The TRS-80 Journey Continues

Fred Cisin cisin at
Sat May 7 12:48:35 CDT 2022

On Sat, 7 May 2022, Bill Gunshannon via cctalk wrote:
> I had forgotten just how much fun the TRS-80's could be.
> At least for the moment I am giving up on trying to get
> a TEAC 55GFR to work and just grabbed a par of disks from
> one of my COCOs to work with.  I think one of the things
> I need to do is try to move all of my old 5.25" disks to
> 3.5" disks as I expect functional 5.25" drives and disks
> are just going to become rarer.  Maybe I should try the
> GreaseWeazle on them and see if it can image them.

You can image them with Dave Dunfield's 765 utilities; GreaseWeazel 
hardware isn't necessary.

Trakcess, by Roxton Baker, is a BASIC program for TRS80 (including 3/4) 
that provides sector and track viewing and editing.  Trivial mods are 
needed to it for double sided.  Looking at the code of it is an extremely 
easy way to learn how to to controller level actions on the 3/4, if you 
don't already know.

> On another note, at one point my 4P failed to read from
> a floppy.  The "Cass?" prompt showed up followed by the
> "Memory" prompt.  I'm confused.  I thought the 4P didn't
> have any ROM in it.  Where could these prompts and an
> apparently functioning BASIC come from?

If I remember correctly (unrefreshed dynamic wet-ware), IFF you responded 
to those two prompts, THEN you got the BASIC, with the [cassette BASIC] 
version number.  Did you actually GET BASIC after you responded to them??

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