Re: C= parts: Amiga ROMs

From: Craig S. Levay (levay_at_tcfreenet.org)
Date: 2000-12-12 07:21:57

Hello guys,
  Have one Amiga 1000 at home and when my trusty local Amiga tech guy
popped the lid for cleaning and maintenance (it slept in someones barn for
some years), he found someone had done a homemade hack of RAM expansion of
an increase to 1 meg....he had never seen a homebuilt hack like it before.

  It uses Kickstart 1.3.......Gotta set it up again in the spring when it
is warm in garage.  Already have the C=64 set up in one room and the C=128
in the other room. Running out of space....:-/

  Craig LeVay
   Oakdale, Minnesota


On Mon, 11 Dec 2000, Daniele Gratteri wrote:

> ----- Original Message -----
> From: "Joe Torre" <joetee@mindspring.com>
> To: <cbm-hackers@dot.tml.hut.fi>
> Sent: Saturday, December 09, 2000 11:02 PM
> Subject: Re: C= parts: Amiga ROMs
> 
> 
> > No, not quite true. (but a 1M KS would be hackable when its
> > available!)
> 
> The sockets for the ROMs (on my A600 and A1200) have got two unused pins,
> making these computers read for a new KS!
> 
> >  The 3.1 kickstart is also 512K.  The cool feature being that the
> > datapath to the roms is 32bits wide!
> 
> Yes, I was in error.
> 
> > Kickstart being spread accross 2 x 128K x 16bits chips = 512K.
> 
> So, on the A600 the KS chip is 256K x 16bit = 512Kb?
> 
> > Thus an A1200 has a data path twice as wide (32) and twice as fast
> > (14Mhz) as A500-A1000-A2000 models, but still 512Kbyte.
> 
> Only the Kickstart 3.2 of the Walker prototype was 1Mb, I think.
> 
> Ciao!
>         Daniele Gratteri (dan.il.mito@ciaoweb.it)
>          (ICQ N 53943994 - FIAT1100D in IRC)
> 
>                   CBM & AMIGA FOREVER!
> 
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