This document describes BASCHART, a computer aid designed to decipher and automatically flow chart computer program logic; it also provides the computer code necessary for this process. Developed to reduce the labor intensive manual process of producing a flow chart for an undocumented or inadequately documented program, BASCHART will automatically produce an annotated flow chart for any program that uses WANG (MVP) BASIC-2 programming language. The development of the BASCHART program is summarized, and the hardware requirements are described. A user's guide includes operating procedures and an example of a program flow chart. Three appendices provide (1) a system diagram showing the interrelationships between the program subsystems and a listing of the subroutines with brief descriptions of their purpose; (2) definitions of the BASCHART alphanumeric variables; and (3) the WANG BASIC-2 computer code for the flow charting program. (LMM)