Tac/Scan cocktail mode not flipping

[rdagger]

Despite setting the dip switch in Tac/Scan to Cocktail mode, the screen doesn't flip for player 2. The game flyer shows both standup and cocktail cabinets.

[arcadez2003]

It's listed as a bug on the arcade database although sometimes these comments are outta date

"The cocktail DIP has no effect and there are no separate controls for player 2. Frotz (ID 00260)"

Does it flip correctly using current MAME.??

[rdagger]

Current MAME doesn't flip either. It's strange because the owner's manual specifies a DIP switch for cocktail mode.

[arcadez2003]

Current MAME doesn't flip either. It's strange because the owner's manual specifies a DIP switch for cocktail mode.

Yeah i believe ya it's just that option needs to be coded in both the driver and the video code, i guess no one on the
MAME dev team has gotten around to it yet.

[mahoneyt944]

I saw that all these games in the driver have cocktail dips. Apparently these dips are non standard, accordingly to the driver documentation. Would have to look at the drawing bits to see if it just needs flipped, could possibly fix a handful of these if so.

[mahoneyt944]

I've been looking over the code and trying to research this a little bit. I can't seem to find so much as an image of an actual tac/scan cocktail table. Also noted in mame's source, the cocktail switch is not mentioned in the owners manual for most of these games. It's quite possible this switch was just never used officially and therefore isn't meant to function? Of course this is just speculation, but normally there's at least some information to go by.

I think it's doable to hack in flipping capability but I'd like to verify that this functionality actually existed on real cocktail tables first. Seems like it maybe just an unused switch?

Similar to asteroids, if a cocktail tac/scan exists it shares inputs over the same port, so finding a flip bit or player selection bit would be required. This also means that it would likely share the same PCB with modifications to the harness.

[rdagger]

The flyer shows a cocktail table and klov indicates a cocktail cabinet (It is noted in the miscellaneous section).

[rdagger]

Page 8 of the owner's manual shows that switch 1 controls the cocktail mode. Page 117 (left side) shows the schematic for switch 1.

[mahoneyt944]

I hooked up flipping for these sega games, fb65370

Just need to figure out what bit is suppose to control the flipping. Either a flip bit or player selection.