* VIDEO: Fix bug: vid_ready can be used uninitialized.
* VIDEO: Not all events come with a valid windowID.
* PDP11: Fix NG SET TYPE.
The sense of MATCH_CMD is reversed.
* display: Fix bug in NG display controller.
There should be a separate state for each of the eight displays.
* display: Symbolic constant for number of displays.
Simulators built with DONT_USE_INTERNAL_ROM defined will not have hte
binary of the needed ROM or boot components build into the simulator
binaries. However, they will automatically and transparently fetch the
neeeded ROM or boot code from the web when these binary files aren't
available locally.
Historically, if a configuration file explicitly set either a DEVICE's
ADDRESS or VECTOR, autoconfiguration was immediately disabled.
This change defers disabling autoconfigure until an explicitly setting
of a DEVICE address or VECTOR actually changes what had been previously
configured by autoconfigure.
