53 #define  PD_FILTER( x0, x1, x2, x3, x4 ) ((x2)*6+((x1)+(x3))*4+(x0)+(x4))  argument
62 #define  PD_LT(x0,x1,x2)                 ((x0)*6 + (x1)*8 + (x2)*2)  argument
67 #define  PD_RB(x0,x1,x2,x3)              ((x0) + ((x1) + (x3))*4 + (x2)*7)  argument
72 #define  PD_SINGULAR(x0,x1)    (((x0) + (x1))*8)  argument
234 #define  PU_FILTER( x0, x1, x2 )         ((x1)*6 + (x0) + (x2))  argument
239 #define  PU_FILTER_ZI( x0, x1 )          (((x0) + (x1))*4)  argument
248 #define  PU_LT( x0, x1 )                 ((x0)*6 + (x1)*2)  argument
252 #define  PU_LT_ZI( x0, x1 )              PU_FILTER_ZI((x0),(x1))  argument
257 #define  PU_RB( x0, x1 )                 ((x0) + (x1)*7)  argument
262 #define  PU_RB_ZI( x0 )                  ((x0)*8)  argument
267 #define  PU_SINGULAR( x0 )               PU_RB_ZI((x0)) /* <--| the same formulas */  argument
268 #define  PU_SINGULAR_ZI( x0 )            PU_RB_ZI((x0)) /* <--| */  argument