Re: CIA old/new?

From: Segher Boessenkool <*segher_at_kernel.crashing.org*> Date: Mon, 4 Jan 2021 10:19:04 -0600 Message-ID: <20210104161904.GC30983_at_gate.crashing.org> · segher_at_kernel.crashing.org

On Sun, Jan 03, 2021 at 09:45:39PM +0100, groepaz_at_gmx.net wrote:
> Not every detail in the design is clocked, some delays just happen because of 
> gate propagation delays - and when the process changes, those delays may 
> change as well.

Yup, exactly.

> The well known "grey dot" the new VICII produces are related 
> to exactly the same thing.

But this isn't true at all.  You get the grey dot if *external* timing
is off!  The difference isn't between VIC-II versions, the difference is
between boards (and what PLA or PLA replacement is used on that).

Segher