Is there any way of showing the assembler code generated from compiling a sketch. A list of assembler commands against each C++ line would be really nice :). I know some compilers do this but is there any way to make the Arduino compiler do it? I would like to work out where the memory is going and get an idea for what's efficient and what's not.
Thanks,
Julian
There is a utility called avr-objdump.exe in the hardware\tools\avr\bin
directory that will dump a listing of the compiled output (an elf file) showing the C source intermixed with the assembler code. You can also view a map of the memory allocation.
The following will dump the output of a compiled sketch called mySketch.pde:
avr-objdump –S mySketch.elf
the elf file is in the applet subdirectory below the location of the sketch source code
That's fantastic. Just what I was looking for.
Thanks,
Julian