16 Dec
2012
16 Dec
'12
5:12 p.m.
On 12/16/2012 04:25 PM, Holm Tiffe wrote:
As Dave worked aout above, the OEM supplied some
libraries and the VAXELN
Kernel to the customer and so it is depending of the OEM how the lowlevel
routines are implemented. The Interface for the customer was only the
library...
I don't think that this console Monitor is implemented in microcode
anymore like the PDP11s ODT, even the russians PDP11s (K1801VM2 for
example) hat it in an external ROM (with it's own address space).
So it is the OEM that's to blame in this case, not DEC I think..
(Wich doesn't make it any better at all)
The monitors on the VAXen are not done in microcode, they are actually
VAX code. The microcode-based ODT is particular to the LSI-11, F11, and
J11-based PDP-11s. (any others?)
-Dave
--
Dave McGuire, AK4HZ
New Kensington, PA