Int 31 Fn 0902  P - DPMI 0.9+ - Get Virtual Interrupt State                [E]

   AX = 0902h

Return: CF clear
   AL = 00h if disabled
      = 01h if enabled

Note:  should be used rather than PUSHF because that instruction yields the
     physical interrupt state rather than the per-client virtualized
     interrupt flag

See Also: AX=0900h,AX=0901h