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Small grammar nit in "Entering Longmode" post
'a' vs 'an'
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@@ -352,7 +352,7 @@ The Global Descriptor Table (GDT) was used for _Segmentation_ in old operating s
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Today almost everyone uses Paging instead of Segmentation (and so do we). But on x86, a GDT is always required, even when you're not using Segmentation. GRUB has set up a valid 32-bit GDT for us but now we need to switch to a long mode GDT.
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A GDT always starts with an 0-entry and contains a arbitrary number of segment entries afterwards. An entry has the following format:
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A GDT always starts with a 0-entry and contains an arbitrary number of segment entries afterwards. An entry has the following format:
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Bit(s) | Name | Meaning
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--------------------- | ------ | ----------------------------------
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