The 386 solves this by repurposing RPT (Repeat). Normally, RPT implements loops -- it re-executes a micro-instruction while decrementing a counter, as we saw in the multiplication post. But when a protection test is in flight, the hardware suppresses RPT's counter-decrement and turns it into a pure stall: the sequencer freezes until the PLA result arrives.
Варвара Кошечкина (редактор отдела оперативной информации)
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generate code in multiple programming languages
Nature, Published online: 24 February 2026; doi:10.1038/d41586-026-00517-9