On 2016-Aug-16, at 9:55 AM, Brad H wrote: > Thanks Brent. So when I hit the end of an 'S' record line.. is it just a > Line Feed I need to go to the next? Or just type the next S record right in > behind it?
Either should be OK, an S record is terminated by the number of bytes in the byte count field and the monitor should be ignoring CR/LF in-between S records. > Also curious about how you type S records at the monitor prompt. I'm > reading and trying to figure out how to do that. In the same manner as being discussed, after starting an L command. You typically aren't going to want to formulate your own S records other than as an exercise, the point was just that it is possible - it's all just ASCII text. Bill's method, of executing an M command from a text file, achieves the same thing: filling memory. Something it's missing versus the S-record/loader format method is a checksum or any data check. One may may not be concerned about line noise over a short RS-232 line, but if there are problems like dropped characters, receivers overruns, framing errors, etc., due say to speed or line config issues the M command method isn't going to tell you about it, while the S-record method will/should (in most cases) report a data error. > Many thanks! > > Brad > > -----Original Message----- > From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Brent > Hilpert > Sent: Tuesday, August 16, 2016 9:29 AM > To: General Discussion: On-Topic and Off-Topic Posts <cctalk@classiccmp.org> > Subject: Re: SWTPC 6800 > > Yes, the monitor just sees bytes coming at it, it can't distinguish whether > they're typed or coming from a host/machine, as long as the byte sequence > accords with the Motorola S record format. > > You can formulate your own S records and type them at the monitor, too. > > > > On 2016-Aug-16, at 9:09 AM, Brad H wrote: > >> Another question if I may -- for a short TXT loader file.. could I >> manually enter the information contained therein with my terminal? >> I'm just thinking for a quick memory test, etc -- it'd be six of one >> half a dozen of the other in terms of time to hook up a PC terminal and > send the file.. >> >> If I were to hit L to put the 6800 into load mode, could I then just >> type out the contents of the loader file with the CT1024's keyboard?