But coordination remains a huge challenge. Weapons procurement is a glaring example. While the United States employs around 30 different weapon systems, Europe has an often duplicated 178. "Inefficient, expensive and slow," was the damning conclusion last week of the President of the European Parliament, Roberta Metsola.
Because results with NOPs were inconclusive, I tried testing with combinations of various instructions designed to dodge other resource limits. Mixing instructions that write to the integer and floating point registers showed X925 could have a maximum of 448 renamed registers allocated across its register files. Recognized zeroing idioms like MOV r,0 do not allocate an integer register, but also run up against the 448 instruction limit. I tried mixing in predicate register writes, but those also share the 448 instruction limit. Adding in stores showed the core could have slightly more than 525 instructions in flight. Adding in not-taken branches did not increase reordering capacity further. Putting an exact number on X925’s reorder buffer capacity is therefore difficult, but it’s safe to say there’s a practical limitation of around 525 instructions in flight. That puts it in the same neighborhood as Intel’s Lion Cove (576) and ahead of AMD’s Zen 5 (448).
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How to watch USA vs. Brazil for freeThe 2026 World Baseball Classic is available to live stream for free on a number of platforms:
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