Manual

97
executive
executive
Descriptions
Places the printer into a prompted line input mode to facilitate experimentation with PAL operators
using a terminal or terminal emulation program.
Usage
executive
Comments
executive mode makes it easier for a programmer to directly interface with the PAL interpreter
using a terminal or terminal emulation program. Under executive mode, the interpreter will
prompt the programmer when the interpreter requires additional input.
Once prompted, the programmer can enter a full line of PAL data and operators. During line input,
the programmer can use backspace and other limited line editing capabilities. Under executive
mode, the interpreter accepts the following line editing controls.
Oct Dec Hex Mnemonic Typical Keys Description
010 008 08 BS Ctrl+H Backspace. Delete last character on the line.
012 010 0A LF Ctrl+J Line Feed. Indicates completion of the current
line, thereby allowing PAL to process the line.
015 013 0D CR "Enter",
"Return", or
Ctrl+M
Carriage Return. Functions same as Ctrl+J.
022 018 12 DC2 Ctrl+R Retype. PAL will display the line as it has
been entered so far.
025 021 15 NAK Ctrl+U Undo. Instructs PAL to discard the current
line so that the programmer can start the line
over again.
Under executive mode, the interpreter continues to process data in exactly the same manner as
under normal host communications. The only difference being that the interpreter allows the
programmer to enter and edit a full line before processing the data.
Entering and exiting
executive
mode has no effect upon other areas of printer operation. The
programmer can start by sending commands to the printer under normal host communications
mode. The programmer can then switch to executive mode to supply additional commands. The
programmer can then use the
_execexit
operator to terminate
executive
mode and resume normal
host communications.