Main > Main Forum

Macross PCB, Different Version's?

<< < (4/4)

yotsuya:

--- Quote from: yotsuya on March 29, 2023, 03:45:00 pm ---
--- Quote from: PL1 on March 28, 2023, 03:00:52 pm ---
If Yotsuya is willing to dump some ROMs from his PCB…


--- End quote ---

I’ll get right on that….


Sent from my iPhone using Tapatalk

--- End quote ---

Ok, might have some time soon. What do you think, Scott, just dump A03?

PL1:

--- Quote from: yotsuya on September 11, 2025, 10:00:29 pm ---
--- Quote from: yotsuya on March 29, 2023, 03:45:00 pm ---
--- Quote from: PL1 on March 28, 2023, 03:00:52 pm ---If Yotsuya is willing to dump some ROMs from his PCB…

--- End quote ---
I’ll get right on that….

--- End quote ---
Ok, might have some time soon. What do you think, Scott, just dump A03?

--- End quote ---
I defer to Haze's experience and judgement on this.

He said that A03 (maincpu) is the most likely to contain different data so that will probably be enough for the MAME devs to add your variant to the "nmk/nmk16.cpp" driver.
- While you're at it, you may also want to dump A02. (audiocpu)

--- Quote from: Haze on March 29, 2023, 05:09:19 am ---Assuming it isn't a prototype, then it's only really likely that the maincpu ROM will differ, with a very small chance of the audiocpu ROM differing

--- End quote ---

They may also want some good photos of your PCB to confirm that everything is hooked up the same way as the current version in MAME.

Other info that might be useful is some of the crystal frequencies if you have a way to measure them with a frequency counter or an O'scope.  There have been lots of audio frequency bug reports and fixes recently over at MAMETesters.
 
Not sure where or who to send the dump/pics/info to, but Robbbert might be able to point us in the right direction if we can't get ahold of Haze who hasn't been on BYOAC for several years.   :dunno


Scott

Xiaou2:
Since there are Eyes on this thread... I thought Id mention,  that many many years ago... I went to
an Arcade Auction, which I believe was in New Jersey,  with a few other collectors.

 While there... I saw a Speed Buggy or Buggy Boy (standup cabinet), and it was different from the versions I
remember playing in Mame.

 In the Mame version.. you can run into any flag / flag pole.. to get points.   However, in this version..
if you hit the flag poles.. your Buggy would be bounced backwards.   As such, you had to be EXACTLY
in between each pole, to pass through it, and get the points.

 At the time, I think my memory was a little fuzzy about if the mame version was like that.. and or
if a certain Dip Switch would change the games behavior.  I didnt consider the possibility that it was a
different Rom revision... else Id have reported it.


 I believe that Auction is where I picked up a slightly over-priced Spy Hunter..  which also needed
a new Pedal assembly, due to partially stripped gears.   I couldnt contain myself, as I always wanted
to get my hands on that game.   I enjoyed it for many years.. before eventually being forces to sell
it for much needed cash.  = [

PL1:
One other thing I forgot to mention, Yots.

You might want to try replacing the "921a03" file in the macross.zip ROM with the A03 dump from your board to see if it "just works" in MAME like the improved/modded ROM version of Sinistar that was mentioned in this thread.

I found that with the modded Sinistar ROMs, you couldn't run them from MAME's built-in UI because they have different checksums than the original.
- If you launch the game from command line, it will warn you that the checksums don't match, but it will still run.   ;D


Scott

Navigation

[0] Message Index

[*] Previous page