home *** CD-ROM | disk | FTP | other *** search
- Path: rzri6f.gsi.de!kraemer
- From: kraemer@rzri6f.gsi.de (Michael Kraemer)
- Newsgroups: comp.sys.amiga.misc
- Subject: Re: The PowerAmiga..
- Date: 10 Apr 1996 12:19:20 GMT
- Organization: Technische Hochschule Darmstadt
- Message-ID: <4kg908$n1i@rs18.hrz.th-darmstadt.de>
- References: <4kdu5k$79m@pellew.ntu.edu.au> <4kfo42INN8d9@maz4.sma.ch> <1208.6674T681T68@studbox.uni-stuttgart.de>
- NNTP-Posting-Host: rzri6f.gsi.de
-
- In article <1208.6674T681T68@studbox.uni-stuttgart.de>, Snowy@studbox.uni-stuttgart.de (Nicholas Stallard) writes:
- >
- > Hi,
- >
- >
- > Valerio Ortelli had the following to say about Re: The PowerAmiga.. ..
- > VO> In article 79m@pellew.ntu.edu.au, jamesm@it.ntu.edu.au (James McArthur)
- > VO> writes:
- > >> Anyone know if the PowerAmiga will be 32bit, or 64bit?
- > >>
- > >> I would think that if they are designing a new computer they should know
- > >> this by now?
- > >>
- >
- > VO> The CPU will be PPC 604, that means 32 bits, but today's graphics card
- > VO> are 64 bits and the next PPC is the 620: 64 bits. The Power Amiga will
- > VO> probably be 32-64 bits capable so when the 620 will be standard it will
- > VO> accept it and be at the same level of the graphic card (or chip).
- >
- > VO> I hope they will avoid what happened with the 3000: 32 bit CPU and 16 bit
- > VO> chips.
- >
- > I was wondering actually.. everyone is after these 64bit chips but.. the snag on it
- > is.. if I only have software that is 32 bit i can not use the full potential
- > anyway :(
- >
-
- It's more or less only the marketing types who are "after these 64bit chips"
- because they can sell the impression that 64bit is more (== better) than 32bit.
- Very few people really need it or have a minor advantage from it.
- 64bit normally means support for 64bit integer registers and pointers
- (64bit floating point is supported by almost every current CPU anyway,
- including 68k).
- I don't see any app on the Amiga that could profit from 64bit addressing.
- 32bits give you memory space up to 4GB. If you don't have the money
- to spend on 4GB, then you don't need 64bit addressing anyway.
- 64bit integers make even less sense.
- This has little to do with the data path width which may be some multiple of
- 32bit.
-
- Commercial platforms occasionally use 64bit architectures for very large databases.
- Even the different UNIXes have just started to define a common API for 64bit
- (which is needed to work with very large regular files > 2GB ).
-