Jan Kromhout - 2023-05-02

I'm working on adding the BME280 sensor ( Bosch) to the forth envoirment.
In the datascheet of this sensor a part of the calculation is in 64 bit integer math.

Does anyone have experience with 64 bit math.
Need the basic rules:
add,subtract,multply,divide,rshift and lshift and
store,fetch,create constants and variable

My envoirment is the Scamp3

Cheers,
Jan