home *** CD-ROM | disk | FTP | other *** search
- Path: FreeNet.Carleton.CA!de351
- From: de351@FreeNet.Carleton.CA (K. C. Lee)
- Newsgroups: comp.sys.amiga.programmer
- Subject: Re: CHIP RAM speed test resul
- Date: 6 Apr 1996 14:52:23 GMT
- Organization: The National Capital FreeNet
- Sender: de351@freenet3.carleton.ca (K. C. Lee)
- Message-ID: <4k60f7$imv@freenet-news.carleton.ca>
- References: <4j6jv0$1im@serpens.rhein.de> <5827.6659T112T770@mbox.vol.it> <1996Apr2.234528.8971@scala.scala.com> <8477.6667T982T2532@mbox.vol.it>
- Reply-To: de351@FreeNet.Carleton.CA (K. C. Lee)
- NNTP-Posting-Host: freenet3.carleton.ca
-
-
- Fabio Bizzetti (bizzetti@mbox.vol.it) writes:
- >
- > Perhaps using a .8/.5 micron technology would allow these goals for the Walker:
- >
- > # full AGA compatibility.
- > # single chip solution.
- > # possibility to add the AgaEXTENDER device, that does what every SVGA chip
- > does, and much more.
-
- Sure, but what about the time required for them to redo the chip ? It
- would be a lot more productive simply to add a SVGA chip. :) You get
- today's performance of SVGA accelerators today. Not some 10 years old
- technology 2-3 years down the road.
-
- The AgaEXTENDER is still on paper. every SVGA chip does more today than a
- piece of vapourware. What's good is a 5 zillion colours superdouper AGA
- Extender if the games developer don't have it in their hands ? I can come
- up with better designs augmenting SVGA chips with external Copper.
-
- > I believe that the problem of the A1200's can't be solved in a different way
- > than the one the AgaEXTENDER's offers, because using a SVGA board through the
- > PCMCIA port will not be a big deal (and will be more expensive than many
-
- The PCMCIA port is useless for a high performance SVGA accelerator as it
- only has a 16-bit bus, but still it is faster than the chip bus. Not to
- mention the faster 64-bit blitters still running at full speed. Oh yeah,
- some of the chips have a FIFO for queuing CPU commands.
-
- > low-end users are disponible to afford). Of course the CPU connector is busy
- > for a 68030 board, that anyway is still not sufficient to do on a SVGA what
-
- Agreed. The 14 MHz trap door bus could have been a perfect place for it.
- Unfortunately no one have the far sight to have a pass through.
-
- > I believe that the A1200's doesn't deserve to be considered obsolete,
- > expecially because it's not at all (at least compared with the new Walker),
- > thus a solution should be found, that is not keeping the A1200 as it is today
-
- On the other hand why do you want to cripple the Walker which has a 40MHz
- CPU bus by insisting on not making the A1200 obsolete? I want thing the
- way it is for my A1000 five years down the road ! :) I am sick of >512K
- chip ram :)
-
- Most decent SVGA chips has a VESA support which is based on a 486 CPU bus.
- It would even be even faster than the existing ZIII bus (A3000/4000) which
- only run at 25MHz. The SVGA solution is IMHO a more compatible way of
- tackling the problem for all the existing machines. You just get different
- performance limited by your machine.
-
- > | Fabio "Maverick" Bizzetti - bizzetti@mbox.vol.it - Maverick* at IRC |
-
- K. C. Lee
-
-