Dissecting the MSX Turbo-R exclusive chips

BTW, a dead Philips NMS-8255 would also be welcome, for its Sony superimpose chips: V7010, V7020, V7030 & V7040, and of course the S1985 and V9938.

Other broken boards containing the following chips will also be welcome:

- Texas Instruments TMS9918 VDP
- Toshiba T6950 VDP
- Toshiba T7937 (aka single-chip MSX-Engine)
- Hitachi HD64180 CPU
- Yamaha S3527 MSX-Engine
- Konami SCC
- Konami SCC+

And there's a non-MSX chip would be welcome too:

- Sega 315-5124 (Master System VDP)

Take a carefully look on the list of the beginning, together with the NMS-8255 chips.

Have you talked to Repair-Bas about this? I would imagine if anyone in the MSX Universe had spare or broken turboR parts, it'd be the Bas-Man.

And just out of curiosity, is this just for preservation purposes only or could this technically lead into this type of chip being manufactured again and possibly distributed / added to a One Chip MSX project in the future?

Edit: Also, which models of Hitachi MSX computers would have the following chip? - Hitachi HD64180 CPU I'm not sure if MisterSpin would feel up for this, but he does have a broken Hitcahi MB-H2 or MB-H21, I can't remember exactly which one, so if he has it it might not hurt to ask him. I know him personally, so as long as there is a good enough reason behind it, he might consider if he has one of these.

-Thomas

@SkyeWelse

No, I don't have Repair-Bas' e-mail... But don't he always read the forums here?

It's both for preservation and for reverse engineering. It can help a lot to improve the implementations on FPGA, for example. It also can help emulators: for example, a lot of interesting details and the exact ROM tables could be obtained when The OPL2 and OPL3 got decapsulated.

The Hitachi HD64180 CPU is related to the Z180 and was used on two premium MSX2 models from JVC (then Victor): the HC-90 and HC-95. Those were the very first MSX machines with native turbo.

@Manuel

Ops, sorry: it's the S3527.