Added support to read and punch octal binary records. Now Truncate
input at 80 columns of input. All data in record after 80 are
ignored. Changed buffer to read less often.
Major cleanup to code, set_interrupt() now only looks at 3 lower bits
to determine interrupt level. Some Copyright notices have been updated.
DC10 now handles modem control correctly. And will support up to 32 lines.
Modem lines start at a fixed value and follow the data lines.
Update the RP10 disk controller to handle multiple access and
to properly handle status on a per drive basis. Also added in
start of proper debuging functions. Change CPU to not miss
interrupts when multiple interrupts occur.
