Quick question. What's the difference between a Flipper ROM and a Game ROM? Based on the limited amount of information I'm able to glean from a Google search (plus some wild speculation on my part) I'd think that a Flipper ROM is kind of a "framework" that the Game ROM then applies scoring rules to. That is, the Game ROM possibly tells the Flipper ROM to flash a light or fire a solenoid, and the Flipper ROM handles the actual execution of that task.
Am I anything even close to correct?
Sort of.
Think of the flipper ROMs as the operating system and the game ROM as the program code. As the ROMs got bigger eventually the OS and game ROM were combined as a practical matter as it made no sense to maintain a separate ROM just for the OS. By the time you get to WPC you can point to a specific spot in the single ROM image where you know the OS begins and above which is the game code.
viperrwk
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Revere, MA