> Scanning Microchip's datasheets for the gray box in the Interrupts > section of the datasheet that details this problem, here's the chips > that they say are affected > > 14000 > 16C61 > 16C62 > 16C63A > 16C64 > 16C65 > 16C65B > 16C71 > 16C73 > 16C73B > 16C74 > 16C74B > 17C42 I have updated the include files STD_DEF.INS.ASPIC and STD.INS.ASPIC at http://www.embedinc.com/pic so that the INTR_OFF macro emits the extra required code to work around the interrupt bug for these processors. ******************************************************************** Olin Lathrop, embedded systems consultant in Littleton Massachusetts (978) 742-9014, olin@embedinc.com, http://www.embedinc.com -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics