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
);
|