Thank you for error correcting my memory, John! I probably confused it with the Model 100's Disk/Video Interface (DVI or MVT100). Or am I misremembering that, too, and it does have the screen mapped to RAM somewhere?
--b9 P.S. Twospruce's MVT100 is here: https://bitchin100.com/wiki/index.php?title=VT100 BTW: at the bottom it says the high-ASCII extended character set doesn't exist and suggests upscaling from the Model 100's 5x8 font to 6x12 for VGA. If that hasn't been done yet, there may be a better starting point using the original DVI 8x8 font: https://github.com/robhagemans/hoard-of-bitfonts/blob/master/kyotronic/trs80-dvi-8x8.yaff On January 18, 2026 12:03:40 PM PST, "John R. Hogerhuis" <[email protected]> wrote: >"Again IIRC, the Tandy 200 can’t do that because the screen memory is >stored in the LCD driver chips, right?" > >No, that is incorrect. True, the *pixel image* is not stored in RAM, just >in the lcd hardware. But there are two RAM areas where the ASCII characters >are maintained, LCD and ALTLCD (for restoring after switching control >modes in TELCOM). >https://bitchin100.com/wiki/index.php?title=Model_T_Cross_Map_RAM_Variables > >So I think you should be good for your port. No faking needed. > >-- John.
