4 Apr
2006
4 Apr
'06
1:09 p.m.
On 4/4/2006 at 2:30 PM Roy J. Tellason wrote:
On Tuesday 04 April 2006 10:23 am, Chuck Guzis wrote:
If you want to use the 3-byte CD xx xx vectored output of the 8259 they
are. AFAIK, the Z80 doesn't output 3 INTA pulses in response to an INTR-CD
sequence, although with enough glue, I suppose anything's possible.
Cheers,
Chuck
Everyone knows that Z80 timings are wrong for an
8259.
They are?