About programing, a general question
b330bkn at gmail.com
Wed Dec 22 18:35:59 UTC 2010
On Wed, Dec 22, 2010 at 4:01 PM, les <hlhowell at pacbell.net> wrote:
But as I recall, the alpha had some vector extensions and bytecoding
> extensions that enabled faster indexing, which is why it ran faster with
> indexed arrays ;-)
> And as to representation, if you go to assembly language the choice of
> octal or hex is often based upon the instruction declination of the
> processor. For example the 8080 was octal, because the first 2 bits had
> a specific segmentation of the instruction set, the next three could
> choose a register or memory and the final three would make a choice
> based upon the other two groups.
> In the 6800 and later motorola processors, the representation was hex,
> reflecting a broader register base and larger instruction flexibility.
> Now that we have 64 bit processors, and multiple cores, the next step
> will be a supervisor for the cores and then a new partitioning of the
> instruction word, and I expect a new notation, probably 64 base of some
> kind, because it will reflect the new reality of the core processors and
> their inherent capabilities.
> Les H
'Inside a program talk'!
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