VM/CMS CP NOTREADY Command
Change a virtual I/O device to the not ready state
Priviledge Class G
This command makes a virtual device report not ready the next time a SIO
instruction is executed.
vaddr the address of the device in question.
Sys Responses: None
Notes: Applies only to virtual unit record and console devices. An I/O
operation in progress when the command is entered will be completed.