07721: defender, defenderw: Defender cocktail table mode cannot be enabled

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
07721	Flip Screen/Cocktail	Minor	Always	Aug 5, 2020, 21:03	Aug 9, 2020, 23:04

Tester	samsho2	View Status	Public	Platform	MAME (Official Binary)
Assigned To		Resolution	Open	OS	Windows 10 (64-bit)
Status [?]	Acknowledged			Driver	midway/williams.cpp
Version	0.222	Fixed in Version		Build	64-bit
		Fixed in Git Commit		Github Pull Request #

Summary	07721: defender, defenderw: Defender cocktail table mode cannot be enabled
Description	Enabling Defender's cocktail mode is strange in that it's controlled by connecting/disconnecting Widget 1 and Widget 2 depending on the set. From the manual: "FOR COCKTAIL TABLE GAMES, W2 MUST BE CONNECTED AND W1 MUST BE REMOVED. FOR UPRIGHT GAMES, W1 MUST BE CONNECTED. WITH RE-LABELED ROMS, W2 MAY BE CONNECTED OR REMOVED. WITH LABELS OF OTHER COLORS, W2 MUST BE REMOVED."
Steps To Reproduce	Try to play the game in its cocktail mode that will automatically flip the screen when it's player 1 or player 2's turn.
Additional Information	Here are scans from the manual that show how cocktail mode is activated. https://cdn.discordapp.com/attachments/671633303467458564/740397976412749976/unknown.png https://cdn.discordapp.com/attachments/671633303467458564/740398016275677306/unknown.png
Github Commit

Flags
Regression Version
Affected Sets / Systems	defender, defenderw

Attached Files

No.17871 AJR Developer Aug 7, 2020, 04:14	The "Widget" (PIA) board jumpers are for extra cocktail inputs. Removing W1 causes PB7 to be pulled up, and inserting W2 connects CB2 to the input multiplexers. A different W1 on the CPU/video board is involved with controlling screen flipping. The williams.cpp driver half-emulates this circuit by setting a variable called m_cocktail, but then does nothing with it.