Problems with _inpw / STATUS_PRIVILEGED_INSTRUCTION

[Christian Hirt <hirt at mbox dot ife dot uni-hannover dot de>]

Hi there!

I am porting C-sources for the control of an external device
(CCD-camera) to
cygwin. Unfortunately some problems appeared.

The executable file terminates with the message:

1084 (0) handle_exeptions: STATUS_PRIVILEGED_INSTRUCTION

I have located the point where this exception appears:

 /* attempt to clear the trigger enable bit at the target address */
  tmpval = INPW(base+0x008);
  tmpval &= 0xffdf;                   /* clear trigger bit            */

INPW is defined as follows:

#define INPW(a)  (USHORT)_inpw ((USHORT)(a))

I would be very happy if anybody brings light on this problem.

Thank you very much,

Christian Hirt

--
hirt@mbox.ife.uni-hannover.de



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