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- Newsgroups: comp.sys.atari.st.tech
- Path: sparky!uunet!spool.mu.edu!yale.edu!ira.uka.de!rz.uni-karlsruhe.de!stepsun.uni-kl.de!sun.rhrk.uni-kl.de!peter
- From: peter@rhrk.uni-kl.de (Gunter Bitz)
- Subject: Re: 16-bit RAM Access on Falcon ?
- Message-ID: <1992Nov8.132805.1903@rhrk.uni-kl.de>
- Organization: University of Kaiserslautern, Germany
- References: <1992Oct28.102522.21044@ugle.unit.no> <1992Nov1.183817.15596@rhrk.uni-kl.de> <1992Nov5.213100.423@prime.mdata.fi>
- Distribution: eunet
- Date: Sun, 8 Nov 1992 13:28:05 GMT
- Lines: 40
-
- >>
- >>> Is it true that the Falcon030 only has 16 bit RAM Access ?
- >>
- >>Ok. My answer is simply : YES !
-
- >Excuse me, but where did you get that from? Sam Tramiel stated in the
- >GEnie conference a long time ago that it has a 32-bit bus. Also,
- >somebody tested Falcon with QIndex and got 471% for the CPU memory
- >test, compared to a normal ST. I don't see how this could be possible
- >with a 16-bit bus. So please tell me (us) where this information came
- >from?
-
- I don't know what Qindex does, but I testet the following:
- A short loop (which fits completely in the processor cache) like that:
- ll:
- move.w d0,(a0)+
- dbf d7,ll
- and another like
- ll:
- move.l d0,(a0)+
- dbf d7,ll
-
- The result was that filling the same amount of memory with longwords is a bit
- faster than filling with words, but not twice as fast as it should be on a
- r e a l 32 bit machine. I'm sorry about that
- I also know that Atari states that the Falcon is a real 32 bit computer.
- I also asked a few people at the Duesseldorf Atari Messe and they told me the
- same stuff. My opinion is that Atari tries the same way as Apple with their
- 'small' Macintosh.
- Anyway most of the 'Users' don't recognize a difference between
- a 16 or 32 bit bus.
-
- Perhaps somebody might try the same as I did and report to this group !
-
- But anyway even with this small bus the Falcon is a interesting computer
- and I personally will buy one anyway !
-
- cu
- Gunter
-
-