For these interested on how it looked, I posted a picture of all the characters created by the HP 2641 APL ROM dumps here: https://www.curiousmarc.com/computing/hp-264x-terminals (somewhere down in the middle of the page). ROM dumps were from Al Kossow I believe (thanks Al). Marc
> On Dec 14, 2020, at 9:00 PM, Gavin Scott via cctalk <cctalk@classiccmp.org> > wrote: > > Now I want to know if you have a list of the Burroughs APL > overstrikes, since HP included many more overstrike characters in the > HP 2641A than the ones that they needed for APL\3000, including (or so > I'm lead to believe) all the Burroughs extended I/O quad overstrikes, > presumably to maximize the market for the terminal and/or because they > thought they might implement the same functionality at some point. So > it would be interesting to know what was actually missing. > > The overstrike character ROM for the HP 2641A includes 63 characters, > but (IIRC) only something like 21 are used in APL\3000. > > P.S. My HP 2641A emulation will be in the next official MAME release > thanks to F.Ulivi who merged it into his existing HP 2645A driver and > got it submitted upstream. > > G. > >> On Mon, Dec 14, 2020 at 10:28 PM Stan Sieler via cctalk >> <cctalk@classiccmp.org> wrote: >> >> That meant that we couldn't use the terminal at Burroughs, because our APL >> had a few overstrikes that weren't in the table.