Path: utzoo!attcan!uunet!know!sdd.hp.com!hplabs!hpfcso!hpfelg!koren
From: koren@hpfelg.HP.COM (Steve Koren)
Newsgroups: comp.sys.amiga.hardware
Subject: Re: Hurricane 2800 doesn't like 16 bit fast ram?
Message-ID: <16530003@hpfelg.HP.COM>
Date: 10 Oct 90 14:09:40 GMT
References: <16530001@hpfelg.HP.COM>
Organization: HP Elec. Design Div. -FtCollins
Lines: 17


> I read this when I wrote a review of the Hurricane boards.  It's total 
> nonsense.

> when the documentation says it's a bug in the Amiga architecture that prevents
> data caching of 16 bit memory, it is telling you a baldfaced lie.

> That's true.  AmigaOS 1.3 knows about 68020s, but not 68030s.  So the I-Cache
> is automatically enabled, but not the D-Cache.  The hardware restriction for 

Ok, thanks for clearing this up, Dave.  I will try using I-cache and not
D-cache and see what happens.  Their supplied "hurricaneconfig" program
enables both, but I can probably use SetCPU to turn off the one promptly
thereafter.  Not looking forward to loosing the performance (D-cache
makes a big difference), but I guess ya gotta do what ya gotta do.

  - steve