Date   : Tue, 07 Oct 2008 17:26:49 +0100
From   : michael.firth@... (michael.firth@...)
Subject: *CONFIGURE Q

> -----Original Message-----
> From: 
> bbc-micro-bounces+michael.firth=bt.com@... 
> [mailto:bbc-micro-bounces+michael.firth=bt.com@...
> .uk] On Behalf Of Phill Harvey-Smith
> Sent: 07 October 2008 00:34
> To: bbc-micro@...
> Subject: [BBC-Micro] *CONFIGURE Q
> 
> Hi,
> 
> I've been using BeebEm and Mess for development of my code, I have 
> things working on the BBC-B/B+ and want to test them on the Master,
> but have run accros a problem in Mess.
> 
> Mess seems to emulate MOS 3.50, whereas BeebEm (and my real Master), 
> both have MOS 3.20. On the 3.20 machine, both real, and 
> emulated I can 
> reset the cmos, use a of *fx162,6,255 *fx162,7,255 to replug the roms
> and then use *configure commands to set things up how I want them, 
> default FS, screen mode etc.
> 
> However on Mess, I hold down 'r' to reset the cmos, and then 
> do a break 
> as instructed, the machine then resets into basic with adfs enabled. 
> Fine, I should be able to configure things with *configure, however 
> typing something like *configure file 9 just prints 13 (the 
> rom number 
> for adfs), and does not change the filesystem.
> 
> What if anything am I doing wrong ?
> 
BeebEm (at least recent versions) actually have both the 3.20 and 3.50 ROMs
available, have a look in the 'Readme' for how to switch between them.

BeebEm running 3.50 ROMs also has the same behaviour as you report, while
my real Master, which has a 3.50 upgrade purchased from eBay works fine.

Thus either the version of the OS ROMs in the two emulators is corrupted,
or something is lacking in the hardware emulation which 3.50 needs and 3.20
doesn't.

I'll try and get the 3.50 code sucked from my real Master tomorrow to try
and compare with the BeebEm image.

Michael