03532: rungun, rungun2, soccerss, vsnetscr, rushhero: Konami dual output isn't supported

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
03532	Gameplay	Minor	Always	Nov 13, 2009, 15:24	Jul 5, 2017, 11:24

Tester	Haze	View Status	Public	Platform	MAME (Self-compiled)
Assigned To		Resolution	Fixed	OS
Status [?]	Resolved			Driver
Version	0.135	Fixed in Version		Build	Normal
		Fixed in Git Commit		Github Pull Request #

Summary	03532: rungun, rungun2, soccerss, vsnetscr, rushhero: Konami dual output isn't supported
Description	these games (in rungun.c and konamigx.c) are meant to support dual monitor output, like X-Men 6 player version. This is a 2-part process, firstly there is a Konami custom on the PCBs which acts as a multiplexer, allowing display data for 2 screens to be rendered with a single set of chips. This appears to somehow transparently banks ram. The displays for each screen are then output in alternate frames via JAMMA. There is an additional Konami splitter board that plugs into the JAMMA and sends the alternating frames to the correct monitor. Hooking this up in MAME is difficult, and means invalding all the tilemaps every frame (because their data changes for each screen) I'm adding this report more as a reminder, and for a place to leave information about how this multiplexing works.
Steps To Reproduce
Additional Information
Github Commit

Flags
Regression Version
Affected Sets / Systems	rungun, rungun2, soccerss, vsnetscr, rushhero

Attached Files

No.13960 Osso Moderator Jul 5, 2017, 11:24	All the games listed seem to support the dual output as of 0.187.