Comments (4)
Yeah, OPLx family uses only one adder for multiplication and thus some values are missing.
Here's code that does multiplying OPLL way: https://pastebin.com/KTTZmctS
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Sorry, I have found it in the YM2413 App. notes and also in the Y8950. It is a documented behaviour indeed.
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I see. That makes a lot of sense, yes. I'm working on the verilog version of OPL1 at the moment (YM3526). I wonder if you'll tackle that one too eventually.
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Cool, I'd like to make one when somebody decaps YM3526 or YM3812.
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Related Issues (6)
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