33 lines
396 B
PHP
33 lines
396 B
PHP
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gdt:
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; null descriptor
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dd 0
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dd 0
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; kernel code descriptor
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dw 0xFFFF, 0x0000
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db 0x00, 0x9a, 0xCF, 0x00
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; kernel data descriptor
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dw 0xFFFF, 0x0000
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db 0x00, 0x92, 0xCF, 0x00
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; user code descriptor
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dw 0xFFFF, 0x0000
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db 0x00, 0xFA, 0xCF, 0x00
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; user data descriptor
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dw 0xFFFF, 0x0000
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db 0x00, 0xF2, 0xCF, 0x00
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; Tss
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.tss:
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dw ?
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dd ?
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.end:
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pGDT:
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dw gdt.end - gdt - 1
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dd gdt
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