Date   : Fri, 02 Nov 2012 15:36:30 +0000
From   : tom@... (Tom Seddon)
Subject: 6502 timing and zero-page instructions

On 2 Nov 2012, at 14:59, Jules Richardson wrote:

> Does anyone know how many cycles it takes for a zero-page AND or ORA 
> instruction to complete on the 6502?

AUG says 3 cycles (as per any read instruction).

64doc is probably a fairly trustworthy reference: http://vice-emu.sourceforge.net/plain/64doc.txt

--Tom