出典: Global Descriptor Table 『フリー百科事典 ウィキペディア(Wikipedia)』 最終更新 7 May 2018, at 22:34 UTC、URL: https://en.wikipedia.org/wiki/Global_Descriptor_Table The Global Descriptor Table (GDT) is a data structure used by Intel x86-family processors starting with the 80286 in order to define the characteristics of the various memory areas used during program execution, including the base address, the size, and access privileges like executability and writability. These memory areas are called segments in Intel terminology. The GDT can hold things other than segment descriptors as well. Every 8-byte entry in the GDT is a descriptor, but these descriptors can be references not only to memory segments but also to Task State Segment (TSS), Local Descriptor Table (LDT), or Call Gate structures in memory. The last ones, Call Gates, are particularly important for transferring control between x86 privilege levels although this mechanism is not used on most modern operating systems... |
同義語・類義語 | 関連語・その他 |
---|---|
GDT | Descriptor |
Global Descriptor Table | diskríptər |
glóubəl diskríptər téibl | デスクリプター |
グロウボルゥ・デスクリプタゥー・テイブルゥ | デスクリプタゥー |
グローバル・ディスクリプタ・テーブル | [名詞] |
グローバルディスクリプタテーブル | 記述語 |
ジー ディー ティー | 記述子 |
更新日:2023年 1月 6日 |