Date   : Mon, 12 Nov 2007 07:16:31 +0000
From   : mike@... (Mike Tomlinson)
Subject: BBC B+/Winchester/2nd processor

In article <229560.63813.qm@...>,
silvercreekvalley <silvercreekvalley@...> writes

>Looking at the manual it says I need ADFS/32 to use
>a Winchester and a second processor....
>
>Incidently I tested the second procesor with a regular
>BBC B (with the DNFS ROM) and it works OK, booting as
>expected.

All you need to use a second processor is a ROM with the "TUBE host
code" in it.  The DNFS has this code.  IIRC, the code is installed at
&0D00 if a second processor is detected.

As JGH says, the DNFS is of no use in your B+ as it is for an 8271 disc
controller; your machine has the 1770 controller.  However, the Tube
code should still work, I think.

Try disconnecting the Winchester - is the second processor now found?

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