Date   : Wed, 03 Jan 2007 00:53:40 +0000
From   : splodge@... (Richard Gellman)
Subject: MOS ROM Structure

Andrew Benham wrote:
> Richard Gellman wrote:
> 
>> Obviously this requires making a new 1Mbit ROM chip with a patched 
>> ADFS in it. So my questions are thus:
>>
>> Is this a standard 128Kbyte ROM, or is there unusual/unexpected 
>> address decoding going on to map in the 16K OS ROM?
>> Does the chip use a standard pinout? My intention is to use a 27C1001 
>> (128k x 8) if compatible.
>> In what order are the ROMs laid out? I assume the paged ROMS are in 
>> the same order they appear in *ROMS, but where would the MOS ROM fit, 
>> I would hazard a guess at the end after ROM "15" (TERMINAL)?
> 
> The info at
>       http://www.adsb.co.uk/bbc/bbc_master.html
> may be of some help to you.
> 
> 

Ah. Thankyou kindly. Thats exactly the information I need :)

-- Richard