Global Descriptor Table: Difference between revisions
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The <tt>offset</tt> is the linear address of the table itself, which means that paging applies. The <tt>size</tt> is the size of the table subtracted by 1. This is because the maximum value of <tt>size</tt> is 65535, while the GDT can be up to 65536 bytes (a maximum of 8192 entries). Further no GDT can have a size of 0. |
The <tt>offset</tt> is the linear address of the table itself, which means that paging applies. The <tt>size</tt> is the size of the table subtracted by 1. This is because the maximum value of <tt>size</tt> is 65535, while the GDT can be up to 65536 bytes (a maximum of 8192 entries). Further no GDT can have a size of 0. |
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The table |
The table contains 8-byte entries. Each entry has a complex structure: |
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[[Image:GDT_Entry.png|frame|center|A GDT Entry]] |
[[Image:GDT_Entry.png|frame|center|A GDT Entry]] |
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