I have a problem very strange, i sure that it's my fault. I wrote a little synth very simple, it stores the song on a char string, the main problem is that i wrote a function to do this called fill_buffer declarared static, if i put modulus, shift bytes or strlib function calls, it hangs directly using -nostartfiles, but works properly without that option. This function it's called inside entry/main function, and inside display function registered as idle function on TinyGL, i tried also to create a macro with the same function and it works with -nostartfiles, but the executable gives some bytes more, so it appears that it doesn't work when i used that operations outside entry or display function. This is part of the code:

Code:

quote from tokai: "the order of the functions matter. you must make sure your main entry routine is first."

Thanks Sadddam, entry function is the first, the code above is only a part of the code, and fill_buffer function is implemented after entry function. An example of how is structured:

int entry(void) { return 0; }

static void display{void}

static void fill_buffer(BYTE *p)

Anyway i received an email from my webpage from tokai, and suggest me some tips that i will try this night.

Quote:

Be aware that -O3 will reorder functions, therefore you must either use -O2 or put the entry function in a separate file and make sure it is linked first.


- CISC

Thanks CISC for your help, i will check again this night, i was using -Os, i had solved the problem yesterday using gotos, that save some bytes more than using a macro, but i don't like this way, i prefer to use functions.

I changed optimization level to -O2 and now it works, i will publish some code when I will have it more advanced, if it's usefull to someone.