By default, GCC deletes the assembly files after the assembler is run. There is an option (-save-temps) that tells the compiler to not delete the intermediate files, but I suspect the IDE does not give you access to that switch. If you are familiar using the command line on your system, you could use the verbose option in the IDE to locate where the compiler is store, and then create a simple .c or .cpp file in the directory and execute the command /gcc -O -S .cpp and the compiler will compile to .s