Documentation about the inline assembler

[Roberthh]

Hello all. Has anyone of you seen a documentation about using the Xtensa inline assembler with the decorator @micropython.asm_xtensa?
The only information I kept are a few words puiblished a while ago about the ESP8266 implementation: https://github.com/micropython/micropyt ... d2db3ff4a3 But that does not fully match the ESP32 situation. Adn even there things might have changed.

[pythoncoder]

You might have to write it, as I did for the Arm Thumb assembler. Welcome to the world of Python source and processor manuals

[pythoncoder]

Hi Robert, did you ever find anything useful on this?

[Roberthh]

Actually I did not look into that further. The last time I tried, inline assembler on ESP32 did not work at all.

[pythoncoder]

Perhaps I'll try to write a native module instead. Although documentation on that is rather thin on the ground. Whatever happened to the season of docs?
[EDIT]
Writing a native module was easier than I expected. It's 4.4x faster than Viper on a Pyboard 1.1. Now to tangle with the ESP32 toolchain to recompile the thing, something I've resisted so far...