M. Adamowicz, Department of Electrical Engineering,

New York University, New York City, New York

This self-contained subroutine is for the PDP-5 with a 4K

memory and a CalComp incremental plotter. The subroutine

can move (with the pen in the up position) to locations (x, y),

make an "x" at this location, draw a line from this present

position to location (x, y) and initialize the plotter location

counters.