Hi,

Would somebody help a newbie please ?

I'm  experimenting with the 16C84 by using  the simulator built into
MPLAB version 3.09.02.
I want to experiment with the PCL and PCLATH registers and program
memory paging, so I ran the following (simplified) code expecting it to
fail:

        goto  too_far ; Shouldn't work ?


        org 0x100
too_far ; PCL will contain 0

        nop

When I ran the simulation I was surprised to see the "goto" jump to the
memory address  0x100 even though PCLATH contained zero :( I had
expected it to end up at address 0x0 ! In the register display PCL
contained 0 !!

What am I doing wrong  ? Have I misunderstood something about the 84's
architecture or simulator ?

Any help gratefully received,


Many thanks,



--
Andy