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Re: 6502 illegal opcodes questions



sicklittlemonkey wrote:
(From Linards)

Is it documented anywhere which of these opcodes have which cycle counts?


Without checking, they should be the same as the corresponding LDA
opcode with the relevant addressing mode.

(From Marcus)

There are some discrepancies between the different info files floating around the net.


Yes, I've been collecting these, and collating the information for some
time.

Since there were several versions of the 6502, isn't it likely that
some had *differing* illegal ops and results?

-michael

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