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Hi,
The chip uses Renesas RX231 and the compiler uses 4.8.4.201803-GNURX.

I would like to refer to the specification of ABI (Application Binary Interface).
Is it possible to download the document?

There is an SH reference on the link, but what I want to know is the RX specification.
https://gcc-renesas.com/en/useful-links/#more-199

Regards
Takayuki

Takayuki Kobayashi edited question