Hi Wang, Wang Haichen wrote: > HI, I am a newcomer. > > I would like to trace bytecode in kaffe. I assume you'd like to trace bytecode execution. Here's the simplest way to do it (should work on any platform): 1: configure/make/install kaffe with the interpreter engine (./configure --with-engine=intrp) 2: run programs with kaffe -vmdebug INT_INSTR cheers, dalibor topic