<But when AMD is profitable they start have to start counting "diluted shares" differently>
When you are showing a loss, reported diluted shares are equal to shares outstanding. No potential shares from convertible bonds or other types of equity/debt financing are counted at all. The diluted shares would make your loss seem smaller, so you aren't allowed to count them.
The last quarter still had a loss. That is why the "basic" shares and the "diluted" shares are identical at 347.334M.
I really don't know how many shares are represented by all the convertible bonds outstanding. My guess of 50M so exactly that, a guess. ISO options may come into play also, not sure of the rules on them.
Petz