Sega Saturn Core in Development

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neogeo81
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Re: Sega Saturn Core in Development

Unread post by neogeo81 »

strange. do you use the multinorm 1.01 bios?

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Alkadian
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Re: Sega Saturn Core in Development

Unread post by Alkadian »

neogeo81 wrote: Fri Jul 07, 2023 9:44 am

strange. do you use the multinorm 1.01 bios?

I am using Japan 1.01 with SHA1 49d8493008fa715ca0c94d99817a5439d6f2c796 as indicated on the GitHub page:

https://github.com/srg320/Saturn_MiSTer

Thanks.

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Re: Sega Saturn Core in Development

Unread post by ghorricks »

I'm coming to the conclusion from watching plenty of YouTube videos and being an old hand with MiSTer, that the differences we are experiencing once we have some games loading and some not, is that we have different RAM module versions (as other hardware likely doesnt matter), or that the Mister INI settings we're all using are likely different and causing the variety of loading problems.

Sega Rally (White Screen on Load)
Out Run Jap (incl Rev 1 shows black screen after loading splash)

Pixel Cherry Ninja's setup, clearly loads these game - but even following the same procedure to the last detail here isn't getting me the same results.
Yes, the core works and some games load - but I get different results from others so am seeking any definitive advice.

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Re: Sega Saturn Core in Development

Unread post by ghorricks »

Tried deleting my MiSTer.ini, so that it would not be an issue. But still the same issues with those 2 games.
I use auto update, so I cant imagine that other software is out of date or wrong... I will try a fresh Micro SD setup with just the minimum on there.

EDIT - Fresh Install, no additional hardware (HDD, Wifi, BT, Midi)

With the lastest Saturn 2nd July, and the lastest stable Mister and Main, the issues of loading certain games still persists. OutRun still Shows "NOW LOADING OUTRUN" with some minor flickering in that text specifically. The only relevant thing I can now think may be the issue is the 128MB ver 2.5 module which is installed.

EDIT : Ordered "MiSTer SDRAM XS-DS v3.0 128MB Module" from misterfpga .co.uk - Lets hope this helps.

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Re: Sega Saturn Core in Development

Unread post by Alkadian »

ghorricks wrote: Sat Jul 08, 2023 4:29 pm

Tried deleting my MiSTer.ini, so that it would not be an issue. But still the same issues with those 2 games.
I use auto update, so I cant imagine that other software is out of date or wrong... I will try a fresh Micro SD setup with just the minimum on there.

EDIT - Fresh Install, no additional hardware (HDD, Wifi, BT, Midi)

With the lastest Saturn 2nd July, and the lastest stable Mister and Main, the issues of loading certain games still persists. OutRun still Shows "NOW LOADING OUTRUN" with some minor flickering in that text specifically. The only relevant thing I can now think may be the issue is the 128MB ver 2.5 module which is installed.

EDIT : Ordered "MiSTer SDRAM XS-DS v3.0 128MB Module" from misterfpga .co.uk - Lets hope this helps.

Thanks for the update. Please let us know how you get on with the new SDRAM module.

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Re: Sega Saturn Core in Development

Unread post by ghorricks »

The new v3.0 SDRAM has solved the problem.
It was the only change made to my config and now much more games work.
For starters, When loading a CUE file... it now goes to the CD Player in the BIOS.... before it booted the game directly.
OutRun now doesnt have any speckles/noise around the "NOW LOADING OUTRUN".

So it is clear for me at least that the spec of the 2.5 SDRAM is impacted by the Saturn core expectations.

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Re: Sega Saturn Core in Development

Unread post by Alkadian »

Good news indeed! Thanks for the update! Could you please confirm that Radiant Silvergun is also working with the new v3.0 SDRAM?

Thanks.

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Re: Sega Saturn Core in Development

Unread post by ghorricks »

Radiant Silvergun - I get a Black Screen after SEGA Logo, soon after launching application from the CD Player screen.
JAP 1.01 BIOS.
JAP 1.02 BIOS (HI Saturn, Bios now boots with sound)

Virtua Racing now boots past the flag video and the game plays. Sound is more stable in many more games.
Clearly the Saturn Core is impacted by SD RAM quality and/or version.

