X-Hacker.org- Ralf Brown's Interrupt List (Part 1,2) - int 31 - dpmi 0.9 api - protected mode

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INT 31 - DPMI 0.9 API - protected mode - SET DESCRIPTOR
        AX = 000Ch
        BX = selector
        ES:DI / ES:EDI -> 8-byte buffer containing descriptor
Return: CF set on error
        CF clear if successful
Notes:  16-bit programs use ES:DI as pointer, 32-bit must use ES:EDI
        only modify descriptors allocated with INT 31/AX=0000h
SeeAlso: AX=000Bh

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