DPGEN_NUL
Name
 DPGEN_NUL  --  Zero Detector Macro-Generator 
Synopsis
void GENLIB_MACRO(DPGEN_NUL, char *modelname, long flags, long N);
 Description 
 Generate a N bits zero detector named modelname.
    
 Terminal Names 
-  i0 : value to check (input, N bits).  
-  q : null flag (output, 1 bit).  
-  vdd : power.  
-  vss : ground.  
 Behavior 
q <= <= '1' WHEN (i0 = X"00000000") ELSE '0';
      
 Example 
    
| GENLIB_MACRO(DPGEN_NUL, "model_nul_32"
                      , F_BEHAV|F_PLACE
                      , 32
                      );
GENLIB_LOINS( "model_nul_32"
            , "instance1_nul_32"
            , "i0[31:0]"
            , "q"  /* Flag null. */
            , "vdd", "vss", NULL
            );
     |