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
Media (Service Charge Code): One RX01 Diskette (KA)  Format: RT-11,
600' Magnetic Tape (MA)  Format: RT-11

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