MSX-C — A new, low-cost MSX Turbo R computer!

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By psxdev

Resident (45)

psxdev의 아바타

08-04-2021, 18:43

zilog ez80 can go to 50Mhz

Multiprocessor could be an option perhaps like old victor/jvc models. They were using Z80A processor from NEC (PD780C-1) at 3.58 MHz and a Z180 (HD64180) at 6.144 MHz. More complex but perhaps for a "legacy" mode could be an option.

konamiman do you know status of the new arm/msx from mr Nishi? No updates in his blog nishi.org lately about it.

By erpirao

Paragon (1190)

erpirao의 아바타

08-04-2021, 21:31

the eZ80 is unusable in MSX, at least as a main processor, key access ports to the system are occupied by the built-in peripherals.
The issue of victor's hd64180 is almost worse, as it lacks part of the instructions, there is software that directly gives me an execution error, as is the nextor.
the victor hc-90, like normal msx2 is fine, and has really amazing audio output, but to use turbo mode, you better forget it.

however, I agree with psxdev, you can mount a z80 @ 20 and a "new" processor, or even go easy and mount a zilog z280 @ 12mhz (25mhz internals), as sharkshym has achieved.
slt turbo: msx2+ to turboR extension

By ren

Paragon (1811)

ren의 아바타

09-04-2021, 11:56

Hi, haven't read everything (yet), some small things:

The name 'MSX-C' seems unfortunate (+ somewhat lackluster) to me. Unfortunate as in confusion w/ the C programming language + it might be problematic to use the 'MSX' name and logo at all?

Nitpick: Panasonic was the only manufacturer of Turbo R computers for consumers (see
Aucnet NIA-2001).

Cheers :)

By JEckert

Rookie (22)

JEckert의 아바타

09-04-2021, 18:42

A lot of talk about how to implement MSX in an FPGA, and what compromises to make. There's more to a project than just hardware however. MSX-C also plans to open an online marketplace for publishers to release their MSX software digitally. I would think that would get attention as well, since that means getting big name publishers on board. I expect a lot of reservation from a lot of you about that.

By st1mpy

Paladin (779)

st1mpy의 아바타

09-04-2021, 19:00

For an app store to be attractive to a developer to sell their game, there has to be a big user base, which msx-c will not have (as this market place excludes all other existing msx machines/users).
I think if this is your interest, a mega rom flash cartridge with wifi connectivity to Internet based app store with authentication on purchased roms would be better (so that it works on all existing msxs). Then developers can sell their digital copies of the games playable on this cartridge knowing it can't be copied and distributed. (It should also support disk games).
As for big publishers, they won't be interested. May be if it is successfull, may be talk to D4 enterprise.

By konamiman

Paragon (1131)

konamiman의 아바타

09-04-2021, 22:19

Quote:

A lot of talk about how to implement MSX in an FPGA, and what compromises to make. There's more to a project than just hardware however. MSX-C also plans to open an online marketplace for publishers to release their MSX software digitally.

I think that at such an early stage of the project this is a normal thing to happen: the hardware design is a vital part of the project and it's very important to get it right since it's something that's not easily changeable afterward. Anything that is to be implemented in software, however, can be just roughly defined at first and then developed in an iterative way as long as the hardware platform supporting it is solid.

By konamiman

Paragon (1131)

konamiman의 아바타

09-04-2021, 22:22

psxdev wrote:

konamiman do you know status of the new arm/msx from mr Nishi? No updates in his blog nishi.org lately about it.

Absolutely no idea. I was barely able to contact him via Facebook to confirm the license terms for publishing the sources of Nextor shortly after we met back in 2018, and I haven't heard anything from him, or about that project, since then.

By konamiman

Paragon (1131)

konamiman의 아바타

09-04-2021, 22:37

ren wrote:

The name 'MSX-C' seems unfortunate (+ somewhat lackluster) to me. Unfortunate as in confusion w/ the C programming language + it might be problematic to use the 'MSX' name and logo at all?

I agree that it's not the best name, more for the confussion+lackluster thing than for any possible legal problems (which for example the MSXVR project hasn't had). I'm sure there's a better way to convey the "low cost MSX" idea with a more catchy name and we could eventually find it. Smile

By AxelStone

Prophet (2962)

AxelStone의 아바타

10-04-2021, 09:47

+1 to change the name. MSX-C is already used by MSX C programming language, it's very confused to have 2 different things with the same name.

By hamlet

Scribe (3594)

hamlet의 아바타

10-04-2021, 09:57

In keeping with old Apple traditions, you could call it Elsie.
But I have no hope that any major publishers will get involved.
It is not the market to make money business.

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