computer-go: Re:Is the Go Modem Protocol used in actual tournaments ?

[Francois Grieu <fgrieu@xxxxxxxxxxx>]

Peter Smith wrote

> A reference implementation (of GMP) would be a big help.
Unfortunately we have at least two different sources floating
around (not counting CGFCOM.DLL). One comes with the definition
of the standard by David Fotland, the other is by William Shubert
and is in goDummy-1.0.4, available at
<http://www.igoweb.org/~wms/comp/cgoban/index.html>
or nearly equivalently the development version of GnuGo
<http://www.lysator.liu.se/~gunnar/gnugo/devel.html>


And we have 3 nearly identical sources for the standard, plus a subset

1) Old:
<ftp://ftp.nuri.net/Go/programs/protocol.Z>

2) David Fotland's
<http://www.smart-games.com/modemprotocol>
Differs from 1 only by the corrected value of two constants
# define QUERYSTRING 0x200
# define QUERYMULTI 0x20f

3) New:
<http://www.britgo.org/tech/gmp.html>
Differs from 1 only by formatting and comments indicating that
- QUERYSTRING should be changed as in 2 (no comment for QUERYMULTI)
- the format of Query is 1EEEEEEEEE not 1EEEEEEE
Changes in 3 come from a post on this list by Joe Author who wrote
in addition that, even after fix 2, the sample code given
>  only answers queries for extended commands 0 and 15,
>  although the protocol definition is explicit that any such query
>  should be answered including (negatively) for unknown extended
>  commands.
4) Subset: Tournament Communication Protocol
<http://www.etl.go.jp/etl/suiron/~tazima/cgf99/CGF99_CFP.html#a>


Among the thing I do not get in the protocol: should  there be a
4 second timeout and retry? David Fotland's code seems to do it,
but I could not find that in William Shubert's code.


  Francois Grieu