Flycast - NAOMI: Unable to play games

Libretro Cores
#1

I’ve setting up RA for the last couple of days. Everything has been going smoothly…until i ran into configuration problems with NAOMI (Flycast). I just can’t figure out what i’m doing wrong. My BIOS location and md5 are correct, but every single game i tried gave me some type of error:

  • Toy fighter (MAME romset): Boot to NAOMI Bios, then stuck into loop. Can’t do anything outside testing

-Toy fighter (.dat file): Same problem

  • Slashout (.chd file): ERROR-01 THIS GAME IS NOT ACCEPTABLE BY MAIN BOARD. I straight up don’t know what’s the problem here. Maybe i’m placing the .zip + CHD in the wrong location?

  • Virtua NBA: Boot to bios, stuck in a loop. Tried to change regions, etc, nothing works

What’s happening here? help! @hunterk

#2

Not sure what’s going on here. These games are supported.

For slashout, put the CHD in a folder with the same name as the zip:

slashout.zip

slashout/gds-004.chd

#3

I tried to run Toy fighter again and it still boot into the NAOMI bios:

1213×910
1213×910

I tried changing the region and different MAME roms, but with no luck. I’m stuck in the boot - bios - boot loop.

In the case of slashout, after following your advice, i get ERROR 01:

1143×857

I honestly don’t know what i’m doing wrong

PD: By the way man great work with the Dreamcast core, i’m a big fan of the console and being able to play most of them again it’s like a dream to me! thank you

#4

Error 01 should be because of wrong (or misplaced) romsets, make sure you are using naomi.zip + slashout.zip + gds-004.chd from latest MAME. Assuming your paths are correct (gds-004.chd inside a subfolder slashout in the same folder as slashout.zip), are you loading the romsets from some “weird place”, or from local disk ? I remember fixing a similar issue when loading from a NAS a long time ago.

For Toy Fighter, since it hangs after loading the game, i would suspect a bad eeprom maybe ? Try deleting toyfight.zip.nvmem & toyfight.zip.eeprom, they should be somewhere in your savefiles for this core.

#5

Tried toy fighter from mame 0.209. Still stuck in the system menu options, even after deleting both .nvmem and .eeprom files from the save folder under reicast/flycast. I just won’t load

I understand that Toy Fighter doesn’t use .chd files but the MAME romset instead, so maybe that’s part of the problem?

Slashout it was indeed a misplaced path. It works properly now!

#6

Ok, i just noticed after looking at your screenshot above that you never mentioned something : you are using the 15k dipswitch. 2 things to know about that dipswitch :

  • it has yet to prove its worth, afaik there is only one game (waverunner gp ?) that’s changing based on that setting (switching from 480p to 480i, i don’t understand the point but since it was requested…)
  • in the case of toy fighter, it seems to indeed cause your issue

Basically, disable this core option, and i would recommend to try games at default settings before changing them.

#7

After the feedback in this thread in can confirm that everything it’s now working properly! i even tried some NAOMI GD Roms and they work too

Let this thread be a guide for anyone who needs to troubleshoot with NAOMI on RetroArch!

Thank you guys for you answers