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From: peterk@cbmger.UUCP (Peter Kittel GERMANY)
Newsgroups: comp.sys.amiga.emulations
Subject: Re: Bridgeboard + Fast Memory?
Message-ID: <959@cbmger.UUCP>
Date: 14 Mar 91 17:57:58 GMT
References: <32790001@hp-lsd.COS.HP.COM>
Reply-To: peterk@cbmger.UUCP (Peter Kittel GERMANY)
Organization: Commodore Bueromaschinen GmbH, West Germany
Lines: 19

In article <32790001@hp-lsd.COS.HP.COM> davem@hp-lsd.COS.HP.COM (Dave K. Martin) writes:
>
>Why is 6-meg of fast memory the ideal configuration for a system with a
>bridgeboard?  Does it have to do address contention on the Zorro buss?
>
>This is of some concern because I have an XT bridgecard and a Microbotics 
>8-up with 6-meg along with 1-meg of chip ram on the motherboard.  What happens
>if I add another 2-meg to the 8-up card?

Problem is, you only have 8 MB autoconfig address space. Normally a RAM
card is configured before a bridgeboard, so after configuring this RAM
card, all available address space is already given there, and nothing
remains for the bridgeboard, which also needs some space (was it 512 KB?).
So your bridgeboard wouldn't be able to autoconfig, and thus remain
sleeping, plainly not useable, sad...

-- 
Best regards, Dr. Peter Kittel  // E-Mail to  \\  Only my personal opinions... 
Commodore Frankfurt, Germany  \X/ {uunet|pyramid|rutgers}!cbmvax!cbmger!peterk