Date   : Tue, 12 May 2009 18:40:39 +0100
From   : philb@... (Phil Blundell)
Subject: net monitor - help pls!

On Mon, 2009-05-11 at 01:10 +0100, Rob wrote:
> Oh, does anybody know if there is anywhere a list of port numbers and
> control byte meanings? 

Chapter 10 of the MDFS book has a list of port numbers, and I think the
RISC OS PRMs might do as well.  If I remember right both of those do
also list the control byte meanings for the file and print server
interfaces, and maybe a couple of other protocols, but I don't think
there's a single definitive list.

> IAlso, s there a definite way of determining
> if a first packet is a scout or a immediate (extended scout) apart
> from checking it's length?

I think it's an immediate operation iff the port number is zero.
Checking the length probably won't do it because I think there are a few
immediates (machine type peek, maybe?) that don't pass any extra data in
the transmit operation.

p.