RX Features (Debugging with GDB)

From Get docs
Gdb/docs/latest/gdb/RX-Features


G.5.13 RX Features

The ‘org.gnu.gdb.rx.core’ feature is required for RX targets. It should contain the registers ‘r0’ through ‘r15’, ‘usp’, ‘isp’, ‘psw’, ‘pc’, ‘intb’, ‘bpsw’, ‘bpc’, ‘fintv’, ‘fpsw’, and ‘acc’.