esp32-c6 riscv instructions set

[watchdog40]

Hello.
Where can I find the list of RISC-V assembly instructions supported by the ESP32-C6?
The Zba extension and the `sh2add` instruction are accepted by the compiler, but the `sh2add` instruction fails at runtime (unless I am mistaken).
Thanck.

[MicroController]

The TRM says

RISC-V instruction set architecture (ISA) comprising base integer (I), multiplication/division (M), atomic (A) and compressed (C) standard extensions

[...]

RISC-V RV32IMAC ISA

[watchdog40]

Thanks.