IPC for VMS

IPC is the 'Interrupt Priority Level C' program and is used for adjusting quorum, canceling mount verification or dropping into XDELTA. Normally it is invoked on a real VAX using a sequence like:

[Ctrl/P]

>>> D/I 14 C
>>> CONT

IPC>

but this is not possible with Simh (especially with the 11/780 where there is no console program). Instead the following sequence can be used:

[Ctrl/E]

sim> D SISR FFC0
sim> CONT

IPC>

See the OpenVMS System Manager's Manual for full documentation on IPC.