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portland-os/doc/internal/gdt.txt
Benji Dial 63167f223e lots of progress
currently, BAR fields of IDE drives are all returning zero, and the ATA read function isn't working. i'm not sure why.
i'm going to work on VESA next, and come back to the IDE driver later
2020-08-11 11:33:21 -04:00

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0x08: 0x0000.0000 - 0x0003.7fff (code)
0x10: 0x0000.0000 - 0x1fff.ffff (data)
0x18: task
0x20: user code
0x28: user data