c
c event trigger common
c
c the following useful trigger logical words are extracted
c or constructed from the pattern units (see hec_evth.inc and
c hec_trig.f)
c ML  99/08/26  improved with DAQ trigger words and
c               tdc wrap around flags
c 
c triggers constructed from pattern unit bits
c trig_e
c trig_epi
c trig_halo
c trig_mu
c trig_mucounters
c trig_pi
c trig_physics
c trig_pretrigger
c
c actual triggers used in DAQ
c trig_daq_e       this is "pi/e*c" (prescaled)
c trig_daq_epi     this is "pi/e"   (prescaled)
c trig_daq_mu      this is "mu"     (prescaled)
c trig_random      this is "calib"
c trig_random_hard this is "rand"   (prescaled)
c
c status
c trig_bad         flags normally impossible trigger combinations
c
c flags for tdc wrap around constants
c in principle, one should use a different tdc wrap around constant
c depending on which one of the following flags is set (at most only one
c of these flags is set in one event)
c trig_wac_c
c trig_wac_epi
c trig_wac_mu
c 
      logical trig_e           
      logical trig_epi         
      logical trig_halo        
      logical trig_mu          
      logical trig_mucounters  
      logical trig_pi          
      logical trig_physics     
      logical trig_pretrigger
      logical trig_daq_e
      logical trig_daq_epi
      logical trig_daq_mu
      logical trig_random    
      logical trig_random_hard
      logical trig_bad
      logical trig_wac_c
      logical trig_wac_epi
      logical trig_wac_mu
c
      common /ssstrg/ trig_e,           
     +                trig_epi,         
     +                trig_halo,        
     +                trig_mu,          
     +                trig_mucounters,  
     +                trig_pi,          
     +                trig_physics,     
     +                trig_pretrigger,
     +                trig_daq_e,     
     +                trig_daq_epi,
     +                trig_daq_mu,
     +                trig_random,
     +                trig_random_hard,
     +                trig_bad,
     +                trig_wac_c,      
     +                trig_wac_epi,      
     +                trig_wac_mu      
c