[Simh] Pdp8 terminals

[Bob Supnik]

The PDP8 simulator is more or less a PDP8/A, and its terminal 
"multiplexor" is a KL8-JA, which implements four discrete KL8A style 
interfaces. These are superset compatible with the PDP8/I's PT08 
discrete interfaces, and thus TSS/8 will work. Note that TSS/8 supports 
only four discrete terminal interfaces. To get more than four lines, the 
configuration must have a DC08(A), a multiplexor for the PDP8/I. The 
DC08(A) is not implemented at the moment.

There was a significant evolution in the PDP8 family's IO controllers 
from the original 8 and 8/I to the Omnibus-based 8/E and 8/A. The 
original DECtape controller for the PDP8 was a single-cycle data break 
device; the later TC01 and TC08 were three-cycle data break devices. The 
original RK controller for the 8/I was very different from the later 
RK8E. In general, peripherals unique to the 8 and 8/I, such as the 
DC08(A), are not implemented.

/Bob

On 9/6/2016 12:00 PM, simh-request at trailing-edge.com wrote:
> Pdp8 terminals (Gene Irwin)