256KB BINs..... plenty to play with. the "52" BIN i have opened is empty from 29FF6 to the end of the BIN at 40000..... LOT of extra space.
odd that they use a 6816 as a main processor and a pair of 6811s for fuel/spark control... simplifies the main calibration a bit, but it would introduce things that cannot be changed....
anyways, i had that one loaded into IDA, but i have no idea where the reset vector is stored on the 6816s.... when that and the other vectors are determined, then i can get it disassembled at least.
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