[Coco] Copying over an IO ERROR

[Arthur Flexser]

Out of curiosity, Darren, what does a "true" address mark consist of?

Art

On Wed, Feb 4, 2015 at 8:56 PM, Darren A <mechacoco at gmail.com> wrote:

>
> The "noise" mentioned in that paragraph also seems to include bit sequences
> that may be found in sector data.  In particular, the following are known
> to cause a false A.M. detection:
>
> $29 preceded by any even byte value (bit 0 cleared)
> $52 or $53 preceded by any byte divisable by 4 (bit 2 cleared)
> $A4 through $A7 preceded by any byte divisable by 8 (bit 3 cleared)
> $14 followed by any byte greater than or equal to 128 (bit 7 set)
>
>