Rob Santello writes:

>>I noticed this to with the latest version of MPLAB (3.12.14).  According to
>>MPLAB, the 16C84 only seems to have 512 Instructions.

>Exactly what I'm seeing here, thanks for the confirmation, I was going
>nuts trying to figure out what I was doing wrong.  Wasted hours!  I even
>thought there might be a problem with MPLab so I checked their web site
>and found a new release 3.22.00.  This did not fix the problem.  I even
>tried to compile and run as a 16F84, same error.

>So, Microchip ... what's up?

     The latest version of MPLAB-SIM for the 16C84 is really for the 16C83,
     hence it has only 512 words of program memory.  We are going to post
     an update.  In the meantime, we suggest selecting the 16F84.  This can
     be used to simulate the 16C84 until the fix is available.  If you are
     programming 16C84 devices with the PRO MATE or PICSTART Plus, switch
     to "Editor Only" mode and then use the 16C84 as selected on the
     programmer dialog.  Switch back to the 'F84 to simulate.

     We posted this info yesterday, but I'm not sure that it got through to
     the PICLIST.

     Darrel Johansen