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Re: Jotego Confirms CPS3 / PGM / Mortal Kombat
Posted: Tue Nov 23, 2021 10:13 pm
by Mr. Encyclopedia
The main problem with the N64 is the 250Mhz memory bus. Only the DDR3 memory on the DE10-nano is fast enough to handle that, but because it's behind the HPS (Arm) side there's inbuilt latency that's a huge challenge to overcome. It's not impossible, but it's a more significant challenge than just about anything else that's ever been attempted, and there's a good chance that even the best effort would result in something less than a perfect recreation of the original hardware.
Re: Jotego Confirms CPS3 / PGM / Mortal Kombat
Posted: Wed Nov 24, 2021 1:56 pm
by madmax
I m curious how Jotego will handle the weird refresh-rate of MK arcade board. it runs at around 54hz.
On a CRT monitor, its not an issue, they can handle it perfectly but with LCD monitors, until Freesync/G-Sync/VRR/Adaptive sync (so many names..lol) was a thing, you had to choose between stuttering vertical screen or squeeking turbo sub-zero by forcing "match monitor refresh rate" option...lol.
can MiSTer makes use of adaptive sync monitor and send something else than 50hz/60hz on the HDMI?
Re: Jotego Confirms CPS3 / PGM / Mortal Kombat
Posted: Wed Nov 24, 2021 2:03 pm
by Neocaron
madmax wrote: ↑Wed Nov 24, 2021 1:56 pm
I m curious how Jotego will handle the weird refresh-rate of MK arcade board. it runs at around 54hz.
On a CRT monitor, its not an issue, they can handle it perfectly but with LCD monitors, until Freesync/G-Sync/VRR/Adaptive sync (so many names..lol) was a thing, you had to choose between stuttering vertical screen or squeeking turbo sub-zero by forcing "match monitor refresh rate" option...lol.
can MiSTer makes use of adaptive sync monitor and send something else than 50hz/60hz on the HDMI?
It's the case for a few arcade games that have odd refreshes, like Dodonpachi. So I expect that a 50hz, or 60hz mode should be possible.
The ipad screen I have can accept any refreshes from 48 to 62 natively, so that should be fine for me anyway
Re: Jotego Confirms CPS3 / PGM / Mortal Kombat
Posted: Wed Nov 24, 2021 10:27 pm
by softtest9
madmax wrote: ↑Wed Nov 24, 2021 1:56 pm
can MiSTer makes use of adaptive sync monitor and send something else than 50hz/60hz on the HDMI?
The MiSTer has no concept of VRR, but if you can select the refresh rate manually in Windows, it should work fine with the MiSTer as well. The MiSTer is not restricted to 50/60hz.