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- Path: nntp.net-link.net!news
- From: mikew@net-link.net (Mike Williams)
- Newsgroups: comp.sys.amiga.hardware
- Subject: Re: Amiga vs. PC
- Date: 20 Mar 1996 05:53:30 GMT
- Organization: DC Productions
- Message-ID: <4io6gq$q27@leol.net-link.net>
- References: <rdingem.4ldb@grafix.xs4all.nl> <314EC196.5A75@gih.no>
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- In article <314EC196.5A75@gih.no> HAAVARD JAKOBSEN <haa_jako@gih.no> writes:
-
- > Don't think it will be needed tommorow either...
- > Prosessing on 64 bit data, what are u going to use that for???
- > Adding big numbers, more accurate dividing??
- > I really dunno, anyone got any ideas???
-
- Here's a thought: somebody with more CPU knowledge than myself feel free to
- correct me. Adding two 32 bit numbers (floating point, integer, whatever)
- takes more than 64 bits worth of input. You need 32 to take in the first
- number, 32 to take in the second number, and some more to identify what
- you're doing. On a 32 bit CPU, it takes 4 cycles to get all the numbers in
- (each one takes 2). Could a 64 bit CPU do that faster, like by grabbing each
- number and it's identifying bits in one cycle each? Or is that what we're
- talking about with the 64 bit data path the PowerPC's and Pentiums have?
-
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