Retro1.org codex

RT                                                        CMS Immediate command

Use the RT (Resume typing) command to restore terminal output from an executing
CMS command or one of your programs that was previously suppressed by the HT
command.  The format of the RT command is:
+----------+------------------------------------------------------------------+
| RT       |                                                                  |
+----------+------------------------------------------------------------------+

You can issue an Immediate command only after causing an attention interrupt by
pressing the Attention key (or its equivalent).  The command is processed as
soon as it is entered.  It is also executed immediately when stacked in an EXEC
procedure.  Any program execution in progress is suspended until the Immediate
command is processed.


Usage note:

Program execution continues, and displaying continues from the current point of
execution in the program.  Any terminal output that is generated after the HT
command is issued and up to the time the RT command is issued is lost.
Execution continues to normal program completion.