Kuredjian, Michael wrote:
... It seems as through IBM is modernizing the arch to handle more OOE/Superscalar execution as they make a push to SOA and e-business models.
IBM invented superscalar. It was used _heavily_ on the mainframes of old (bipolar ... before CMOS). Those older processors also used out of order execution, but maintained strict order of memory accesses. Though superscalar, 21st-century mainframes don't execute anything out of order. However, memory accesses are allowed to be out of order so long as the outcome is not affected.
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