Re: BBR/BBS 65C02 instruction cycle counts

From: smf <*smf_at_null.net*> Date: Thu, 30 Jun 2016 12:45:00 +0100 Message-ID: <ed5ccc80-98a5-cf9d-aca5-47d2a67720d1@null.net> · smf_at_null.net

On 30/06/2016 08:54, Kajtár Zsolt wrote:

> Mostly it's verification is
> "it runs the default ROM, so must be good" and things like incorrect BCD
> emulation gets unnoticed for years.

Even getting the cycle counts right isn't enough though, the amount of 
effort that has gone into the vic's interaction with the 6510 is astounding.

I however wouldn't like to put money on it being accurate over vblank as 
it could easily be wrong and you would be hard pressed to know.

       Message was sent through the cbm-hackers mailing list