On Wed, Dec 22, 2010 at 4:01 PM, les <hlhowell@xxxxxxxxxxx> 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.
Regards,
Les H
'Inside a program talk'!
--
Regards,
Parshwa Murdia
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