V9990 is not part of MSX

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Por Ivan

Ascended (9330)

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15-01-2022, 10:16

Manuel wrote:

My humble opinion: if you think along the lines of MSX2 or MSXturboR, and especially if you hear this story, for me it becomes even clearer, that if you would want to extrapolate what was commercially released to MSX3, it would be an MSXturboR with a V9990 (it's the closest actually released silicon to what you have to the unfinished V9978). The OPL4 also makes sense, as it is/was a follow up to the OPL chips that were part of the standard.
So, to me, if we speak about MSX3, the most logical thing is MSXturboR with V9990 and OPL4. Ideally, to make this combination more like what would/may have been the V9978, the V9958 of the turboR should be superimposed on the V9990. This is the only missing thing, at least not something easy to get.

OK, that's my dreaming Smile

The fact that Mr Nishi rejects V9990 is more like a personal thing, I think, as is pretty clear from his story. And yeah, I understand that it reminds him of some bitter times that he'd rather forget.

I agree 100%. And he is confirming to us that the V9990 is MSX related. And I'm happy that the MSX community has embraced this VDP (since 1994!). It is nice to see, at last, 16-bit era games running on our machines. Kai's Metal Dragon port to Megadrive/Genesis has shown how good the V9990 is. Both versions are almost identical (well, the MSX one uses more colours on screen at once Smile):

Metal Dragon MSX
Metal Dragon Megadrive/Genesis

And the game even runs at an acceptable speed on a bare bone Z80 MSX2 (yes, 8-bit computer with a Z80 3,58MHz CPU and only 64kB of RAM): Metal Dragon MSX (Z80).

Por LaDolceDols

Resident (57)

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15-01-2022, 10:40

The V9990 and OPL4 are hobby projects that came to life. It has nothing to do with the MSX standard. There is a market for V9990 and/or OPL4 projects, but that are different things. It's about pimping a machine. It's like putting a Ferrari motor in a Fiat car; those are fun hobby projects, there are subgroups in our MSX society that like to work with it, but that not makes it a standard. So I understand Nishi doesn't support it.

Por TotO

Rookie (24)

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15-01-2022, 10:50

Well... So, the Turbo-R was at less able to use two V9958 to provide background parallax and twice sprites and palettes... But they don't and only used a faster CPU.

The V9990 was produced, so the MSX3 was able to be V9958 + V9990 overlay.
Sad to have graphic expansions based on it that do not use this feature to display all on the TV set.

Por Ivan

Ascended (9330)

Imagen del Ivan

15-01-2022, 10:56

@LaDolceDols I don't see it exactly that way. The V9990 and OPL4 are MSX contemporary (TurboR machines were produced until 1994) and both from the same company that made other MSX VDPs and sound chips.

Por ivke2006

Expert (84)

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15-01-2022, 10:57

I think the people reacting so negative on Nichi’s statements are biased themselves.
They probably spend time/money buying v9990 and/or developing the hardware/software.

But Nishi is right..MSX Turbo-R is the latest official MSX standard until now and is the baseline to develop further on.
V9990 is just an expansion cartridge like SCC. Popular but not part of the MSX standard.

Spending his limited resources adding complexity by adding a 30 years old VDP that was never part of the official MSX standard is just very unwise.

So Mr. Nishi has my full support! (Worth nothing but still Smile )

Por mars2000you

Enlighted (6345)

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15-01-2022, 11:00

Master word for MSX is retro-compatibility. It's not the case of V9990 and the superimpose option is expensive. When you add the facts about this chip, that Nishi has clearly exposed, I perfectly understand his decision.

Por wolf_

Ambassador_ (10028)

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15-01-2022, 11:05

Whether or not the v9990 is official or not, it was quite needed, and is still needed I'd say. It solves a lot of things that are annoying and difficult to do with MSX2. It's just that no-one's using it. It's like people who keep voting for the wrong politicians and then complain they get bad politics. Wink

Por mars2000you

Enlighted (6345)

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15-01-2022, 11:22

More recent info given by Kay Nishi:

"our new video will be called perhaps most likely V9998 and I will be much much much better than 9990. and I hope you like that and buy the new system."

Por wolf_

Ambassador_ (10028)

Imagen del wolf_

15-01-2022, 11:32

Any ounce of success depends on how many people will have it and how many people will develop for it. If twenty people will have it, and barely one develops for it, Nishi can likely forget about it.

Por PingPong

Prophet (3966)

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15-01-2022, 11:48

mars2000you wrote:

More recent info given by Kay Nishi:

"our new video will be called perhaps most likely V9998 and I will be much much much better than 9990. and I hope you like that and buy the new system."

A lot of Blah, Blah.
But the reality is that without a V9990 the TurboR is like a lame horse given the limitations of V99x8 in terms of speed and mangled design decisions that affects the V99x8 architecture.

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