24 Sep
2014
24 Sep
'14
3:45 p.m.
On 24/09/2014 19:32, Earl Evans wrote:
I have a floating point processor (FPP) on a currently
unused 11/23 CPU
M8186 card (KDF-11A). From the manual, looks like this is a KEF11-A.
Also, in my working 11/23+ with KDF-11BA, I have no FPP.
Does anyone know if the FPP unit is compatible from the 11/23 to the 11/23+
- i.e., can I transplant the FPP chip from the 11/23 to the 11/23+ CPU
card? Could it be that simple? :-)
Yes, it is that simple. The same IC is used in both. It's just a
microcode ROM (MICROM). The registers it uses are in the MMU chip, so
you need that as well.
--
Pete