Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!wuarchive!julius.cs.uiuc.edu!psuvax1!psuvm!cunyvm!l98cc
From: L98CC@CUNYVM
Newsgroups: comp.sys.amiga.tech
Subject: Re: Simple Frame Buffer boards
Message-ID: <90345.181101L98CC@CUNYVM.BITNET>
Date: 11 Dec 90 23:11:01 GMT
References: <916@boing.UUCP> <23699@grebyn.com> <918@boing.UUCP>
 <1411@mpirbn.mpifr-bonn.mpg.de> <920@boing.UUCP>
Organization: City University of New York/ University Computer Center
Lines: 36

In article <920@boing.UUCP>, dale@boing.UUCP (Dale Luck) says:
>
===== some stuff deleted. =====
>
>This is a MAJOR benefit. Ease of programming.
>

I agree!

===== some more stuff deleted ======

>IMHO the benefits of a complete memory mapped frame buffer far outweigh
>the costs giving up 1-2M of address space on the bus. The benefits of
           *******************************

Assuming

1) I am willing to give up 2 meg space but not expansion ram space.

2) I want the design to be compartible with all brands of Amiga.( Maybe
   some little mods for A500 and A1000. )

3) I do not want to violate any hardware design rule set by CBM. ( i.e.
  do not use reserved address space etc.. )

4) I am actually designing a frame buffer :-)

Where do I find the 2 meg of address space to give up? ( This is neither a
crude cynisism or a flame.  I really do not know. )

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