/* Setup pointer to netX interrupt state register */
      uint32_t u32DpmStatic = (DWORD)CreateStaticMapping((ptDrvDevInst->tDevInstance.ulPhysicalAddress >> 8), ptDrvDevInst->tDevInstance.ulDPMSize);
      RETAILMSG(1,(_T("HJWCFX (OS_EnableInterrupts): (fPCICard) Address to translate: %x size: %x \n"), (ptDrvDevInst->tDevInstance.ulPhysicalAddress >> 8), ptDrvDevInst->tDevInstance.ulDPMSize));
 
      tGIISRInfo.CheckPort       = TRUE;

      /* Our installable interrupt service routine, must be given a static,
         process independent, virtual mapped address to the device it will access 
         in the interrupt context. So we need to create the address mapping here */

      tGIISRInfo.PortAddr        = u32DpmStatic +

                                   ptDrvDevInst->tDevInstance.ulDPMSize -

                                   sizeof(NETX_GLOBAL_REG_BLOCK) +

                                   offsetof(NETX_GLOBAL_REG_BLOCK, ulIRQState_0);