Joe R. wrote:
Does anyone know what this is?
<http://home.cfl.rr.com/rigdon14/epc-7/hitachi.jpg> It's marked "Hitachi
model H40PC01". It has an alpha-numeric keyboard so I'm guessing that it
may be some kind of hand held terminal. There's a paper label on the
display that's marked "Page | Addr | A B X Y spx spy s/c".
A, B, X, Y, and two stack pointers sounds to me like the register
set of the 6809. But the two stack pointers are usually called
U and S (for User and System), so maybe it's something else.
Maybe 6800?
The terminal may have been used with a 6809 system and/or machine-code
monitor that always displayed register contents in those locations on
display.
--
John Honniball
coredump(a)gifford.co.uk