Category: mouse/pointing device
INT 15 - SYSTEM - POINTING DEVICE BIOS INTERFACE (PS) - SET DEVICE HANDLER ADDR AX = C207h ES:BX -> FAR user device handler or 0000h:0000h to cancel Return: CF set on error AH = status (see #00522) Note: when the subroutine is called, it is passed the following values on the stack; the handler should return with a FAR return without popping the stack: WORD 1: status (see #00525) WORD 2: X data (high byte = 00h) WORD 3: Y data (high byte = 00h) WORD 4: 0000h SeeAlso: INT 33/AX=000Ch