Segmented unit is represented as - segment : offset model can also be represented as - segment identifier : offset 分段單元可以表示成- >段:偏移量模型也也可表示成- >段標識符:偏移量
Adopting the method of top - down , the virtual memory is divided into memory mange related unit ( segment unit and page unit ) and protection mode related unit ( protection test unit , debug test unit and exception detect unit ) . data buses and control bused are designed separately for all of the units . vhdl codes are written and simulated Amex86的虛擬存儲器采用自頂向下的設計方法,把虛擬存儲器劃分為地址管理相關單元(又包括分段單元和分頁單元) 、保護模式相關單元(又包括保護測試單元、調試異常單元利異常檢測單元等) ,分別確立其數據通路和控制通路,完成了vhdl的編碼和仿真工作,通過測試程序仿真驗證了其功能的正確性并測定了基本性能。