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Internal error in expression_maybe_register

Received this error on compile after update:
Core 4.3.4

Assembler messages:
Internal error in expression_maybe_register at /builds/idf/crosstool-NG/.build/HOST-i686-w64-mingw32/xtensa-esp32-elf/src/binutils/gas/config/tc-xtensa.c:1939.
Please report this bug.

problem within this code. Compile works after comment it out. But took some time to find it :slight_smile:

void (rvect)(void) = (void ()(void))0x80000000;
rvect();

this was old code left from an AT32* Project but at least it compiled before.

Is jumping to the reset vector also broken in the Arduino IDE in the newest version?