[Coco] Color Forth Help Request

[Stephen Pereira]

Of course, I meant to say, “Am I doomed to purchasing a 6809 and installing that instead/“ in the next to last line…

smp
--
Stephen M. Pereira
Bedford, NH  03110
KB1SXE

> On Feb 20, 2015, at 5:20 PM, Stephen Pereira <spereira1952 at comcast.net> wrote:
> 
> Hello again, all,
> 
> I am happy to say that I am one of the lucky ones who was able to get one of the last CoCo 3 systems from Cloud-9 - I got a fully tricked out CoCo 3 with a Pro-Tektor, a 6309 processor, and the Triad 512K RAM upgrade (Thanks a million for a great machine, Mark!).
> 
> I discovered a problem (for me):  My Color Forth code does not run properly on this machine!  What I found is that I can LOADM”CC-FORTH” and EXEC just fine.  I can issue Color Forth commands (although I have not attempted every command) and things seem OK.  I can issue my added DIR or BASIC commands, and those works well.  Then I try to load a file of Forth screens with my LSCR command.  Upon execution of that command, the CoCo goes off into never-never-land.  Usually, the machine simply goes off and never returns.  It does not access the disk, it just disappears.  Sometimes I get a beautiful screen of scrambled graphics, but not usually.
> 
> I had the bright idea to try all this on my VCC emulator.  The 512k RAM does not make any difference.  Color Forth runs just fine.  However, when I change the CPU to be a 6309, VCC fails in exactly the same way as I described above on my real system.  Actually, on VCC, when I execute the LSCR command with a filename, I get a blank green screen with an S in the upper left hand corner, as if the machine is trying to load a cassette file.  Since I removed all the cassette file code from the Color Forth source code, I am puzzled why this screen appears.
> 
> I am puzzled by this altogether.  Why should the 6309 not work like the 6809, if it is supposed to be code compatible?
> 
> I would like to hear from anyone who may be able to assist me in figuring out why my code that works fine on a CoCo with a 6809 does not work on a CoCo with a 6309.  Am I doomed to purchasing a 6890 and installing that instead?
> 
> Thanks very much for listening!
> 
> --
> Stephen M. Pereira
> Bedford, NH  03110
> KB1SXE
> 
> 
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