 1021-EDT (Thursday) From: Bill Sholar Sender: William.Sholar at CMU-10A To: Keith B. Petersen Re: MODEM working!! I managed to get the thing working, using the CPM system calls from PLINK, as I mentioned earlier. The problem with the bad sectors was that my subroutine to read a character stripped the parity bit, thus providing a guarenteed wrong header/checksum. It is a bit of a kluge, but it works. I used conditionals around all of the system calls to any MODCTLP, MODDATP, or MOD---- sympols, using IF TRS and IF NOT TRS, so that it may still be assembled for other things. As soon as I get a chance to xfer it over to the PDP-10, I'll let you or anyone else who might be interested know. Bill ----------------------------------------------------------------- gopher://quux.org/ conversion by John Goerzen of http://communication.ucsd.edu/A-News/ This Usenet Oldnews Archive article may be copied and distributed freely, provided: 1. There is no money collected for the text(s) of the articles. 2. The following notice remains appended to each copy: The Usenet Oldnews Archive: Compilation Copyright (C) 1981, 1996 Bruce Jones, Henry Spencer, David Wiseman.