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preserve constraints

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This commit is contained in:
Miodrag Milanovic 2019-06-02 16:46:07 +02:00
parent d0273f7faa
commit 1894cb549c
1 changed files with 26 additions and 2 deletions
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28
json/jsonwrite.cc
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@ -81,6 +81,30 @@ void write_routing(std::ostream &f, Context *ctx, NetInfo *net, bool first)
f << get_string(routing);
}
void write_constraints(std::ostream &f, Context *ctx, CellInfo *cell, bool first)
{
std::string constr;
constr += std::to_string(cell->constr_x) + ";";
constr += std::to_string(cell->constr_y) + ";";
constr += std::to_string(cell->constr_z) + ";";
constr += std::to_string(cell->constr_abs_z ? 1:0) + ";";
constr += cell->constr_parent!=nullptr ? cell->constr_parent->name.c_str(ctx) : "";
f << stringf("%s\n", first ? "" : ",");
f << stringf(" \"NEXTPNR_CONSTRAINT\": ");
f << get_string(constr);
constr = "";
for(auto &item : cell->constr_children)
{
if (!constr.empty()) constr += std::string(";");
constr += item->name.c_str(ctx);
}
f << stringf(",\n");
f << stringf(" \"NEXTPNR_CONSTR_CHILDREN\": ");
f << get_string(constr);
}
void write_module(std::ostream &f, Context *ctx)
{
f << stringf(" %s: {\n", get_string("top").c_str());
@ -109,7 +133,8 @@ void write_module(std::ostream &f, Context *ctx)
write_parameters(f, ctx, c->params);
f << stringf("\n },\n");
f << stringf(" \"attributes\": {");
write_parameters(f, ctx, c->attrs);
bool first3 = write_parameters(f, ctx, c->attrs);
write_constraints(f, ctx, c.get(), first3);
f << stringf("\n },\n");
f << stringf(" \"port_directions\": {");
bool first2 = true;
@ -123,7 +148,6 @@ void write_module(std::ostream &f, Context *ctx)
f << stringf("\n },\n");
f << stringf(" \"connections\": {");
first2 = true;
for (auto &conn : c->ports) {
auto &p = conn.second;
f << stringf("%s\n", first2 ? "" : ",");