1 files changed, 76 insertions, 0 deletions

diff --git a/ecp5/arch.h b/ecp5/arch.h
index 06cf6488..50897b86 100644
--- a/ecp5/arch.h
+++ b/ecp5/arch.h
@@ -386,6 +386,24 @@ public:
 
     uint32_t getBelChecksum(BelId bel) const { return bel.index; }
 
+    void bindBel(BelId bel, IdString cell, PlaceStrength strength)
+    {
+        NPNR_ASSERT(bel != BelId());
+        NPNR_ASSERT(bel_to_cell[bel] == IdString());
+        bel_to_cell[bel] = cell;
+        cells[cell]->bel = bel;
+        cells[cell]->belStrength = strength;
+    }
+
+    void unbindBel(BelId bel)
+    {
+        NPNR_ASSERT(bel != BelId());
+        NPNR_ASSERT(bel_to_cell[bel] != IdString());
+        cells[bel_to_cell[bel]]->bel = BelId();
+        cells[bel_to_cell[bel]]->belStrength = STRENGTH_NONE;
+        bel_to_cell[bel] = IdString();
+    }
+
     BelRange getBels() const
     {
         BelRange range;
@@ -460,6 +478,33 @@ public:
 
     uint32_t getWireChecksum(WireId wire) const { return wire.index; }
 
+    void bindWire(WireId wire, IdString net, PlaceStrength strength)
+    {
+        NPNR_ASSERT(wire != WireId());
+        NPNR_ASSERT(wire_to_net[wire] == IdString());
+        wire_to_net[wire] = net;
+        nets[net]->wires[wire].pip = PipId();
+        nets[net]->wires[wire].strength = strength;
+    }
+
+    void unbindWire(WireId wire)
+    {
+        NPNR_ASSERT(wire != WireId());
+        NPNR_ASSERT(wire_to_net[wire] != IdString());
+
+        auto &net_wires = 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();
+    }
+
     WireRange getWires() const
     {
         WireRange range;
@@ -479,6 +524,37 @@ public:
 
     uint32_t getPipChecksum(PipId pip) const { return pip.index; }
 
+    void 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 = locInfo(pip)->pip_data[pip.index].dst_idx;
+        dst.location = pip.location + locInfo(pip)->pip_data[pip.index].rel_dst_loc;
+        NPNR_ASSERT(wire_to_net[dst] == IdString());
+        wire_to_net[dst] = net;
+        nets[net]->wires[dst].pip = pip;
+        nets[net]->wires[dst].strength = strength;
+    }
+
+    void unbindPip(PipId pip)
+    {
+        NPNR_ASSERT(pip != PipId());
+        NPNR_ASSERT(pip_to_net[pip] != IdString());
+
+        WireId dst;
+        dst.index = locInfo(pip)->pip_data[pip.index].dst_idx;
+        dst.location = pip.location + locInfo(pip)->pip_data[pip.index].rel_dst_loc;
+        NPNR_ASSERT(wire_to_net[dst] != IdString());
+        wire_to_net[dst] = IdString();
+        nets[pip_to_net[pip]]->wires.erase(dst);
+
+        pip_to_net[pip] = IdString();
+    }
+
     AllPipRange getPips() const
     {
         AllPipRange range;