On 2015-07-09 20:26, Eric Smith wrote:
Would anyone mind posting a short assembly snippet of a VAX vector
instruction used in context?
The only complex instruction I've ever used is the Z-80's "LDIR".
Even plain old VAX instructions can be way more complex than LDIR. :-)
There are instructions for polynomial expansion, case instructions, move
translated strings, and I can't even remember what else...
Johnny
On Jul 9, 2015, at 12:16 PM, Richard <[email protected]> wrote:
In article <[email protected]>,
Bob Supnik <[email protected]> writes:
Vectors were all the rage at the time (late 80s) because of the success
of the so-called "minisupers" like Convex and Alliant. It was just a
flash in the pan, of course; with the end of the Cold War in the early
90s, funding for HPTC dried up for a decade, and all the minisuper and
VLIW companies died out.
It may have been considered a "flash in the pan" as far as DEC was
concerned, but it certainly had a lasting presence on computing. The
simd extensions added to x86 (MMX, SSE, etc.) and other CPU
architectures are testimony to the importance of vector oriented
processing.
--
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