Code Optimization

MIOS programming (C)
1

I’ve been watching my code block size increase steadily as I work on my project and I’m now aware first hand of how assembler can be much more efficient than what a compiler can do.

I wanted to share a method I use to determine if my C optimizations are reducing the code size.

If you look inside the project.map file, at the top of the file look for the name of the function you’re working on like this:

S_main__Update_LFO_LED_Status      code  0x006304    program  0x0000fa

On the end is the size of the function in bytes: 0x0000fa = 250 bytes

This number will change when you make changes to this function.

2

compiled_c_code_size :slight_smile:

3

Hi Jackchaos,

thank you for the tip, it could come handy sometime  :slight_smile:

I always looked at the bottom of the .asm file of the module I was changing,

but this only gives you a general code size (of the source file)

Michaël

4

hehe nice one stryd  :slight_smile: