[Simh] Mag tape interface

[Villy Madsen]

Some years ago, I wrote a program in delphi that would read a "tape image" created by the SimH VAX tape interface.  I can send you a copy if you are interested...

Villy




----- Original Message -----
From: Jon Elson <elson at pico-systems.com>
Date: Thursday, March 29, 2012 11:24
Subject: [Simh] Mag tape interface
To: simh at trailing-edge.com

> Well, I am now really close to having a mag tape drive working on
> a Linux system.  The docs confused me, so the bit ordering is
> backwards.  That will be easy to fix.  It is not 
> detecting file marks,
> they just show up as zero-length records.  I'll have to 
> track that
> down.
> 
> What I will do next is write a program that reads in a whole
> tape to a disk file that is an exact representation of the tape.
> So, there would be a 32-bit record indicator that would be 1-65536
> for a block of data, -1 for a file mark, and -2, etc. for various
> errors.
> 
> Then, I can write programs that will extract the individual 
> files from this file
> for simple formats.
> 
> Jon
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