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- Newsgroups: comp.sys.amiga.hardware
- Path: sparky!uunet!mcsun!ub4b!news.cs.kuleuven.ac.be!philipm
- From: philipm@cs.kuleuven.ac.be (Philip Marivoet)
- Subject: Reply to henning (about RETINA)
- Message-ID: <1992Nov17.125647.8908@cs.kuleuven.ac.be>
- Sender: news@cs.kuleuven.ac.be
- Nntp-Posting-Host: pluto.cs.kuleuven.ac.be
- Organization: Dept. Computerwetenschappen
- Date: Tue, 17 Nov 1992 12:56:47 GMT
- Lines: 38
-
- Hi henning, I lost your e-mail adres so here's your reply.
-
- >I heard that the board would have something like a blitter. Is this the
- >mentioned "controller"?? I suppose no.
-
- The flyer I have does mention something about some special 'BitBlit' logic on the
- card. I suppose this is some kind of blitter. The person whom I spoke to at the
- show said that they have a whole gfx chip sitting on it. The only thing your
- processor has to do is to send it some primitive gfx-commands. They were also
- running a little demo on the card drawing lines/pixels/squares/circles in various
- resolutions. I personally thought that this was quite fast although the card
- was fitted into a non-accelerated A2000.
-
- >> ...
- >> - Supports AutoConfig(TM)
-
- >What does this mean??? If RTG is ready the board gets new firmware which
- >offers the RTG-necessary routines of the board at boot time so that every-
- >thing can be shown on the cards monitor even before the boot is finished ??
-
- MMM... something like that I suppose. It does at least mean that it should be easy
- to get it up and running together with other expansion cards. (automatic
- resolving of address space conflicts etc...)
-
- >> - Transfer rate: ca. 3.5 MB/sec, uses full capacity of the zorro-II bus
- >> (0 wait states) pixel frequency up to 90 MHz, transfer rate in own
- >> ram up to 10 MB/sec
-
- >Doesnt this block the Zorro-Bus under certain circumstances (I hope the full
- >bandwidth of the bus isnt needed all the time :-))?
-
- Nah, probably not. But if you're running some kind of animation on it, I suspect
- that you will notice the effect on other devices attached to the bus.
-
- >Henning
-
- -Ives
-
-