The V86 return path is one of the longest microcode sequences in the 386. It pops nine DWORDs from the stack -- EIP, CS, EFLAGS, ESP, SS, ES, DS, FS, GS -- compared to three for a normal IRET. The microcode then sets up fixed access rights for every segment register:
When the PLA result arrives, the stall lifts and execution resumes -- either continuing forward (test passed) or redirecting to a fault handler.
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17:32, 27 февраля 2026Мир，这一点在safew官方版本下载中也有详细论述
4.8 402. 移掉 K 位数字