Date : Fri, 02 Nov 2012 15:49:01 +0000
From : adsb@... (Andrew Benham)
Subject: 6502 timing and zero-page instructions
On 02/11/12 15:36, Tom Seddon wrote:
> 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).
I can only find here original datasheets for CMOS variants.
Rockwell R65C02/R65C102/R65C112 states 3 cycles.
GTE G65SCXXX family states 3 cycles.
--
Andrew Benham Southgate, London N14, United Kingdom
The gates in my computer are AND OR and NOT, not "Bill"