Bug in Mr Do

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   Dougsy - thanks for confirming that the bug is indeed present on a Universal board as Favouredson had earlier stated.
Do you have the ability to dump the code eproms?  In particular the eproms at positions E4 and F4, as the code differences from the bug fixed versions will be in those two.

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cmonkey Members Profile Send Private Message Find Members Posts Add to Buddy List High Score Joined: 15 October 2012 Location: Leeds, UK Status: Offline Points: 800	Post Options Post Reply Quote cmonkey Report Post Thanks(0) Quote Reply Posted: 08 March 2014 at 9:21pm
	Dougsy - thanks for confirming that the bug is indeed present on a Universal board as Favouredson had earlier stated. Do you have the ability to dump the code eproms? In particular the eproms at positions E4 and F4, as the code differences from the bug fixed versions will be in those two.

Dougsy Members Profile Send Private Message Find Members Posts Add to Buddy List Bonus Stage Joined: 20 February 2010 Location: Glasgow Status: Offline Points: 482	Post Options Post Reply Quote Dougsy Report Post Thanks(0) Quote Reply Posted: 08 March 2014 at 9:35pm
	Sorry don't have the know how or the facilities to dump the roms but I hope something is confirmed now. As I stated earlier I always thought it was only the taito version or boots that you could do the bug trick on. I now have the knowledge
	WANTED : I'll update later, Not made my mind up yet.

cmonkey Members Profile Send Private Message Find Members Posts Add to Buddy List High Score Joined: 15 October 2012 Location: Leeds, UK Status: Offline Points: 800	Post Options Post Reply Quote cmonkey Report Post Thanks(0) Quote Reply Posted: 08 March 2014 at 10:21pm
	No worries. At least now we know for sure that there are definitely bugged Universal boards out there. Sooner or later someone will dump one of those boards and submit it to the MAME crew.

Favouredson Members Profile Send Private Message Find Members Posts Add to Buddy List Kill Screen Boggy ’88 - I’ve got the T-shirt! Joined: 24 February 2007 Location: Chelmsford SX Status: Offline Points: 4053	Post Options Post Reply Quote Favouredson Report Post Thanks(0) Quote Reply Posted: 09 March 2014 at 4:39pm
	Okay! I have checked my boards and the only one I got it to work on has flip-screen and high score save hacks so ROMs D1 & D2 are not original BUT ROM D3 (as labelled, not 03 as MAME insist on naming it) at position E4 does not match any sets currently in MAME. All the other unchanged ROMs match the Universal set 'mrdo'.
	Garry

Favouredson Members Profile Send Private Message Find Members Posts Add to Buddy List Kill Screen Boggy ’88 - I’ve got the T-shirt! Joined: 24 February 2007 Location: Chelmsford SX Status: Offline Points: 4053	Post Options Post Reply Quote Favouredson Report Post Thanks(0) Quote Reply Posted: 09 March 2014 at 4:59pm
	I have just played Mr. Do! in MAME+ (with nags turned off) with my different D3 in place of the MAME one and it plays fine and the bug triggered on the first screen. ROM audit error message... .inp of the bug working... mrdo-bug.zip If you are truly bored or just crap at the game you can play from round 2 with 255 lives if you wish.
	Garry

cmonkey Members Profile Send Private Message Find Members Posts Add to Buddy List High Score Joined: 15 October 2012 Location: Leeds, UK Status: Offline Points: 800	Post Options Post Reply Quote cmonkey Report Post Thanks(0) Quote Reply Posted: 09 March 2014 at 5:02pm
	Awesome stuff Favouredson! Looks like you've got yourself a buggy Universal board! Get that D3 rom submitted to the MAME crew a.s.a.p.

Tronads Members Profile Send Private Message Find Members Posts Visit Members Homepage Add to Buddy List Kill Screen Joined: 07 November 2010 Location: England Status: Offline Points: 1550	Post Options Post Reply Quote Tronads Report Post Thanks(0) Quote Reply Posted: 09 March 2014 at 7:01pm
	I just tried the prototype again and got it to work on my 3rd attempt, so I guess I just wasnt patient enough last night. I wonder what the logic is that makes it work sometimes but not others, when you seemingly do exactly the same thing.
	Pacman - 3,131,650 Donkey Kong - 389,000

Favouredson Members Profile Send Private Message Find Members Posts Add to Buddy List Kill Screen Boggy ’88 - I’ve got the T-shirt! Joined: 24 February 2007 Location: Chelmsford SX Status: Offline Points: 4053	Post Options Post Reply Quote Favouredson Report Post Thanks(0) Quote Reply Posted: 09 March 2014 at 9:59pm
	After hunting through 300 or so 2764s I found a (the?) D2 which also matches the one in the mrdo romset. No sign of D1 though.
	Garry

Favouredson Members Profile Send Private Message Find Members Posts Add to Buddy List Kill Screen Boggy ’88 - I’ve got the T-shirt! Joined: 24 February 2007 Location: Chelmsford SX Status: Offline Points: 4053	Post Options Post Reply Quote Favouredson Report Post Thanks(0) Quote Reply Posted: 29 March 2014 at 12:10pm
	I contacted the MAME team and, three weeks later, nothing...
	Garry

cmonkey Members Profile Send Private Message Find Members Posts Add to Buddy List High Score Joined: 15 October 2012 Location: Leeds, UK Status: Offline Points: 800	Post Options Post Reply Quote cmonkey Report Post Thanks(0) Quote Reply Posted: 29 March 2014 at 12:58pm
	They probably won't let you know anything, they'll probably just include the bugged Universal version in an update to the Mr. Do! driver at some point in the future. At least that's what they did when I submitted the Hang-On (ride on) version to them. Keep checking the release notes in each new release and eventually it'll appear.

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