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Program event recording control system

阅读:14发布:2022-03-09

专利汇可以提供Program event recording control system专利检索,专利查询,专利分析的服务。并且PURPOSE: To decrease the overhead of a virtual calculation by making VM monitor control for simulation of a program event recording (PER) interruption unnecessary in a computer system for operating a virtual computer.
CONSTITUTION: A VM status register 22 sets an output signal line 24 to ON, when control is delivered to a virtual computer, and resets said line to OFF, when it is migrated to a VM monitor. When a migration to the VM monitor from the virtual computer is detected, a designation display register 20 is set to a state of an input signal. An updating register 21 is set by AND of a signal for showing the updating of a general register and the output of the instruction display register 20. When an updating display register in in an on-state, and the operation is migrated to the virtual computer, a switching signal of the VM status register 22 is outputted, and a program event recording (PER) interrupting signal is generated.
COPYRIGHT: (C)1987,JPO&Japio,下面是Program event recording control system专利的具体信息内容。

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