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Politics : Formerly About Advanced Micro Devices
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To: Scumbria who wrote (51660)3/6/1999 3:51:00 AM
From: Ali Chen  Read Replies (1) of 1573064
 
<Three years seems to be pretty standard for all microprocessors, except for ridiculously complicated ones like ... Merced.>
I see some problem with this statement.
It seems apparent that if a processor heavily
relies on explicit parallelizm that supposed to
be dispatched by a special compiler, the design
must be much simplier since you do not need
to dig deep into the stream of stupid instructions
to uncover internal parallelizm on the fly,
renaming, speculating and predicting a lot
of things. Therefore I would rather consider
the K7 as "ridiculously complicated" as compared
to a dumb machine to execute bunches of
instructions carefully prepared in advance,
in already parallel form, with predications
and prefetching. From here it follows that
the "ridiculously long" development of Merced
has some other reasons like serious internal
and/or conceptual problems. It may never see
the light.
- Ali
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