Texas Instruments TI-80 User Manual - Page 161
PRGM I/O (Input/Output) Instructions, I/O EXEC, INPUT, DISPGRAPH, CLRHOME
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PRGM I/O (Input/Output) Instructions The PRGM I/O (program input/output) instructions are accessed only from the program editor. They control input to and output from a program, allowing you to enter values and display answers during program execution. While the program editor is displayed, press K. The selected menu item is copied to the cursor location. PRGM I/O Menu Displaying a Graph with INPUT CTL I/O EXEC 1: INPUT Enters a value or displays the current graph. 2: DISP Displays text, value, or the Home screen. 3: DISPGRAPH Displays the current graph. 4: CLRHOME Clears the Home screen. INPUT without a variable displays the current graph. You can move the free-moving cursor, which updates X and Y. The dotted pause indicator is displayed. Press ¸ to resume program execution. For example, INPUT during program execution displays: Programming 10-11