BRMB    [   
 BS72    [   
 BSLL    [ HERE FOLLOW THE SUBSIDIARY MACROS 
 BT6=    [ ================================= 
 BTKW    [   
 BW5G    [   
 BWK6    [ DIRECTION INVERSION MACROS, E.G.  
 BX4Q    [    IF 0,NZ
 BXJB    [         ==
 BY42    [      -> GOIFALSE   NIF2,NIF1,0,NZ 
 BYHL    [      -> IFNNZ      NIF2,0 
 B^3=    [      -> BRANCHIF   NIF2,ZE,0  
 B^GW    [      -> NESTBRANCH ZE 0,NIF2  
 C22G    [      -> BZE   0    NNNNIF2
 C2G6    [          ==   
 C2^Q    [   
 C3FB    [   
 C3^2    [??? IFNFALSE SECT DEVT FGN 1 DOC   
 C4DL    [   
 C4Y=    #MAC           IFNFALSE 
 C5CW    [              ======== 
 C5XG          BRANCHIF %A,TRUE  
 C6C6    #NOR