1 files changed, 232 insertions, 232 deletions

diff --git a/passes/techmap/simplemap.cc b/passes/techmap/simplemap.cc
index f3da80c66..325a816ee 100644
--- a/passes/techmap/simplemap.cc
+++ b/passes/techmap/simplemap.cc
@@ -28,82 +28,82 @@ YOSYS_NAMESPACE_BEGIN
 
 void simplemap_not(RTLIL::Module *module, RTLIL::Cell *cell)
 {
-	RTLIL::SigSpec sig_a = cell->getPort("\\A");
-	RTLIL::SigSpec sig_y = cell->getPort("\\Y");
+	RTLIL::SigSpec sig_a = cell->getPort(ID(A));
+	RTLIL::SigSpec sig_y = cell->getPort(ID(Y));
 
-	sig_a.extend_u0(GetSize(sig_y), cell->parameters.at("\\A_SIGNED").as_bool());
+	sig_a.extend_u0(GetSize(sig_y), cell->parameters.at(ID(A_SIGNED)).as_bool());
 
 	for (int i = 0; i < GetSize(sig_y); i++) {
-		RTLIL::Cell *gate = module->addCell(NEW_ID, "$_NOT_");
-		gate->add_strpool_attribute("\\src", cell->get_strpool_attribute("\\src"));
-		gate->setPort("\\A", sig_a[i]);
-		gate->setPort("\\Y", sig_y[i]);
+		RTLIL::Cell *gate = module->addCell(NEW_ID, ID($_NOT_));
+		gate->add_strpool_attribute(ID(src), cell->get_strpool_attribute(ID(src)));
+		gate->setPort(ID(A), sig_a[i]);
+		gate->setPort(ID(Y), sig_y[i]);
 	}
 }
 
 void simplemap_pos(RTLIL::Module *module, RTLIL::Cell *cell)
 {
-	RTLIL::SigSpec sig_a = cell->getPort("\\A");
-	RTLIL::SigSpec sig_y = cell->getPort("\\Y");
+	RTLIL::SigSpec sig_a = cell->getPort(ID(A));
+	RTLIL::SigSpec sig_y = cell->getPort(ID(Y));
 
-	sig_a.extend_u0(GetSize(sig_y), cell->parameters.at("\\A_SIGNED").as_bool());
+	sig_a.extend_u0(GetSize(sig_y), cell->parameters.at(ID(A_SIGNED)).as_bool());
 
 	module->connect(RTLIL::SigSig(sig_y, sig_a));
 }
 
 void simplemap_bitop(RTLIL::Module *module, RTLIL::Cell *cell)
 {
-	RTLIL::SigSpec sig_a = cell->getPort("\\A");
-	RTLIL::SigSpec sig_b = cell->getPort("\\B");
-	RTLIL::SigSpec sig_y = cell->getPort("\\Y");
+	RTLIL::SigSpec sig_a = cell->getPort(ID(A));
+	RTLIL::SigSpec sig_b = cell->getPort(ID(B));
+	RTLIL::SigSpec sig_y = cell->getPort(ID(Y));
 
-	sig_a.extend_u0(GetSize(sig_y), cell->parameters.at("\\A_SIGNED").as_bool());
-	sig_b.extend_u0(GetSize(sig_y), cell->parameters.at("\\B_SIGNED").as_bool());
+	sig_a.extend_u0(GetSize(sig_y), cell->parameters.at(ID(A_SIGNED)).as_bool());
+	sig_b.extend_u0(GetSize(sig_y), cell->parameters.at(ID(B_SIGNED)).as_bool());
 
-	if (cell->type == "$xnor")
+	if (cell->type == ID($xnor))
 	{
 		RTLIL::SigSpec sig_t = module->addWire(NEW_ID, GetSize(sig_y));
 
 		for (int i = 0; i < GetSize(sig_y); i++) {
-			RTLIL::Cell *gate = module->addCell(NEW_ID, "$_NOT_");
-			gate->add_strpool_attribute("\\src", cell->get_strpool_attribute("\\src"));
-			gate->setPort("\\A", sig_t[i]);
-			gate->setPort("\\Y", sig_y[i]);
+			RTLIL::Cell *gate = module->addCell(NEW_ID, ID($_NOT_));
+			gate->add_strpool_attribute(ID(src), cell->get_strpool_attribute(ID(src)));
+			gate->setPort(ID(A), sig_t[i]);
+			gate->setPort(ID(Y), sig_y[i]);
 		}
 
