SMS core

https://github.com/MiSTer-devel/Main_MiSTer/wiki

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BitsNStuff
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Re: SMS core

Postby BitsNStuff » Tue Oct 30, 2018 10:48 pm

berighteous wrote:I can't get any games to load. Only boot loader screen. What's the trick? Am I missing something. The files are in my SMS directory.

Is your SDRAM installed correctly? The boot loader doesn't require SDRAM but you do need it for games. I don't like to tell people to be firmer with it but I had issues with mine and I do know other people did too as you do as you do have to be worryingly firm with it, I felt quite uncomfortable having to press it that firmly.

Do any of the other cores that require SDRAM work properly for you?

There is an SDRAM test you can run to check it, it's designed for faults but if if it's not connected fully you'll probably fail - https://github.com/MiSTer-devel/MemTest_MiSTer

berighteous
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Re: SMS core

Postby berighteous » Tue Oct 30, 2018 11:14 pm

Thats the problem. I forgot it needed to sdram. Still waiting for the board. Seems weird that SMS needs is when the Genesis doesn't.

Sorgelig
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Re: SMS core

Postby Sorgelig » Wed Oct 31, 2018 4:03 am

Genesis has more RAM making dependence on ROM timings less noticeable.
I plan to migrate to DDR3 and see if timings will be in acceptable range.

BlockABoots
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Re: SMS core

Postby BlockABoots » Thu Nov 01, 2018 10:04 am

That would great if it's possible, would this be possible on the NES core also?

Sorgelig
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Re: SMS core

Postby Sorgelig » Thu Nov 01, 2018 12:35 pm

SMS still heave some dedicated VRAM which gives some (only some!) chance to work with DDR3.
NES has only minimal RAM like 2KB if i remember correct. So NES uses ROM at 99% time, this DDR3 latency will break the timings.

If you need just consoles, then i suggest to buy Analog NT which can be hacked and more consoles can be added.
MiSTer is not console-centric project, and SDRAM board is absolutely required. There is no such target as try to avoid SDRAM usage. It's essential part of MiSTer and must be present.

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Newsdee
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Re: SMS core

Postby Newsdee » Thu Nov 01, 2018 2:45 pm

The Analogue NT mini is sold out and rare even second hand. A MiSTer with SDRAM is a much better option even if the project is not console centric.

Certainly it's great if some cores do not need SDRAM, but I think the available cores right now is enough to give new users something to be busy with (and test their boards) while they wait for an SDRAM expansion.

GreyRogue
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Re: SMS core

Postby GreyRogue » Wed Nov 14, 2018 5:52 am

Well, that wasn't too bad.

Just added support for Game Gear.
Tested with Tail's Adventure.
Pull request created.

albconde
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Re: SMS core

Postby albconde » Wed Nov 14, 2018 8:32 pm

Tested a Little gamegear .
In some games the second button dont work , for example bubble booble
Some games works but a little slow , for example james pond 2 robocod

Thanks for your work.

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Newsdee
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Re: SMS core

Postby Newsdee » Thu Nov 15, 2018 4:01 pm

Amazing! It's great to see these cores get some much needed dev love. Thanks!

PhantombrainM
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Re: SMS core

Postby PhantombrainM » Sun Nov 18, 2018 12:26 pm

Sorgelig wrote:hsync position will be adjusted in future release.


Games on VGA are still cut off on the left.
Two beer or not two beer? - Shakesbeer.

Sorgelig
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Re: SMS core

Postby Sorgelig » Sun Nov 18, 2018 1:23 pm

I forgot about it. Too many things to handle.
Hope to fix in the next release.

cacophony
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Re: SMS core

Postby cacophony » Sun Nov 18, 2018 11:07 pm

Not sure if it's a regression or not, but with the latest SMS core and mister binary I noticed what I guess is a sprite layering issue.

In Ghouls N Ghosts on the first stage, the blades that drop down are drawn behind the two wood posts instead of in front of them. Looks very odd :D

This is how they're supposed to look (starts at 52 seconds): https://www.youtube.com/watch?time_cont ... dozrRd4AyM

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Re: SMS core

Postby GreyRogue » Mon Nov 19, 2018 12:20 am

albconde wrote:Tested a Little gamegear .
In some games the second button dont work , for example bubble booble
Some games works but a little slow , for example james pond 2 robocod

Thanks for your work.

Fixed the second button.
Still some slow down going on. I'm not sure why yet.


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