Too long program ?

Hello,
I’m new on Arduino. I have an Arduino UNO. Just after the Blink test, I was working on making music with my floppy disc.

Just to test the program, I wrote a long list of function call that are used to play a given tone for a given time.

  8 #define _DIR    12
 18 #define INV_DIR     dir = (dir == HIGH ? LOW : HIGH); digitalWrite(_DIR, dir
...

 81 void play(unsigned int duration, int step_delay) {
 82     int time = millis();
 83 
 84     while (millis() - time < duration) {
 85         step(step_delay);
 86         INV_DIR;
 87     }   
 88 }
 89 
 90 void step(int step_delay) {
 91     delayMicroseconds(step_delay);
 92     digitalWrite(MOTEB, LOW);
 93     delayMicroseconds(step_delay);
 94     digitalWrite(MOTEB, HIGH);
 95 }
...

194         play(t/2, SI*2);
195         play(t*2.5, FA);
196         play(t*0.75, LA*2);
197         play(t*0.25, SI*2);
198 
199         play(t, DO);
200         play(t, RE);
201         play(t, MI);
202         play(t*0.75, MI*2);
203         play(t*0.25, FA*2);
204 
205         play(t/2, SO*2);
206         play(t*2.5, DO);
207         play(t*0.75, RE);
208         play(t*0.25, MI);
209 
210         play(t*3, FA);
211         play(t*0.75, SO*2);
212         play(t*0.25, SO*2);
... And so one

I have no compilation probleme nor upload problems. But when I start the program, it work well but stops after a constant certain number of notes.

I first thought it was a problem within my code, but whatever i could write, the program will stop after the same number of play(…) function call.

It can’t be an out of memory issue since I don’t use more and more memory while playing.

I really do not know what is appening here. Could you help me ?

By the way: I am not slaughtering english language on purpose. I’m not english.

Thanks

It could be you're running out of RAM, but without seeing all the code, it is difficult to say for sure.

What hardware is attached to the Arduino, and how is it all powered?