/*
* If needed, draw a .delay node to delay the output from the LPM
* device. Return the "/d" string if we drew this .delay node, or the
* "" string if the node was not needed. The caller uses that string
* to modify labels that are generated.
*/
static const char* draw_lpm_output_delay(ivl_lpm_t net)
{
ivl_expr_t d_rise = ivl_lpm_delay(net, 0);
ivl_expr_t d_fall = ivl_lpm_delay(net, 1);
ivl_expr_t d_decay = ivl_lpm_delay(net, 2);
const char*dly = "";
if (d_rise != 0) {
assert(number_is_immediate(d_rise, 64, 0));
assert(number_is_immediate(d_fall, 64, 0));
assert(number_is_immediate(d_decay, 64, 0));
dly = "/d";
fprintf(vvp_out, "L_%p .delay (%lu,%lu,%lu) L_%p/d;\n",
net, get_number_immediate(d_rise),
get_number_immediate(d_rise),
get_number_immediate(d_rise), net);
}
return dly;
}
static void show_lpm_delays(ivl_lpm_t net)
{
ivl_expr_t rise = ivl_lpm_delay(net, 0);
ivl_expr_t fall = ivl_lpm_delay(net, 1);
ivl_expr_t decay= ivl_lpm_delay(net, 2);
if (rise==0 && fall==0 && decay==0)
return;
fprintf(out, " #DELAYS\n");
if (rise)
show_expression(rise, 8);
else
fprintf(out, " ERROR: missing rise delay\n");
if (fall)
show_expression(fall, 8);
else
fprintf(out, " ERROR: missing fall delay\n");
if (decay)
show_expression(decay, 8);
else
fprintf(out, " ERROR: missing decay delay\n");
fprintf(out, " #END DELAYS\n");
}
