Hi Greg, I appreciate you testing it! Regarding compatibility with Optom ROM code, however, I doubt Ultrascreen would support it directly. It first depends on whether they use what's called a "trampoline" bounce to access the main system ROM's internal screen output and character input routines, or if they've implemented their own hardware control in the Option ROM. If they are using their own output routines and bypassing the system ROM through a trampoline, they'd be bypassing all of the hooks that Ultrascreen uses to interface with the display anyway.
Secondly, assuming Lucid uses the trampoline method to call into the system ROM for screen output, the Lucid spreadsheet itself I think only supports 40x8 screen size anyway, i.e. it doesn't even play nice with the Disk-Video Interface that gives you 80x25. (Maybe someone else can confirm.) So it may be you could work with the spreadsheet, but it would only make use of 40 columns by 8 lines of your nice 60x10 display. But, as they say, anything is possible in software with enough brute force engineering effort (i.e. support added to Ultrascreen, Lucid being disassembled and recompiled with tweaks, etc!) Gary On Tue, Sep 8, 2026 at 8:19 PM Greg Swallow <[email protected]> wrote: > Hey Gary, > > So happy to give this a try! I have not noticed if it was mentioned in > this thread, but how does UC stack up against the PCSG SuperROM and/or > Chipmunk drive with it's DOS? As well, the M100 in question also has the > SuperROM in in a PCSG ROM Bank with a Disk+ ROM. So I switch between those > two. I use the Lucid spreadsheet quit a bit on the M100, PC-DOS, and > Windows. Unfortunately the SuperROM and the DVI with its' DOS are other > than compatible so the M100 Lucid is not able to use the larger screen with > the DVI. UC would be an amazing boost to editing a spreadsheea on the M100. > > God Bless, > > Greg’s <>< > Sent from my iPhone > > On Sep 8, 2026, at 7:24 PM, Gary Weber <[email protected]> wrote: > > Back when I announced the availability of this in 2007, you may have given > Ultrascreen100 a try on your Model 100, but set it aside because TEXT felt > sluggish. Well, you might want to give it one more try. > >
