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segment descriptor中文是什么意思

  • 段描述符

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  • 例句与用法
  • This default ldt segment descriptor is stored in the gdt
    这个默认ldt段描述符存储在gdt中。
  • By default it contains a null segment descriptor
    默认情况下,其中会包含一个空的段描述符。
  • The corresponding segment descriptor stored in the gdt has following values
    存储在gdt中的对应段描述符的值如下:
  • Each segment descriptor is eight bytes long and represents a single segment in memory
    每个段描述符长8个字节,表示内存中的一个段。
  • A 13 - bit index that identifies the corresponding segment descriptor entry contained in the gdt or ldt
    一个13位的索引,用来标识gdt或ldt中包含的对应段描述符条目
  • 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
    每次将段选择器加载到段寄存器中时,对应的段描述符都会从内存加载到相匹配的不可编程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
    由于一个段描述符的大小是8个字节,因此它在gdt或ldt中的相对地址可以这样计算:段选择器的高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存储在地址0x00020000处,而段选择器的index域是2 ,那么对应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 )标志指定段描述符是在gdt中还是在ldt中,如果该值是0 ,段描述符就在gdt中;如果该值是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
    段描述符条目中包含一个指针和一个20位的值( limit字段) ,前者指向由base字段表示的相关段中的第一个字节,后者表示内存中段的大小。
  • 更多例句:  1  2
  • 百科解释
In memory addressing for Intel x86 computer architectures, segment descriptors are a part of the segmentation unit, used for translating a logical address to a linear address. Segment descriptors describe the memory segment referred to in the logical address.
详细百科解释
  • 推荐英语阅读
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Last modified time:Thu, 14 Aug 2025 00:29:56 GMT

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