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Re: Sega Saturn Core in Development

Unread post by Alkadian »

ghorricks wrote: Wed Jul 12, 2023 1:50 pm

Radiant Silvergun - I get a Black Screen after SEGA Logo, soon after launching application from the CD Player screen.
JAP 1.01 BIOS.
JAP 1.02 BIOS (HI Saturn, Bios now boots with sound)

Virtua Racing now boots past the flag video and the game plays. Sound is more stable in many more games.
Clearly the Saturn Core is impacted by SD RAM quality and/or version.

Thanks. So no real change with the new SDRAM.

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Re: Sega Saturn Core in Development

Unread post by ghorricks »

haha, not for that game from what you're saying.
BUT in terms of stability, v2.9 + seems to be better than 2.5

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Re: Sega Saturn Core in Development

Unread post by neogeo81 »

New updated core

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Re: Sega Saturn Core in Development

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Latest official build, straight from Github. Please support Sergiy!

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Re: Sega Saturn Core in Development

Unread post by Waifu4Life »

Can't get the saves to work and I keep getting a message in my games saying that the memory is full. What am I doing wrong?

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Re: Sega Saturn Core in Development

Unread post by ntt »

Didn't have time to test this latest release yet, it may well be more unstable than usual...

the_importer wrote: Thu Aug 10, 2023 5:38 pm

Can't get the saves to work and I keep getting a message in my games saying that the memory is full. What am I doing wrong?

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Re: Sega Saturn Core in Development

Unread post by capitaineflam25 »

You need MiSTer binary unstable in order to make the saves works.

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Re: Sega Saturn Core in Development

Unread post by Beeble »

the_importer wrote: Thu Aug 10, 2023 5:38 pm

Can't get the saves to work and I keep getting a message in my games saying that the memory is full. What am I doing wrong?

Enter the Saturn Menu go to Settings. Clear your memory there (No entry, but also no free space available) and after deleting it shows 400 something blocks free. Savegames worked for me afterwards. (Tested with Bulkslash (eng. patched) which complained while booting until I cleared the Saturn Memory.)

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Re: Sega Saturn Core in Development

Unread post by jordi »

mmm all I get is a blackscreen. japanese bios 1.01

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Re: Sega Saturn Core in Development

Unread post by FPGA64 »

jordi wrote: Thu Aug 10, 2023 7:07 pm

mmm all I get is a blackscreen. japanese bios 1.01

Rename your boot.rom to boot.bin. Load the core, load the bios from the menu. If you have any boot.rom the core wont work

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Re: Sega Saturn Core in Development

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With that it works for me thanks

FPGA64 wrote: Thu Aug 10, 2023 7:22 pm

Rename your boot.rom to boot.bin. Load the core, load the bios from the menu. If you have any boot.rom the core wont work

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Re: Sega Saturn Core in Development

Unread post by Waifu4Life »

Beeble wrote: Thu Aug 10, 2023 6:12 pm

Enter the Saturn Menu go to Settings. Clear your memory there (No entry, but also no free space available) and after deleting it shows 400 something blocks free. Savegames worked for me afterwards. (Tested with Bulkslash (eng. patched) which complained while booting until I cleared the Saturn Memory.)

Yeah, this sort of works, but when I turn off the MiSTer, I lose everything and the memory goes back to 0 blocks. Also, is it normal that the save options are always grayed out and that I need to reload the Saturn BIOS after a power cycle?

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Re: Sega Saturn Core in Development

Unread post by FPGA64 »

the_importer wrote: Fri Aug 11, 2023 2:17 am
Beeble wrote: Thu Aug 10, 2023 6:12 pm

Enter the Saturn Menu go to Settings. Clear your memory there (No entry, but also no free space available) and after deleting it shows 400 something blocks free. Savegames worked for me afterwards. (Tested with Bulkslash (eng. patched) which complained while booting until I cleared the Saturn Memory.)

Yeah, this sort of works, but when I turn off the MiSTer, I lose everything and the memory goes back to 0 blocks. Also, is it normal that the save options are always grayed out and that I need to reload the Saturn BIOS after a power cycle?

