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Request ZX Uno port to MiSTer
Posted: Tue Dec 01, 2020 11:21 am
by jordi
I would love to see a ZX Uno Core on MiSTer.
Not just for having the commodities, but also UX, special modes, ...
Re: Request ZX Uno port to MiSTer
Posted: Tue Dec 01, 2020 5:31 pm
by antonie
SRAM / SDRAM conversion issue will crop up again...that's what tripped up a "clean" ZX Spectrum Next port.
Re: Request ZX Uno port to MiSTer
Posted: Wed Dec 02, 2020 8:59 am
by jordi
I asked for it and someone told me that it's possible (without SRAM)
Re: Request ZX Uno port to MiSTer
Posted: Wed Dec 02, 2020 11:05 am
by antonie
That would be interesting!
Re: Request ZX Uno port to MiSTer
Posted: Thu Dec 03, 2020 2:11 pm
by Newsdee
You mean specifically the ZX Spectrum core on the ZX Uno? Because that supported other cores too.
Also what is missing exactly?
Re: Request ZX Uno port to MiSTer
Posted: Thu Dec 03, 2020 9:18 pm
by jotego
There is enough internal RAM in the FPGA to avoid using the SDRAM on this core. So if that was the biggest problem, then it shouldn’t be a big deal.
I’m not doing it myself.
Re: Request ZX Uno port to MiSTer
Posted: Thu Dec 03, 2020 10:36 pm
by dshadoff
Newsdee wrote: ↑Thu Dec 03, 2020 2:11 pm
Also what is missing exactly?
A developer who is interested in porting this... unless somebody speaks up.
Re: Request ZX Uno port to MiSTer
Posted: Fri Dec 04, 2020 12:49 am
by Newsdee
dshadoff wrote: ↑Thu Dec 03, 2020 10:36 pm
A developer who is interested in porting this... unless somebody speaks up.
I mean in features versus the current core? Could be easier just to add to the existing core
Re: Request ZX Uno port to MiSTer
Posted: Thu Dec 10, 2020 11:25 am
by jordi
Newsdee wrote: ↑Fri Dec 04, 2020 12:49 am
dshadoff wrote: ↑Thu Dec 03, 2020 10:36 pm
A developer who is interested in porting this... unless somebody speaks up.
I mean in features versus the current core? Could be easier just to add to the existing core
esxdos, modo radastasiano, network support, ...
https://www.zxuno.com/forum/viewtopic.php?f=39&t=4099
Re: Request ZX Uno port to MiSTer
Posted: Thu Dec 10, 2020 5:16 pm
by Newsdee
Maybe expand the current core to add those features? Radastan mode is neat, that would unlock some interesting.games.
Anyway I'm glad the ZxUno is still active. I should try that SD card sometime on mine...
Re: Request ZX Uno port to MiSTer
Posted: Thu Dec 10, 2020 9:15 pm
by antoniovillena
I am one of the ZX-Uno founders and I think Jotego is our man. I've upgraded my patreon to Director so I will propose zx-uno as core to port to MiSTer. But I need support of other patrons to vote the polls.
Re: Request ZX Uno port to MiSTer
Posted: Thu Dec 10, 2020 9:21 pm
by benitoss
The Main problem of ZXUNo core is the data contained in the SPI Flash
In the SPI Flash the core reads:
- The ROMs
- The ESXDOS rom
- Several data configurations of the core
So, first we have to solve that part.
Re: Request ZX Uno port to MiSTer
Posted: Thu Dec 10, 2020 10:49 pm
by Miguel T80c
This ZX Spectrum core of the ZX-UNO would be a great contribution to the MiSTer project and perhaps we would obtain at the same time as this, a valuable SRAM driver that can be used for other future cores and not so future as ZX Next. I have no doubt about Jotego's ability to carry out this project.
Re: Request ZX Uno port to MiSTer
Posted: Fri Dec 11, 2020 7:41 am
by Lencio
It would be great to enjoy both cores in Mister (zxuno and next). it's a great fpga and it definitely deserves it!
Re: Request ZX Uno port to MiSTer
Posted: Fri Dec 11, 2020 10:50 am
by jordi
Re: Request ZX Uno port to MiSTer
Posted: Fri Dec 11, 2020 11:17 am
by Newsdee
benitoss wrote: ↑Thu Dec 10, 2020 9:21 pm
The Main problem of ZXUNo core is the data contained in the SPI Flash
In the SPI Flash the core reads:
- The ROMs
- The ESXDOS rom
- Several data configurations of the core
So, first we have to solve that part.
Can't you use the 2nd SD card in the MiSTer IO board for that?
Sure it's not ideal compared to loading it from the main filesystem, but it's a start.