189     int samples, to_play, written;  in adlib_callback()  local
198         written = write_audio (s, to_play);  in adlib_callback()
200         if (written) {  in adlib_callback()
201             s->left -= written;  in adlib_callback()
202             samples -= written;  in adlib_callback()
203             to_play -= written;  in adlib_callback()
204             s->pos = (s->pos + written) % s->samples;  in adlib_callback()
219         written = write_audio (s, samples);  in adlib_callback()
221         if (written) {  in adlib_callback()
222             samples -= written;  in adlib_callback()
223             s->pos = (s->pos + written) % s->samples;  in adlib_callback()