745G ...[??? SCBB SECT CENT FGN 3 DOC   
 CRWL    #   
 CSB=    #   
 CT*G    #   
 CTT6    #     THIS MACRO SETS THE CHANNEL BUSY BIT IN THE APPROPRIATE OLPA  
 CW#Q    #   
 CWSB    #MAC  SCBB  
 CX#2    #SKI  IPCV2 
 CXRL    (   
 CY?=          LDBIT    2,0  
 CYQW    #STR  %A
 C^=G          MOD      ORS   0  BFSTATE,%A  
 C^Q6    #STR  %A
 D29Q    #SKI
 D2PB    (   
 D392          SMO      FX2  
 D3NL          ORS   0  BFSTATE  
 D48=    )   
 D4MW    )   
 D57G    #NOR