Methods for Reducing Space

• Make sure you aren't using two functions to do the same thing
• Check that development tools aren't sabotaging you but pulling in large libraries or other garbage.
• Configure the RTOS to contain only those functions that you need.
• Look at the assembly language to verify the compiler is producing optimized code
• Consider using static variables instead of locals.
• Consider using char instead of int
• Write it in assembly (ugh)