MAMEWorld Forums - EmuChat - Re: Namco System 11/12 Bootup and Tekken 3

> Hello everyone
>
> First off, I just want to say thank you very much for attempting to make the Namco
> System 11/12 emulation better as each MAME version gets released. This particularly
> applies to the Soul Calibur and Tekken series as I am a huge fan of those video game
> series. I was heartbroken when I was little when I found out that the emulation was
> not complete for the Namco System 11/12 systems. But I am absolutely thrilled that
> its close to near complete. Thanks again
>
> I do have two questions to address though if that's OK. For the Namco System 11/12
> games (at least in the case of the Soul Calibur and Tekken games; not sure if this is
> applicable to the other System 11/12 games), I noticed that during the bootup
> process, it does not show the "Initialising!! Jamma Video Standard" screen, and
> instead presents white, yellow, blue and green coloured bars as shown in this video:
> https://www.youtube.com/watch?v=jH9Xt0FgH8s. This is what the boot process looks like
> for those who are not sure: https://www.youtube.com/watch?v=XqLCqCMDoeg. Is there a
> reason why the MAME development team decided to do this? And if it is not meant to
> happen, will this be considered in future MAME releases? I know I am being a huge nag
> for pointing this out...I just like the emulation to be as accurate to the original
> PCB boards as possible...if that's not asking for too much...
>
> Also, when I play "Tekken 3" on MAME and it goes to the credits, it pauses after it
> shows how you beaten each opponent, and then goes to the next stage after a few
> seconds. The sound is also in a constant pause. Strangely enough, it doesn't happen
> when it reaches Stage 9 where you fight Heihachi, and Stage 10 where you fight Ogre.
> Has anyone else encountered this issue? Or is it just me...(: If it is a general
> issue, please consider fixing this issue. I would greatly appreciate it.
>
> Thank you for taking your time to read this
>
> Many thanks.
>
> Kindest regards,
> AnimeFan95

I believe the main differences on startup are because MAME emulates the boards as if they were connected using a the JAMMA standard, not the newer 'JVS' (aka JAMMA2) standard. The actual PCBs can be connected either way. The JVS protocol is newer, but potentially more laggy as I believe it actually involves additional MCUs to process the inputs etc. and often requires an additional sub-board as a result. (although I could be wrong here)