X-Hacker.org- Ralf Brown's Interrupt List (Part 1,2) - int 21 - phar lap 386/dos-extender

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INT 21 - Phar Lap 386/DOS-Extender - GET SEGMENT ATTRIBUTES
        AX = 2515h
        BX = segment selector of descriptor in GDT or LDT
Return: CF clear if successful
            CL = access-rights byte for segment
            CH = use-type bit (USE16 or USE32)
        ECX<16-31> destroyed
        CF set on error
            EAX = error code
                09h invalid segment selector in BX
SeeAlso: AX=2514h

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