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Add verific import support for OPER_WIDE_CASE_SELECT_BOX

This commit is contained in:
Miodrag Milanovic 2023-02-06 09:28:23 +01:00
parent 221036c5b6
commit e7e37df91b
1 changed files with 41 additions and 0 deletions
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41
frontends/verific/verific.cc
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@ -989,6 +989,47 @@ bool VerificImporter::import_netlist_instance_cells(Instance *inst, RTLIL::IdStr
return true;
}
if (inst->Type() == OPER_WIDE_CASE_SELECT_BOX)
{
RTLIL::SigSpec sig_out_val = operatorInport(inst, "out_value");
RTLIL::SigSpec sig_select = operatorInport(inst, "select");
RTLIL::SigSpec sig_select_values = operatorInport(inst, "select_values");
RTLIL::SigSpec sig_data_values = operatorInport(inst, "data_values");
RTLIL::SigSpec sig_data_default = operatorInport(inst, "default_value");
RTLIL::Process *proc = module->addProcess(new_verific_id(inst));
import_attributes(proc->attributes, inst);
RTLIL::CaseRule *current_case = &proc->root_case;
current_case = &proc->root_case;
RTLIL::SwitchRule *sw = new RTLIL::SwitchRule;
sw->signal = sig_select;
current_case->switches.push_back(sw);
int select_width = inst->InputSize();
int data_width = inst->OutputSize();
int select_num = inst->Input1Size() / inst->InputSize();
int offset_select = 0;
int offset_data = 0;
for (int i = 0; i < select_num; i++) {
RTLIL::CaseRule *cs = new RTLIL::CaseRule;
cs->compare.push_back(sig_select_values.extract(offset_select, select_width));
cs->actions.push_back(SigSig(sig_out_val, sig_data_values.extract(offset_data, data_width)));
sw->cases.push_back(cs);
offset_select += select_width;
offset_data += data_width;
}
RTLIL::CaseRule *cs_default = new RTLIL::CaseRule;
cs_default->actions.push_back(SigSig(sig_out_val, sig_data_default));
sw->cases.push_back(cs_default);
return true;
}
#undef IN
#undef IN1
#undef IN2