X-Hacker.org- Ralf Brown's Interrupt List (Part 1,2) - int 33 - ms mouse

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INT 33 - MS MOUSE - GET SOFTWARE VERSION AND MOUSE TYPE
        AX = 0024h
Return: AX = FFFFh on error
        otherwise,
            BH = major version
            BL = minor version
            CH = type (1=bus, 2=serial, 3=InPort, 4=PS/2, 5=HP)
            CL = interrupt (0=PS/2, 2=IRQ2, 3=IRQ3,...,7=IRQ7)

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