remove assumption that dsp common ram is an MB8421 (MB8421 used on the sound part)
New games added or promoted from NOT_WORKING status
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Vegas 1 (Ver 2.3 dual coin pulse, shorter) [any]
Vegas 1 (Ver 2.1 dual coin pulse, longer) [any]
Vegas 1 (Ver 1.33 single coin pulse) [any]


This is a coin pusher machine from Spain.  Your guess on how to work it is as good as mine ;-)