MWAIT   a replacment of the $MESSAGE/WAIT from RSX11-D BATCH
 
The primary use of MWAIT is to funnel users through our single Paper Tape Punch.
The typical command string is
 
$MWAIT text-string
 
When involked form a command file or batch stream a message is printed on the colsole
 
MWAIT  CONTINUE OT ABORT
text-string>
 
Then the operator may CONtinue, ABOrt, NOPunch, or WARn in response.
CONtinue will check the allocation of PP0:, if not allocated it will exit with success
 
ABOrt will exit with severe error
 
NOPunch will exit with success
 
WARn will exit with warning
 
Thus command files use the ON status and MWAIT to control access to the 
 
Punch