extern struct output_format output_vcd;
extern struct output_format output_gnuplot;
struct output_format *output_module_list[] = {
&output_text_binary,
&output_text_hex,
extern struct output_format output_vcd;
extern struct output_format output_gnuplot;
struct output_format *output_module_list[] = {
&output_text_binary,
&output_text_hex,