Greetings guys:

The R65C02 Datasheet I have says that it takes seven cycles after detecting the rising edge on the /RES pin before the CPU fetches the reset vector but I'm only counting five cycles. May I ask if anyone has tried this, please?

Thanks in advance. Cheerful regards, Mike

Fetching the vector is part of the 7-cycle reset sequence. After that, it's off and running in your reset routine.

BTW, if you were to want a single cycle per byte fetched, you could use something like A9 (LDA#) instead of EA (NOP). You'll get LDA#$A9 over and over which takes two cycles for a two-byte instruction.

_________________
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The "second front page" is http://wilsonminesco.com/links.html .
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Thanks for the info'/confirmation, Garth. My interpretation of the Datasheet was way off.

I've never had a way to see those extra clock cycles before. Single cycle stepping, as well as having the ability to feed the R65C02 with data (after disabling the address decoder circuitry), is pretty cool...

Cheerful regards, Mike