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- Path: sparky!uunet!mcsun!sunic!aun.uninett.no!nuug!fredrik.atari.no!jornmoe
- From: jornmoe@fredrik.atari.no (Joern Moe)
- Newsgroups: comp.sys.atari.st
- Message-ID: <H.sS5cw_p9qpc@fredrik.atari.no>
- Organization: Atari Corp. Scand. AB (Norway)
- Subject: Re: More Official Falcon Specs wanted
- References: <A14190@F.maus.de> <1992Aug26.105113.14515@hsr.no>
- <10004@uqcspe.cs.uq.oz.au>
- <92241.171245RESCHKE@DMSWWU1A.UNI-MUENSTER.DE>
- Reply-To: jornmoe@fredrik.atari.no
- X-Software: HERMES GUS 1.03 Rev. Apr 14 1992
- Date: Wed, 02 Sep 1992 12:54:14 MET
- Lines: 30
-
- In <92241.171245RESCHKE@DMSWWU1A.UNI-MUENSTER.DE>, Julian F. Reschke writes:
- >
- >In article <10004@uqcspe.cs.uq.oz.au>, warwick@cs.uq.oz.au (Warwick Allison)
- >says:
- >>This is an interesting question, since I believe even the more recent
- >>Amigas have something like a 1-meg limit on "chip memory". The blitter
- >>on the ST had no such restrictions and the Falcon blitter is fully
- >>compatible with that one. I supose it could, technically be limited to
- >>4Meg - since the entire ST could only (theoretically :-]) handle 4Meg.
- >
- >The ST blitter definitively is NOT limited to 4MB - I already used it for
- >blitting on a graohics card (at $C00000). It *might* be limited to 16M.
- >
- >___________________________ cut here _____________________________________
- >JULIAN F. RESCHKE, HENSENSTR. 142, D-W4400 MUENSTER
- >EMAIL: JULIAN@MATH.UNI-MUENSTER.DE, JR@MS.MAUS.DE
- >____________________ correct me if I'm wrong _____________________________
-
- The blitter's adress registers are actually 32bit, but only 24 (vel actually
- only 23 bit + UDS/LDS logic) is used, so it is definitivly 'limited' to 16MB.
- This might only apply tho the old ST Blitter, but I can't see why it shouldn't
- apply to the 16MHZ Blitter in the Falcon. Actually, if Atari decided to, it
- should be easy to enhance the blitter to be abel to address the whole 32 bit
- range (4GB)!!
-
- --
- _______________________________________________________
- / Joern F. Moe / All above is my own personal opinion! \
- / Oslo, Norway / Any lack of opinion above is also mine! \
- -----------------------------------------------------------
-