Cosmic: The comparison uses the STM8 Special Edition 4.5.4.For all of them we used the current version as of March 2022: There are currently multiple C implementations targeting the STM8.
There is also a similar comparison from 2020, and a summary of the changes from mid-2016 to early 2022. The author is a SDCC user and developer, but tried to do an objective comparison here. This is a comparison of currently (early 2022) available C implementations targeting the STM8.
