Graph3 Unit: 3.0 Graphics and Turtlegraphics
The Graph3 unit (GRAPH3.TPU) is a direct implementation of the turtlegraphics driver provided by Turbo Pascal 3.0.
Graph3 combines Turbo Pascal 3.0's GRAPH.P and GRAPH.BIN into a single unit, retaining the same functionality.
If you have a Turbo Pascal 3.0 program that uses the turtlegraphics driver, the only modification you need to make is to:
1) Remove the $I GRAPH.P compiler directive.
2) Replace it with a reference to the Crt unit and the Graph3 unit in your
program's uses clause.