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Re: New vax - implementation :-)
This gives us an architecture that can be both superscalar and superpipelined
(just like the Alpha :-) )
IEEE floating point:
The current floating point formats are very like IEEE formats (compared
to other pre-IEEE formats).? The F, G and H matches in layout the IEEE
Single, Double and Extended but the exponent bias is slightly different
and subnormal values are missing. By adding the three IEEE formats I
think it would require very few extra gates to make it behave like the
DEC FP instead.
Multiprocessor:
Vax have had multiprocessor support since ~forever, but it may be a good
idea to revise the interlock instructions. There are only 7 of them and
a few more would be nice. Having it in a FPGA would make it simple to
clone up many Vaxen in the same cheap chip :-)
I, for one, welcome our multi-hundred-core, superscalar VAX supercomputer
overlords.
Seriously, this would make pkgsrc bulk builds so much easier.
Is this the first FPGA implementation of a processor that can natively run
VMS?
John
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