int32_t TEMPM = TEMP - 2000;
int64_t OFF2 = (61 * (int64_t) TEMPM * (int64_t) TEMPM) >> 4;
int64_t SENS2 = 2 * (int64_t) TEMPM * (int64_t) TEMPM;
- if (TEMP < 1500) {
+ if (TEMP < -1500) {
int32_t TEMPP = TEMP + 1500;
- int64_t TEMPP2 = TEMPP * TEMPP;
- OFF2 = OFF2 + 15 * TEMPP2;
- SENS2 = SENS2 + 8 * TEMPP2;
+ /* You'd think this would need a 64-bit int, but
+ * that would imply a temperature below -327.67°C...
+ */
+ int32_t TEMPP2 = TEMPP * TEMPP;
+ OFF2 = OFF2 + (int64_t) 15 * TEMPP2;
+ SENS2 = SENS2 + (int64_t) 8 * TEMPP2;
}
TEMP -= T2;
OFF -= OFF2;