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Defender - cocktail

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spisi:

I'm trying to get Defender to work on my MAME cocktail table. I can't seem to locate the correct rom that has the dip switch option. I've tried the red and blue label roms to no avail. Any help would be greatly appreciated.

spisi:

Just tried white lagel - no luck there either...

PL1:


--- Quote from: spisi on August 09, 2023, 01:27:34 pm ---I'm trying to get Defender to work on my MAME cocktail table. I can't seem to locate the correct rom that has the dip switch option. I've tried the red and blue label roms to no avail. Any help would be greatly appreciated.

--- End quote ---
This is a known issue.
https://mametesters.org/view.php?id=7721

There's no dipswitch menu because Defender used three jumpers instead of dipswitches to set either upright or cocktail mode.

On the Interface Board, upright vs. cocktail mode is determined by whether jumpers W1 and W2 were installed or removed.
- W1 and W2 are shown mid-lower right side of the schematic on page 14 of the manual here.



On the CPU/Video board there is a W1 "Screen Control" jumper on page 10 of the schematic here (1/3rd down the page, just left of center) and page 6 shows the physical location of W1 "Screen Control". (between ICs 5B and 5C)
- The theory of operation for W1 "Screen Control" is covered on pages 17-18 of the manual here.

One of the MAME devs could possibly implement these three jumpers using a "Machine Configuration" menu entry to select "Upright" or "Cocktail" like they did for Asteroids starting in v0.198.
http://forum.arcadecontrols.com/index.php/topic,157459.0.html

Until they get around to doing that, you might be able to use MAME's fake "Cocktail" video mode and map the P1 inputs to work with both P1 and P2 controls.   :-\


Scott

spisi:

Bummer.....

spisi:

What's the odds that the devs will work on this? I would have thought it would have been addressed by now, no? Is there a chance it will never happen?

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