gistfile1.txt

// I don’t care if

IOPIN0 & (1<<23);

// means anything to you. it doesn’t mean anything to me.
// So let’s move it to a method, which, when called, will
// make everything clear for everybody.

int isUSBConnected(void) {
  return IOPIN0 & (1<<23);
}

// Label your functionality semantically!