Int 33 Fn 006C  U - Truedox Mouse Driver V4.01 - Get/set Hardware Paramet  [M]

   AX = 006Ch
   BX = new IRQ (0003h or 0004h), or 0000h to get current values only
   CL = new IRQmask (sent to 8259)
   DX = new base I/O port

Return: BX = current IRQ
   DX = light pen state???

Note:  this is the mouse driver for the Dell Dimension series of computers, by
     TRUEDOX Technology Corporation

See Also: AX=00A1h,AX=0666h