diff options
Diffstat (limited to 'icetime')
| -rw-r--r-- | icetime/icetime.cc | 40 |
1 files changed, 35 insertions, 5 deletions
diff --git a/icetime/icetime.cc b/icetime/icetime.cc index 378fef0..4dfdf65 100644 --- a/icetime/icetime.cc +++ b/icetime/icetime.cc @@ -1382,15 +1382,37 @@ int main(int argc, char **argv) } } - if (cascade_cbit_4 && cascade_cbit_6) + if (cascade_cbit_4) { std::string src_cell = stringf("ram_%d_%d", x, y+2); std::string dst_cell = stringf("ram_%d_%d", x, y); - for (int rw = 0; rw < 2; rw++) for (int i = 0; i < 11; i++) { - std::string port = stringf("%cADDR[%d]", rw ? 'R' : 'W', i); + std::string port = stringf("WADDR[%d]", i); + + if (netlist_cells[src_cell][port] == "") + continue; + + std::string srcnet = netlist_cells[src_cell][port]; + std::string tmpnet = tname(); + extra_wires.insert(tmpnet); + + extra_vlog.push_back(stringf(" CascadeBuf %s (.I(%s), .O(%s));\n", + tname().c_str(), srcnet.c_str(), tmpnet.c_str())); + + netlist_cells[dst_cell][port] = cascademuxed(tmpnet); + } + } + + if (cascade_cbit_6) + { + std::string src_cell = stringf("ram_%d_%d", x, y+2); + std::string dst_cell = stringf("ram_%d_%d", x, y); + + for (int i = 0; i < 11; i++) + { + std::string port = stringf("RADDR[%d]", i); if (netlist_cells[src_cell][port] == "") continue; @@ -1430,6 +1452,16 @@ int main(int argc, char **argv) fclose(graph_f); } + for (auto it : netlist_cell_types) + for (auto &port : netlist_cells[it.first]) + if (port.second == "") { + size_t open_bracket_pos = port.first.find('['); + if (open_bracket_pos == std::string::npos) + continue; + port.second = stringf("dangling_wire_%d", dangling_cnt++); + extra_wires.insert(port.second); + } + fprintf(fout, "module chip ("); const char *io_sep = ""; for (auto io : io_names) { @@ -1492,8 +1524,6 @@ int main(int argc, char **argv) const char *sepsep = ""; for (int i = int(it.second.size())-1; i >= 0; i--) { std::string wire_name = it.second[i]; - if (wire_name == "") - wire_name = stringf("dangling_wire_%d", dangling_cnt++); fprintf(fout, "%s%s", sepsep, wire_name.c_str()); sepsep = ", "; } |