[Simh] RX image format

[Bob Supnik]

A SimH device image must contain a data item for <every> physical 
location on the device.  Even if DEC software doesn't use track 0, IT 
MUST BE PRESENT, because diagnostics might use it, or non-DEC software 
might use it.

A correct image should have 77 * 26 = 2002 blocks of 128bytes, or 
256,256 bytes.

I have an RT V4 floppy distro kit, and it boots correctly.

/Bob Supnik

> Message: 5
> Date: Sun, 7 Sep 2008 16:38:02 +0400
> From: "Alexander Voropay" <alec at sensi.org>
> Subject: Re: [Simh] RX and Track 0
> <snip>
>   
> Should I add an emty track at the biginning of the floppy image to
> skip a Track=0 ?
>
>  SIMH's emulated RX-11 controller reads Sector=1 Track=1
> at the offset 0D00H = 3328 = 128*26 in the image, a middle
> of the RT-11 directory instead of the boot sector.
>
> --
> -=AV=-