How to handle overflows of int16

I get a vector of int16 from a VISA-instrument where the values have rolled over if to big, the vector has an offset that I want to subtract but then the values just becomes floored at - 32768.

The question comes down to how can I make int16(-2^15-1) = 32767 ?

Answer 1

[Micke Malmström]

Ok this it what I do: >> mod(-2^15-1+(+2^15),2^16)+(-2^15) ans = 32.7670e+003