This led [grubbycoder] down the path of porting Sonic 2 for the Sega Master System (to the eZ80-based Ti 84+ CE. Selecting this particular graphing calculator came down to the raw specs matching ...
Added information about TMS9918 CRAM use on a GG. There are four versions of the VDP: 315-5124 - Used in the Mark III, Sega Master System . 315-5246 - Used in the SMS 2 and later versions of the SMS.