| 摘要 |
PURPOSE:To rewrite the contents of plural page maps at the same time and to set the boundary of an OS area optionally by specifying a special page map No. when the contents of the page maps are rewritten. CONSTITUTION:A page map number corresponding to a process which begins to be executed is written in a map No. register 100 prior to conversion. When program execution is started, a page is selected according to the high-order bits of a virtual address AD generated by software and one physical page is selected according to the contents of the page map 101 corresponding to the page. A physical address BA consists of the low-order bits of the physical page and virtual address AD. When information is written in a page map, the map number corresponding to the corresponding process is set in a map No. register 302 and then conversion information (physical page number, etc.) is written in an address X+PAGE No.X2 corresponding to the virtual page.
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