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

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INT 33 - PCMOUSE - GET MSMOUSE STORAGE REQUIREMENTS
        AX = 0042h
Return: AX = FFFFh successful
                BX = buffer size in bytes for functions 50h and 52h
           = 0000h MSMOUSE not installed
           = 0042h functions 42h, 50h, and 52h not supported
SeeAlso: AX=0050h

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