I worked out that I need to reset SB82.
Now I have an issue. I am running very low on program space and need to add the 9 consective 16 bit numbers to 9 consecutive 32 numbers. I haven't worked out a recursive way of doing it without gobbling up most of the last 100 instructions I have left to play with. Everthing I have thought of so far uses pretty well all of that 100 and I need some of that 100 for other stuff.
For example I need to add MI0 to MI20(MI21), MI1 to MI22(23), MI2 to MI24(25) etc