Special registers in XTENSA assembler with ESP32forth

[Marc Petremann]

Hello,
The special registers supplement the instructions of the XTENSA assembler. Knowledge of certain registers is essential to fully master the instruction set, in particular the special registers BR and SAR.
https://esp32.arduino-forth.com/article/XTENSA_specialRegisters

[Marc Petremann]

Discover XTENSA extensions for L32R
https://github.com/MPETREMANN11/ESP32forth/blob/main/assembler/xtensaExtensions.txt