11/45 progress
Dennis Boone
drb at msu.edu
Sun Mar 6 22:55:15 CST 2005
> The console on all PDP-11s is at the same place, 777560-777566 (add
> "17" in front for a 22-bit system, though). The first word is the
> receive control and status register (CSR), the next is the receive
> buffer register, then the transmit CSR, and lastly the transmit buffer
> register. So if you have a terminal connected, and with baud rate,
> parity, and word size to match the M7800 settings, simply DEPositing a
> value into 777566 should cause the corresponding ASCII character to
> appear on your terminal. If you type a character on the terminal, it
> should appear in the lowest 8 bits of 777562.
Should this work in the simh emulator? I can't seem to get it
to happen. But maybe I'm just having a stoopid day.
De
More information about the cctalk
mailing list