Small-C is both a subset of the C programming language, suitable for resource-limited microcomputers and embedded systems, Cross Small-C implementation based microcomputers

 https://en.wikipedia.org/wiki/Small-C

https://godbolt.org/

 

https://forum.community.tw/t/topic/65

 https://www.renesas.com/us/en/software-tool/cc-compiler-package-superh-family#additional_details
"C/C++ Compiler Package for SuperH Family Software Component List (PDF | English, 日本語)".

 

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