Date   : Tue, 14 Jul 2009 17:49:43 +0100
From   : jumbos.bazzar@... (Mark Haysman)
Subject: BBC B ROMs with Tube Host

> It should be easy enough to tell from the ROM image whether it contains
> the host code or not, without having to actually run it up in a machine.
> The presence of the string "TUBE HOST" would be fairly indicative :-)

That's a pretty good sign....

> or failing that, you could look for instructions which access the Tube
> registers at &FEEx.

However, that isn't....ADFS? DFS 0.98? Both are tube compliant so use &FFE5, 
JSR&406 etc, but have no Host Code.

Mark.