I have been testing a code with global and local variables as usual. In particular this featured a variable
u16 pippo[16];
and this mapped to memory this way

...
DATA 000000H 000004H PAGE0 CSTDLIB_REGISTERS
DATA 000004H 00006DH PAGE0 ?ZD0?PFC_DATA
DATA 000071H 00004CH PAGE0 ?ZD0?ADC
...

While trying to improve my application, I happened to change the definition of pippo to
u16 pippo[32];
this caused a different result on the application despite I didn't change anything else but the definition of this variable.
So I checked the memory mapping and I saw the mapping of the PFC_DATA and ADC was in inverse order

...
DATA 000000H 000004H PAGE0 CSTDLIB_REGISTERS
DATA 000004H 00006DH PAGE0 ?ZD0?ADC
DATA 000071H 00004CH PAGE0 ?ZD0?PFC_DATA
...

Investigating about the issue I found this inversion (and consequently the different behaviour of the code) to happen with Pippo's length>31. Now I suspect this myght happen because the compiler is not able to properly resolve some addresses it translates to absolute, but I can't understand why.

Anyone has had the same issue? Looking forward to suggestions about how to solve it.