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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).,详情可参考谷歌浏览器【最新下载地址】
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In addition to the first/best/last fit allocation strategy introduced in DOS 2.11, DOS 5.0 introduces three additional strategies, each of which is combined with the first/best/last fit strategy:,推荐阅读heLLoword翻译官方下载获取更多信息
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