1 files changed, 79 insertions, 0 deletions
diff --git a/ecp5/arch.cc b/ecp5/arch.cc
index 5c5689f0..1938c297 100644
--- a/ecp5/arch.cc
+++ b/ecp5/arch.cc
@@ -402,5 +402,84 @@ IdString ArchReadMethods::getBoundBelCell(BelId bel) const
         return bel_to_cell.at(bel);
 }
 
+void ArchMutateMethods::unbindWire(WireId wire)
+{
+    NPNR_ASSERT(wire != WireId());
+    NPNR_ASSERT(wire_to_net[wire] != IdString());
+
+    auto &net_wires = parent_->nets[wire_to_net[wire]]->wires;
+    auto it = net_wires.find(wire);
+    NPNR_ASSERT(it != net_wires.end());
+
+    auto pip = it->second.pip;
+    if (pip != PipId()) {
+        pip_to_net[pip] = IdString();
+    }
+
+    net_wires.erase(it);
+    wire_to_net[wire] = IdString();
+}
+
+void ArchMutateMethods::unbindPip(PipId pip)
+{
+    NPNR_ASSERT(pip != PipId());
+    NPNR_ASSERT(pip_to_net[pip] != IdString());
+
+    WireId dst;
+    dst.index = parent_->locInfo(pip)->pip_data[pip.index].dst_idx;
+    dst.location = pip.location + parent_->locInfo(pip)->pip_data[pip.index].rel_dst_loc;
+    NPNR_ASSERT(wire_to_net[dst] != IdString());
+    wire_to_net[dst] = IdString();
+    parent_->nets[pip_to_net[pip]]->wires.erase(dst);
+
+    pip_to_net[pip] = IdString();
+}
+
+void ArchMutateMethods::unbindBel(BelId bel)
+{
+    NPNR_ASSERT(bel != BelId());
+    NPNR_ASSERT(bel_to_cell[bel] != IdString());
+    parent_->cells[bel_to_cell[bel]]->bel = BelId();
+    parent_->cells[bel_to_cell[bel]]->belStrength = STRENGTH_NONE;
+    bel_to_cell[bel] = IdString();
+}
+
+void ArchMutateMethods::bindWire(WireId wire, IdString net, PlaceStrength strength)
+{
+    NPNR_ASSERT(wire != WireId());
+    NPNR_ASSERT(wire_to_net[wire] == IdString());
+    wire_to_net[wire] = net;
+    parent_->nets[net]->wires[wire].pip = PipId();
+    parent_->nets[net]->wires[wire].strength = strength;
+}
+
+void ArchMutateMethods::bindPip(PipId pip, IdString net, PlaceStrength strength)
+{
+    NPNR_ASSERT(pip != PipId());
+    NPNR_ASSERT(pip_to_net[pip] == IdString());
+
+    pip_to_net[pip] = net;
+
+    WireId dst;
+    dst.index = parent_->locInfo(pip)->pip_data[pip.index].dst_idx;
+    dst.location = pip.location + parent_->locInfo(pip)->pip_data[pip.index].rel_dst_loc;
+    NPNR_ASSERT(wire_to_net[dst] == IdString());
+    wire_to_net[dst] = net;
+    parent_->nets[net]->wires[dst].pip = pip;
+    parent_->nets[net]->wires[dst].strength = strength;
+}
+
+void ArchMutateMethods::bindBel(BelId bel, IdString cell, PlaceStrength strength)
+{
+    NPNR_ASSERT(bel != BelId());
+    NPNR_ASSERT(bel_to_cell[bel] == IdString());
+    bel_to_cell[bel] = cell;
+    parent_->cells[cell]->bel = bel;
+    parent_->cells[cell]->belStrength = strength;
+}
+
+CellInfo *ArchMutateMethods::getCell(IdString cell) { return parent_->cells.at(cell).get(); }
+
+
 
 NEXTPNR_NAMESPACE_END