PC_SIGNAL
queue_event(smc,EVENT_PCM+np,PC_SIGNAL) ;
case PL_PC3 : pcs = PC_SIGNAL ; break ;
case PL_PC4 : pcs = PC_SIGNAL ; break ;
case PL_PC5 : pcs = PC_SIGNAL ; break ;
if ((cmd != PC_SIGNAL) && (cmd != PC_TIMEOUT_LCT))