INT 31 P - DPMI 0.9+ - GET PROCESSOR EXCEPTION HANDLER VECTOR
        AX = 0202h
        BL = exception number (00h-1Fh)
Return: CF clear if successful
            CX:(E)DX = selector:offset of handler
        CF set on error
            AX = error code (DPMI 1.0+) (8021h) (see AX=0000h)
Notes:  16-bit programs receive the pointer in CX:DX, 32-bit programs in CX:EDX
        DPMI 1.0+ supports this function only for backward compatibility; use
           AX=0210h or AX=0211h instead
        not supported by MS Windows 3.0 in Standard mode
SeeAlso: AX=0210h,AX=0211h,INT 2F/AX=FB42h/BX=0021h