Matthew Plant <rookie.mp@xxxxxxxxx> writes: > So my final question is this: what determines the addresses of labels? > Can this problem be fixed with at least semi-readable code? Speaking very roughly, gcc separates the code into basic blocks and builds a control flow graph. The blocks in the control flow graph are sorted based on the predicted results of branches. The blocks are then output in the order. Nothing like what you want to do is possible with gcc. You are assuming that there is a natural correspondence between your source code and gcc's internal representation; that is a natural thing assumption, but in actual fact no such correspondence exists. Ian
