Date   : Tue, 01 May 2007 22:15:14 +0100
From   : pete@... (Pete Turnbull)
Subject: Arthur on 5.25" media...

Jules Richardson wrote:
> Pete Turnbull wrote:

> I have/had one of those Tube podules... I can't remember if I took it over to 
> Bletchley or not. Having said that, I *think* that Dave Moore's A500 is 
> actually a little bit different and has the Tube connection logic on the PCB 
> itself - the later A500 systems gained a proper backplane and podule support. 
> In other words, two distinct flavours of A500 exist.

That doesn't surprise me at all.

>> The Arm second processor (aka Arm Evaluation System) didn't run Arthur. 
>>   It used the BBC MOS like any normal second processor, and had a very 
>> simple Executive program; a sort of monitor which could set/clear 
>> breakpoints, dump/fill memory, load, save and run programs, and not much 
>> more.  
> 
> Now, was that the same as Brazil, or was Brazil different code completely? I 
> seem to recall that the M4 and A680 have Brazil firmware, but is that true of 
> the Arm Eval Kit?

I don't know what Brazil is, so I can't answer that except to say that 
the string "Brazil" doesn't appear in the ROM, which is only 16Kbytes, 
so presumably not.  Remember the A680 post-dates the A500 and the AES by 
about 4 years.

-- 
Pete                                           Peter Turnbull
                                               Network Manager
                                               University of York