13 Feb
2017
13 Feb
'17
10:24 p.m.
On Mon, Feb 13, 2017 at 12:35 PM, Tony Duell <ard.p850ug1 at gmail.com> wrote:
That seems possible, yes.
Having other hardware decode instructions that appear as NOPs to the main
processor is not uncommon in HP machines.
And it's even common in HP machines for such instructions to be used for
ROM bank switching.