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发明授权
US07996659B2 Microprocessor instruction that allows system routine calls and returns from all contexts 有权
允许系统例程调用和从所有上下文返回的微处理器指令

Microprocessor instruction that allows system routine calls and returns from all contexts
摘要：
An apparatus comprises register means for storing a return context upon initiation of a supervisor call instruction and restoring means to restore a privilege level and status register upon execution of a supervisor return instruction. The supervisor call instruction can be called from all contexts.
摘要（中）：

一种装置，包括：登记装置，用于在启动监督程序调用指令时存储返回上下文;以及恢复装置，用于在执行管理程序返回指令时恢复特权级别和状态寄存器。 可以从所有上下文调用主管调用指令。

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