\addvspace {10\p@ } \addvspace {10\p@ } \contentsline {figure}{\numberline {2.1}{\ignorespaces Code Gear 間の継続}}{3}% \contentsline {figure}{\numberline {2.2}{\ignorespaces ノーマルレベルとメタレベルの継続の見え方}}{4}% \addvspace {10\p@ } \addvspace {10\p@ } \contentsline {figure}{\numberline {4.1}{\ignorespaces Layout of the virtual address space of a process and the layout of the physical address space. Note that if a machine has more than 2 Gbyte of physical memory, xv6 can use only the memory that fits between KERNBASE and 0xFE00000. Russ Cox(2018) xv6 a simple, Unix-like teaching operating system (Frans Kaashoek, Robert Morris)}}{11}% \addvspace {10\p@ }