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S11rittam - R&T - prototype or hack version of Rod Land #234

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merged 3 commits into from Jul 3, 2015

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system11b commented Jul 3, 2015

http://www.system11.org/temp/ROMs/S11rittam.zip

It's an original Jaleco board, it has the correct Rod Land priority PROM and the same encryption chip as JP rev. Graphics banks are split and descrambled, title screen is changed, there's no hidden selectable set of extra levels. Sound effects are played at the wrong times compared to a normal one, the PCB does this too. Original Jaleco ROMs on the sound ROM so no idea what's going on there considering the sample ROMs are the same as normal except for being split. ROM 17 is possibly missing, maybe that would normally contain some extra level graphics. Rest of the data doesn't quite match the existing sets so not sure if the gap could or should be filled in. Is this data even used on the normal board with a single 27C040?

My best guess given the encryption and presence of real parts is that it's either a prototype / location test version. I've named the sample ROMs as they should have been because I could see where proper JALECO labels had definitely fallen off them, and one from each bank is present.

Credit to Shinobi / System11 for this one, Shinobi sent me the board to be dumped.

rb6502 added a commit that referenced this pull request Jul 3, 2015

Merge pull request #234 from system11b/S11rittam
S11rittam - R&T - prototype or hack version of Rod Land

@rb6502 rb6502 merged commit a0fdd6f into mamedev:master Jul 3, 2015

@system11b system11b deleted the system11b:S11rittam branch Jul 3, 2015

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