J. C. Alderman, Applied Data Research, Atlanta, Georgia

A sophisticated handler package for the TC58 IBM compatible

magtape controller in the FOCAL language. Data is transmitted

to/from the FNEW arrayed storage in FIELD 1. The

features of I/O overlap with program execution, defeatable

error diagnostics, and programmable tape density and unit

selection have been incorporated into the coding. Syntax is

via the LIBRARY command, and there is extensive error

checking of user calls.

The FIELD 1 resident portion of the magtape handler is removable

by other users, and the result is a general purpose

LIBRARY command handler package, capable of being linked

to any device using the interrupt. A functional argument is

transmitted to the FIELD 1 coding, and any number of numeri-

cal arguments may be evaluated.