You also must be running the unstable Mister Main from Discord.

or

https://github.com/MiSTer-unstable-nigh ... 808_1968f4

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Re: Sega Saturn Core in Development

Unread post by Waifu4Life »

FPGA64 wrote: Fri Aug 11, 2023 6:38 am
the_importer wrote: Fri Aug 11, 2023 2:17 am
Beeble wrote: Thu Aug 10, 2023 6:12 pm

Enter the Saturn Menu go to Settings. Clear your memory there (No entry, but also no free space available) and after deleting it shows 400 something blocks free. Savegames worked for me afterwards. (Tested with Bulkslash (eng. patched) which complained while booting until I cleared the Saturn Memory.)

Yeah, this sort of works, but when I turn off the MiSTer, I lose everything and the memory goes back to 0 blocks. Also, is it normal that the save options are always grayed out and that I need to reload the Saturn BIOS after a power cycle?

You also must be running the unstable Mister Main from Discord.

or

https://github.com/MiSTer-unstable-nigh ... 808_1968f4

That was probably the issue. But tell me, why wasn't posted here: https://github.com/MiSTer-unstable-nigh ... r/releases

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Re: Sega Saturn Core in Development

Unread post by pgimeno »

the_importer wrote: Fri Aug 11, 2023 1:09 pm

That was probably the issue. But tell me, why wasn't posted here: https://github.com/MiSTer-unstable-nigh ... r/releases

That directory should never have existed in the first place. That's not how binaries are supposed to be distributed; the Releases feature of GitHub is there for that very purpose. The MiSTer-unstable-nightlies repository owner is doing the right thing. It's a burden to have to download every binary version of a core when you clone a repository, which should only hold the sources.

I suspect that's why the Distribution_MiSTer repository was created: to get rid of that problem (although nothing has happened yet).

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Re: Sega Saturn Core in Development

Unread post by Swainy »

I keep getting CD BIOS not found! pop up on some games. Can anyone advise please?

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Re: Sega Saturn Core in Development

Unread post by Schyz »

Swainy wrote: Sat Aug 12, 2023 8:01 am

I keep getting CD BIOS not found! pop up on some games. Can anyone advise please?

In which folder did you put the Saturn BIOS file?

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Re: Sega Saturn Core in Development

Unread post by Swainy »

Schyz wrote: Sat Aug 12, 2023 9:04 am
Swainy wrote: Sat Aug 12, 2023 8:01 am

I keep getting CD BIOS not found! pop up on some games. Can anyone advise please?

In which folder did you put the Saturn BIOS file?

It’s in my Saturn games folder.

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Re: Sega Saturn Core in Development

Unread post by pbsk8 »

Swainy wrote: Sat Aug 12, 2023 8:01 am

I keep getting CD BIOS not found! pop up on some games. Can anyone advise please?

Same here, So I always run the boot bin file first, then I select the cue file for the game, at least the game runs like this, but some like guardian heroes I get black screen after fmv intro.

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Re: Sega Saturn Core in Development

Unread post by gambleboyen »

It's been a while since I tried this core, but it seems I'm not the only on that have gove from some games running to no games running after some updates.

Just so that I'm not trying and retrying things that are obviously wrong:

Is it the .cue files we should start when loading a game (that gives me a black screen, bin files give me the Saturn disc menu)?
Is there some specific bios files we should use now, or should the ones that worked a few months ago still work?
Is it best to throw the bios files into the game directories so as to avoid conflict with any such stored in the games/Saturn folder?

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Re: Sega Saturn Core in Development

Unread post by ntt »

For me the usual bios files still work, after renaming then to .bin and updating mister to the latest version.
Games still work in general, even though every new core version seems to bring some regression side effects.
Honestly I've not followed recent evolutions of the Saturn core with the same level of attention as in the past, though.

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Re: Sega Saturn Core in Development

Unread post by FPGA64 »

Firstly make sure you have no boot.rom. If its even present the Core wont work, Its best to rename boot.rom to boot.bin
When this is done the core will load, then go into the menu and manually load boot.bin
Load the games
Dont worry about cd_bios not found its irrelevent. The games will still work

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