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Add new $check cell to represent assertions with a message.

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Catherine 2024-01-11 09:39:28 +00:00 • committed by Jannis Harder
parent e1a59ba80b
commit c7bf0e3b8f
12 changed files with 516 additions and 306 deletions
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22
kernel/rtlil.cc
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@ -1068,6 +1068,12 @@ namespace {
error(__LINE__);
}
std::string param_string(const RTLIL::IdString &name)
{
param(name);
return cell->parameters.at(name).decode_string();
}
void port(const RTLIL::IdString& name, int width)
{
auto it = cell->connections_.find(name);
@ -1747,6 +1753,22 @@ namespace {
return;
}
if (cell->type == ID($check)) {
std::string flavor = param_string(ID(FLAVOR));
if (!(flavor == "assert" || flavor == "assume" || flavor == "live" || flavor == "fair" || flavor == "cover"))
error(__LINE__);
param(ID(FORMAT));
param_bool(ID::TRG_ENABLE);
param(ID::TRG_POLARITY);
param(ID::PRIORITY);
port(ID::A, 1);
port(ID::EN, 1);
port(ID::TRG, param(ID::TRG_WIDTH));
port(ID::ARGS, param(ID::ARGS_WIDTH));
check_expected();
return;
}
if (cell->type == ID($_BUF_)) { port(ID::A,1); port(ID::Y,1); check_expected(); return; }
if (cell->type == ID($_NOT_)) { port(ID::A,1); port(ID::Y,1); check_expected(); return; }
if (cell->type == ID($_AND_)) { port(ID::A,1); port(ID::B,1); port(ID::Y,1); check_expected(); return; }