Articles tagged “TMS9918”
ColecoVision and TMS9918 Multicolor
One notable gap in my TMS9918 (video) emulation was its "Multicolor" mode. This mode broke the screen down into 4×4 pixel squares, resulting in a 64×48 grid. Each cell could be assigned a unique colour, giving you a crude bitmapped video mode. No Master System or SG-1000 software used this mode to my knowledge, which reduced the likelihood of it being supported at all (if I could't test it, how could I emulate it?) I was tipped off that some ColecoVision software made use of it, so set about emulating the ColecoVision.
SG-1000
I've added some support for the SG-1000, Sega's first? home video game console. The Master System's VDP is a modified TMS9918, and so most Master System games run in its extended 'Mode 4' setting. That was the only video mode, therefore, that I'd emulated in any form. For some reason, the older computer games are, the more charm they seem to have to me (maybe because the first games I played would have been on a BBC Micro, which certainly looked a lot more primitive than the Master System games I've been attempting to emulate thus far).