 		sig_y = sig_t;
 	}
 
-	std::string gate_type;
-	if (cell->type == "$and")  gate_type = "$_AND_";
-	if (cell->type == "$or")   gate_type = "$_OR_";
-	if (cell->type == "$xor")  gate_type = "$_XOR_";
-	if (cell->type == "$xnor") gate_type = "$_XOR_";
+	IdString gate_type;
+	if (cell->type == ID($and))  gate_type = ID($_AND_);
+	if (cell->type == ID($or))   gate_type = ID($_OR_);
+	if (cell->type == ID($xor))  gate_type = ID($_XOR_);
+	if (cell->type == ID($xnor)) gate_type = ID($_XOR_);
 	log_assert(!gate_type.empty());
 
 	for (int i = 0; i < GetSize(sig_y); i++) {
 		RTLIL::Cell *gate = module->addCell(NEW_ID, gate_type);
-		gate->add_strpool_attribute("\\src", cell->get_strpool_attribute("\\src"));
-		gate->setPort("\\A", sig_a[i]);
-		gate->setPort("\\B", sig_b[i]);
-		gate->setPort("\\Y", sig_y[i]);
+		gate->add_strpool_attribute(ID(src), cell->get_strpool_attribute(ID(src)));
+		gate->setPort(ID(A), sig_a[i]);
+		gate->setPort(ID(B), sig_b[i]);
+		gate->setPort(ID(Y), sig_y[i]);
 	}
 }
 
 void simplemap_reduce(RTLIL::Module *module, RTLIL::Cell *cell)
 {
-	RTLIL::SigSpec sig_a = cell->getPort("\\A");
-	RTLIL::SigSpec sig_y = cell->getPort("\\Y");
+	RTLIL::SigSpec sig_a = cell->getPort(ID(A));
+	RTLIL::SigSpec sig_y = cell->getPort(ID(Y));
 
 	if (sig_y.size() == 0)
 		return;
 
 	if (sig_a.size() == 0) {
-		if (cell->type == "$reduce_and")  module->connect(RTLIL::SigSig(sig_y, RTLIL::SigSpec(1, sig_y.size())));
-		if (cell->type == "$reduce_or")   module->connect(RTLIL::SigSig(sig_y, RTLIL::SigSpec(0, sig_y.size())));
-		if (cell->type == "$reduce_xor")  module->connect(RTLIL::SigSig(sig_y, RTLIL::SigSpec(0, sig_y.size())));
-		if (cell->type == "$reduce_xnor") module->connect(RTLIL::SigSig(sig_y, RTLIL::SigSpec(1, sig_y.size())));
-		if (cell->type == "$reduce_bool") module->connect(RTLIL::SigSig(sig_y, RTLIL::SigSpec(0, sig_y.size())));
+		if (cell->type == ID($reduce_and))  module->connect(RTLIL::SigSig(sig_y, RTLIL::SigSpec(1, sig_y.size())));
+		if (cell->type == ID($reduce_or))   module->connect(RTLIL::SigSig(sig_y, RTLIL::SigSpec(0, sig_y.size())));
+		if (cell->type == ID($reduce_xor))  module->connect(RTLIL::SigSig(sig_y, RTLIL::SigSpec(0, sig_y.size())));
+		if (cell->type == ID($reduce_xnor)) module->connect(RTLIL::SigSig(sig_y, RTLIL::SigSpec(1, sig_y.size())));
+		if (cell->type == ID($reduce_bool)) module->connect(RTLIL::SigSig(sig_y, RTLIL::SigSpec(0, sig_y.size())));
 		return;
 	}
 
@@ -112,12 +112,12 @@ void simplemap_reduce(RTLIL::Module *module, RTLIL::Cell *cell)
 		sig_y = sig_y.extract(0, 1);
 	}
 
-	std::string gate_type;
-	if (cell->type == "$reduce_and")  gate_type = "$_AND_";
-	if (cell->type == "$reduce_or")   gate_type = "$_OR_";
-	if (cell->type == "$reduce_xor")  gate_type = "$_XOR_";
-	if (cell->type == "$reduce_xnor") gate_type = "$_XOR_";
-	if (cell->type == "$reduce_bool") gate_type = "$_OR_";
+	IdString gate_type;
+	if (cell->type == ID($reduce_and))  gate_type = ID($_AND_);
+	if (cell->type == ID($reduce_or))   gate_type = ID($_OR_);
+	if (cell->type == ID($reduce_xor))  gate_type = ID($_XOR_);
+	if (cell->type == ID($reduce_xnor)) gate_type = ID($_XOR_);
+	if (cell->type == ID($reduce_bool)) gate_type = ID($_OR_);
 	log_assert(!gate_type.empty());
 
