[Simh] Making tape/disk images

[Ken Cornetet]

Well, the file marks would be obvious. The block size would have to be specified by the user. The lack of tape structure would seem to limit the usefulness a great deal, but I guess it could still be useful in some cases, and it seems pretty easy to implement.

Here's how I'd see it being useful:

1. Create tar, zip, or whatever file on host OS.
2. Copy file (with random name) into virtual tape directory.
3. Read tape in guest OS extracting files.
4. Delete host file (or perhaps have option to make simh delete after reading EOF)
5. Repeat as required.

Output could be handy too. Have simh create files in the specified folder using the epoch time and a sequential number for the "file number" in the virtual tape as the host file name.

The more I think about this, the better I like it. This would make it very simple to get files into and out of a guest where no networking exists. No more creating tape images, stopping the emulation, attaching tape files, starting the emulation.

-----Original Message-----
From: simh-bounces at trailing-edge.com [mailto:simh-bounces at trailing-edge.com] On Behalf Of Al Kossow
Sent: Monday, May 03, 2010 3:35 PM
To: simh at trailing-edge.com
Subject: Re: [Simh] Making tape/disk images

On 5/3/10 12:30 PM, Tim Newsham wrote:
> the code that reads tape images in simh can also
> read from a directory instead of a tape image.
>

and create what type of on-tape directory structure?

tape image code knows of nothing above tape blocks and
file marks.



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