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- Path: sparky!uunet!cs.utexas.edu!sun-barr!olivea!gossip.pyramid.com!pyramid!cbmvax!daveh
- From: daveh@cbmvax.commodore.com (Dave Haynie)
- Newsgroups: comp.sys.amiga.hardware
- Subject: Re: RTG? And Graphics Cards???
- Message-ID: <38297@cbmvax.commodore.com>
- Date: 5 Jan 93 01:25:50 GMT
- References: <1992Dec20.053100.27207@spartan.ac.BrockU.CA>
- Reply-To: daveh@cbmvax.commodore.com (Dave Haynie)
- Organization: Commodore, West Chester, PA
- Lines: 37
-
- In article <1992Dec20.053100.27207@spartan.ac.BrockU.CA> tmc@spartan.ac.BrockU.CA (Tim Ciceran) writes:
- >In article <37899@cbmvax.commodore.com> daveh@cbmvax.commodore.com (Dave Haynie) writes:
-
- >>It uses a separate VGA card on the PC bus, driven by the oMniBus bridge. The
- >>A3000, VGA, and monitor plug into the oMniBus, which controls switching between
- >>the two outputs.
-
- >Nicely done. I take it that you are currently restricted to using cards based
- >on the Tseng chipset?
-
- I don't know. That's the card they were using. I imagine other chipsets would
- be possible with the right ivga.library (or some configuration facility, I don't
- know how much alike SVGA register maps are once you start using "S" features,
- VESA or no VESA).
-
- >BTW, Did the developers give any indication as to the price? Not everybody
- >gets a freebie I bet!
-
- I can't imagine it's too expensive, but I don't know the price. That's one of
- the things I'm planning to ask about, since lots of people seem interested.
-
- >Would a Zorro-III specific configuration make a significant difference in
- >performance?
-
- Not with an ISA-based display card. You can, if you're lucky, drive ISA
- somewhat faster than 8MHz, since most cards are simple and aren't
- clocked. If you had a VGA card that would run 0-wait states at 16MHz,
- you might see some advantage in a Zorro III implementation. Zorro III
- would certainly be an option if they integrated the VGA chip into the
- oMniBus card, since an EISA or local bus version of the video chip would
- go much faster and really make Zorro III worthwhile.
-
- --
- Dave Haynie / Commodore Technology, High-End Amiga Systems Design (cool stuff)
- "The Crew That Never Rests" {uunet|pyramid|rutgers}!cbmvax!daveh BIX: hazy
- SCIENCE: "I'll believe it when I see it"
- RELIGION: "I'll see it when I believe it"
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