110793     TAPEREAD Program  Version: December 1984
 
Submitted by: Wayne L. Dernoncourt, Naval Ordnance Station, Indian
Head, MD
 
Operating System: RSX-11M V4.0  Source Language: FORTRAN IV, MACRO-11
Memory Required: 4KB to 32KW  Hardware Required: Tape Drive  Keywords:
File Management, Magnetic Tape Handler
 
Abstract: This set of routines was written to read a magnetic tape but
instead of writing it to a file, it gave you the portions of
the tape record that were desired.  This lets you analyze the
data on the fly rather than having to store the data before
analysis.  This is very useful is disk space is tight or if
you are processing classified information.  You define the
record structure in the initialization call.  Currently
limited to 3,000 characters, 80 logical records per physical
tape record and 40 sets of character moves (defined as
from/to/character count).  Included are a couple of programs
which show examples of how to use these routines along with
the difference between structured programs and unstructured
programming techniques.  The files SUBS.FTN, SI.FTN, SP1.FTN
and SI1.FTN are the main programs and SUB.FTN and BLOCKER.MAC
are the subroutines required.  Also included is the original
program that I used to derive these functions.
 
Restrictions: Some problems running under V4.1 of RSX.
 
Documentation not available.
 
Media (Service Charge Code): One RX01 Diskette (KA)  Format: FILES-11,
600' Magnetic Tape (MA)  Format: FILES-11