SWTPC 6800

[Dave Wade]

Lets start with the easy bits. A quick google turned up some zips of S9 software but not sure if its 6800 or 6809....

http://www.flexusergroup.com/flexusergroup/fug5.htm

Now S1 records vsus using the monitor. 

If you are just typing yourself then getting a whole S1 record correct can be a problem. Using the Monitor memory modify lets you change a byte at a time and go back if you made a mistake.

When you saved to papertape or Audio Cassette (there were a number of formats as well as Kanasas City) You generally got S1 records.

Dave
G4UGM

> -----Original Message-----
> From: cctalk [mailto:cctalk-bounces at classiccmp.org] On Behalf Of Brad H
> Sent: 17 August 2016 00:20
> To: 'General Discussion: On-Topic and Off-Topic Posts'
> <cctalk at classiccmp.org>
> Subject: RE: SWTPC 6800
> 
> Okay this is where I was getting a bit confused -- I had gotten the impression
> that S1 records were essentially what was punched out on paper tape and
> that on loading back in, the teletype/paper tape reader was simply typing all
> this in as if someone was sitting there.  Looking at your TSC Basic file I see it
> invokes the memory examine and change function with the M and then
> starts at an address and just keeps going?
> 
> So when you had a program saved to a tape, these would have been S1
> records encoded in Kansas City format?
> 
> Is there a large collection of these loader files somewhere?  Or like a
> definitive list of major software developed for the 6800?
> 
> I'm hoping to learn more on how to program these things -- I'm assuming
> there was an assembler people used rather than just modifying memory
> addresses?
> 
> Thanks
> 
> Brad
> 
> -----Original Message-----
> From: cctalk [mailto:cctalk-bounces at classiccmp.org] On Behalf Of william
> degnan
> Sent: Tuesday, August 16, 2016 10:12 AM
> To: General Discussion: On-Topic and Off-Topic Posts
> <cctalk at classiccmp.org>
> Subject: Re: SWTPC 6800
> 
> Brad,
> 
> You don't type in S1 records at the monitor prompt.  If anything you'd want
> to download a text file that simulates monitor commands to load memory,
> but it's a lot slower.
> 
> I haven't been reading all of the posts in this thread, but have you tried
> following something like the instructions here to download a tape, I have
> documented how to use a terminal to download TSC BASIC into an SWTPC
> using a laptop serial port (or USB to Serial):
> 
> http://vintagecomputer.net/browse_thread_record.cfm?id=416&tid=2
> 
> b
> 
> On Tue, Aug 16, 2016 at 12:55 PM, Brad H <
> vintagecomputer at bettercomputing.net> 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?
> >
> > Also curious about how you type S records at the monitor prompt.  I'm
> > reading and trying to figure out how to do that.
> >
> > Many thanks!
> >
> > Brad
> >
> > -----Original Message-----
> > From: cctalk [mailto:cctalk-bounces at 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 at 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?
> >
> >