Setup Commands - Texas Instruments 990 Operation Manual

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PX9EDT provides two output commands to write data on the output file. One command
outputs a specified number of lines, or all lines of data from the buffer. The other outputs a
specified -number of lines, or all lines of data from the buffer, or from the buffer and the input
file, and writes an end-of-file record following the last line. . '
One other command allows the user to terminate the edit process without outputting any lines
or writing an end of file. . .' .
Commands are entered at the keyboard in response to the printing of a question mark
(?).
The command language is free-form, in that one or more spaces may be inserted between
characters and operands of the commands. Each command is terminated by entering a carriage
return.
4.5.1.1 Operands. The operands of the PX9EDT commands specify numbers of lines, line
numbers, or displacements from the pointer. The edit commands and one of the print commands
may specify a group of lines by first and last line number, or by a number of lines relative to
the pointer.
The procedure for moving lines to or from the buffer is described in paragraph 4.4.3.
4.5.1.2 Conventions. The following' symbols and conventions are used in defining the syntax of
PX9EDT commands:
• Angle brackets
«
»
enclose items supplied by the user.
• Brackets ([ ]) enclose optional items.
• Braces(t }) enclose items between which a choice must be made; one, but only one, of
the items must be included. . '
• Items in capital letters and punctuation marks must be entered as shown.
The syntax definitions and examples shown in this manual do not show spaces between the
characters of the two-character commands, between the command and operands, or between
operands. Spaces may be entered at these points if desired. All operands are decimal numbers.
4.5.2 SETUP COMMANDS. The setup commands may be entered' immediately following the
initial message to initialize limits for the Find command and the right margin for printing, and to
. enable or inhibit printing of line numbers. These commands may also be entered at any time
during the edit to change any of these parameters. When neither of these commands is entered,
line numbers are printed, the right margin for lines of print is column. 72, and columns 1
through 72 are scanned by the Find command. The setup commands are described in the
following paragraphs.
4.5.2.1 Line Numbers (SL). The Line Numbers command causes PX9EDT to resume printing
line numbers to the left of each statement or record. The syntax for the SL command is as
follows:
SL
The SL command is used to restore printing of line numbers after line number printing has been
. inhibited by execution of an SN command.
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Digital Systems Division