110337 EXTMT: A General Purpose Magnetic Tape Handler Version: June 1982 Submitted by: N. A. Bourgeois, Jr., Sandia National Laboratories, Albuquerque, NM Operating System: RT-11 V3 or later, TSX-PLUS V2.0 or later Source Language: FORTRAN IV, MACRO-11 Memory Required: 730 Bytes Keywords: Conversions, Formatters, Magnetic Tape Handler, Utilities - RT-11, Utilities - Tape Abstract: EXTMT is a FORTRAN callable magnetic tape handler written in MACRO. It is capable of reading or writing tapes in any arbitrary format. As herein implemented, the tape is mounted on drive zero. Use the "SET" keyboard command to select tape density and lateral parity. To change the unit number, change the conditional assembly switch "CHANGE" in the assignments section of the MACRO source as desired prior to assembly of the subroutine. Complete instructions on the FORTRAN calling sequence are presented in a description section of the MACRO source. Three applications programs written in FORTRAN and one in MACRO are included with this handler. The FORTRAN programs write to (WDOSMT), read from (RDOSMT), and produce a directory of (DSMTDR) magnetic tape in DOS/BATCH format. The MACRO program (RWMT) will rewind and take offline the selected tape drive(s). Complete user instructions are included as comments within each of these programs. The subroutine, EXTMT, and the programs, DSMTDR, RDOSMT, WDOSMT and RWMT, are executable under both RT-11 and TSX-PLUS. Media (Service Charge Code): One RX01 Diskette (KA) Format: RT-11, 600' Magnetic Tape (MA) Format: RT-11