SYNOPSIS

#include <genlib.h>

void GENLIB_MACRO (DPGEN_NUL, char *modelname, long flags, long N);

DESCRIPTION

Generate a N bits zero detector named modelname.

TERMINAL NAMES

1.

i0 : value to check (input, N bits).

2.

q : null flag (output, 1 bit).

3.

vdd : power.

4.

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
            );