Reply 40 of 58, by jhhoward
Nice work! I have dabbled with reverse engineering the SCI video drivers in the past and worked out the general layout but didn't know what all the functions were for. This is a really good reference for if anyone wants to write a future driver. I was previously thinking of making a driver to support the 640x400 monochrome mode from the Olivetti M24 as mentioned here. I have an old Toshiba T1000SE laptop which supposedly supports this mode on its monochrome LCD screen and could potentially have a better dithered mode than the stock 640x200 monochrome mode. Unfortunately I can't get the machine to switch on any more but if I ever get it working again then I might come back to this.
I suppose a 160x200 CGA composite mode would also be possible (looking like the AGI games) but text would probably be unreadable!