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TranslationMobile

段描述符

"segment" in Chinese : n. 1.(自然形成的)段落；斷片；部分；分節(jié)；段；節(jié)。 ...
"descriptor" in Chinese : n. 【自動化】(數(shù)據(jù)處理中表示某一項目的)主字碼。
"descriptor for a segment" in Chinese : 段的描述符; 段的描述子
"descriptor segment" in Chinese : 描述符段
"absolute address in a segment descriptor" in Chinese : 段描述符中的絕對地址; 段描述子中的絕對地址
"descriptor generator working segment" in Chinese : 描述符產(chǎn)生器工作段; 描述符生成程序工作段
"empty descriptor segment" in Chinese : 空描述段
"exception processing descriptor segment" in Chinese : 異常處理描述符段; 異常處理描述符區(qū)段
"parameter segment descriptor" in Chinese : 參數(shù)段描述符
"parameter stack segment descriptor" in Chinese : 參數(shù)棧段描述符
"presence bit in a segment descriptor" in Chinese : 段描述字中的存在位
"segment descriptor block" in Chinese : 段描述符塊
"segment descriptor format" in Chinese : 段描述符格式
"segment descriptor identification" in Chinese : 段描述符識別
"segment descriptor queue" in Chinese : 段描述符隊列

Examples

This default ldt segment descriptor is stored in the gdt
這個默認ldt段描述符存儲在gdt中。
By default it contains a null segment descriptor
默認情況下，其中會包含一個空的段描述符。
The corresponding segment descriptor stored in the gdt has following values
存儲在gdt中的對應(yīng)段描述符的值如下：
Each segment descriptor is eight bytes long and represents a single segment in memory
每個段描述符長8個字節(jié)，表示內(nèi)存中的一個段。
A 13 - bit index that identifies the corresponding segment descriptor entry contained in the gdt or ldt
一個13位的索引，用來標識gdt或ldt中包含的對應(yīng)段描述符條目
Each time a segment selector is loaded on to segment registers , the corresponding segment descriptor is loaded from memory into a matching non - programmable cpu register
每次將段選擇器加載到段寄存器中時，對應(yīng)的段描述符都會從內(nèi)存加載到相匹配的不可編程cpu寄存器中。
Since a segment descriptor is eight bytes long , its relative address inside the gdt or ldt is obtained by multiplying the most significant 13 bits of segment selector by 8
由于一個段描述符的大小是8個字節(jié)，因此它在gdt或ldt中的相對地址可以這樣計算：段選擇器的高13位乘以8 。
For example , if the gdt is stored at address 0x00020000 and index specified by segment selector is 2 , then the address of corresponding segment descriptor is equal to 0x00020000
例如，如果gdt存儲在地址0x00020000處，而段選擇器的index域是2 ，那么對應(yīng)的段描述符的地址就等于( 2 * 8 ) + 0x00020000 。
The ti table indicator flag that specifies whether the segment descriptor is included in gdt if the value is 0 ; if the value is 1 , then the segment descriptor is included in the ldt
Ti ( table indicator )標志指定段描述符是在gdt中還是在ldt中，如果該值是0 ，段描述符就在gdt中；如果該值是1 ，段描述符就在ldt中。
The segment descriptor entry contains both a pointer to the first byte in the associated segment represented by the base field and a 20 - bit value the limit field which represents the size of the segment in memory
段描述符條目中包含一個指針和一個20位的值（ limit字段），前者指向由base字段表示的相關(guān)段中的第一個字節(jié)，后者表示內(nèi)存中段的大小。