Set Debug Watchpoint


                 This  function   will  set  a  debug  watchpoint  at  a
                 specified linear address.

            To Call

                 AX = 0B00h
                 BX:CX = Linear address of watchpoint
                 DL = Size of watchpoint (1, 2, or 4)
                 DH = Type of watchpoint
                      0 = Execute
                      1 = Write
                      2 = Read/Write

            Returns

                 If function was successful:
                 Carry flag is clear
                 BX = Debug watchpoint handle

                 If function was not successful:
                 Carry flag is set

            Programmer's Notes

                 None