The solution is trap-and-emulate, the same principle later generalized in hardware virtualization extensions. V86 mode adds a special rule: since V86 tasks always run at CPL=3, if the OS sets IOPL
（一）明确网络基础资源管理制度。在《网络安全法》基础上进一步明确实名制等要求，规定任何个人、组织不得实施干扰、破坏实名制的行为，有效遏制网络犯罪“物料供应”黑灰产。对当前大量被网络犯罪及黑灰产使用的黑卡、黑号、黑线路、黑设备等加强行政监管，强化对网络异常行为的监测管控。
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"tengu_pid_based_version_locking": false,
But there are plenty of wild cards ahead, as Ullrich and others are quick to acknowledge.