28 Jul
2012
28 Jul
'12
2:18 a.m.
On 07/28/2012 01:53 AM, Eric Smith wrote:
Chris Elmquist wrote:
That would be breat! But wait, aren't the HSCs all PDP-11 based? I
know the HSC50 has an F11 in it, and the HSC70 (and later) use a J11; is
there also a bit-slice processor in there?
If I desolder these and read them, do we really
have use for the bits?
I've written a 2901 disassembler before. It was for something that used
a custom sequencer rather than the 2909, but it wouldn't be hard to hack
it up to use the 2909. So if Tony doesn't have the code for his
disassembler handy, I could hack one together fairly quickly.
I've been considering doing such a thing anyhow for the UDA50, KDA50,
and HSC microcode. IIRC, they use two 2910 sequencers for two
independent threads of execution.
Neat!
-Dave
--
Dave McGuire, AK4HZ
New Kensington, PA