 	RTLIL::Cell *last_output_cell = NULL;
@@ -134,22 +134,22 @@ void simplemap_reduce(RTLIL::Module *module, RTLIL::Cell *cell)
 			}
 
 			RTLIL::Cell *gate = module->addCell(NEW_ID, gate_type);
-			gate->add_strpool_attribute("\\src", cell->get_strpool_attribute("\\src"));
-			gate->setPort("\\A", sig_a[i]);
-			gate->setPort("\\B", sig_a[i+1]);
-			gate->setPort("\\Y", sig_t[i/2]);
+			gate->add_strpool_attribute(ID(src), cell->get_strpool_attribute(ID(src)));
+			gate->setPort(ID(A), sig_a[i]);
+			gate->setPort(ID(B), sig_a[i+1]);
+			gate->setPort(ID(Y), sig_t[i/2]);
 			last_output_cell = gate;
 		}
 
 		sig_a = sig_t;
 	}
 
-	if (cell->type == "$reduce_xnor") {
+	if (cell->type == ID($reduce_xnor)) {
 		RTLIL::SigSpec sig_t = module->addWire(NEW_ID);
-		RTLIL::Cell *gate = module->addCell(NEW_ID, "$_NOT_");
-		gate->add_strpool_attribute("\\src", cell->get_strpool_attribute("\\src"));
-		gate->setPort("\\A", sig_a);
-		gate->setPort("\\Y", sig_t);
+		RTLIL::Cell *gate = module->addCell(NEW_ID, ID($_NOT_));
+		gate->add_strpool_attribute(ID(src), cell->get_strpool_attribute(ID(src)));
+		gate->setPort(ID(A), sig_a);
+		gate->setPort(ID(Y), sig_t);
 		last_output_cell = gate;
 		sig_a = sig_t;
 	}
@@ -157,7 +157,7 @@ void simplemap_reduce(RTLIL::Module *module, RTLIL::Cell *cell)
 	if (last_output_cell == NULL) {
 		module->connect(RTLIL::SigSig(sig_y, sig_a));
 	} else {
-		last_output_cell->setPort("\\Y", sig_y);
+		last_output_cell->setPort(ID(Y), sig_y);
 	}
 }
 
@@ -174,26 +174,26 @@ static void logic_reduce(RTLIL::Module *module, RTLIL::SigSpec &sig, RTLIL::Cell
 				continue;
 			}
 
-			RTLIL::Cell *gate = module->addCell(NEW_ID, "$_OR_");
-			gate->add_strpool_attribute("\\src", cell->get_strpool_attribute("\\src"));
-			gate->setPort("\\A", sig[i]);
-			gate->setPort("\\B", sig[i+1]);
-			gate->setPort("\\Y", sig_t[i/2]);
+			RTLIL::Cell *gate = module->addCell(NEW_ID, ID($_OR_));
+			gate->add_strpool_attribute(ID(src), cell->get_strpool_attribute(ID(src)));
+			gate->setPort(ID(A), sig[i]);
+			gate->setPort(ID(B), sig[i+1]);
+			gate->setPort(ID(Y), sig_t[i/2]);
 		}
 
 		sig = sig_t;
 	}
 
 	if (sig.size() == 0)
-		sig = RTLIL::SigSpec(0, 1);
+		sig = State::S0;
 }
 
 void simplemap_lognot(RTLIL::Module *module, RTLIL::Cell *cell)
 {
-	RTLIL::SigSpec sig_a = cell->getPort("\\A");
+	RTLIL::SigSpec sig_a = cell->getPort(ID(A));
 	logic_reduce(module, sig_a, cell);
 
-	RTLIL::SigSpec sig_y = cell->getPort("\\Y");
+	RTLIL::SigSpec sig_y = cell->getPort(ID(Y));
 
 	if (sig_y.size() == 0)
 		return;
@@ -203,21 +203,21 @@ void simplemap_lognot(RTLIL::Module *module, RTLIL::Cell *cell)
 		sig_y = sig_y.extract(0, 1);
 	}
 
-	RTLIL::Cell *gate = module->addCell(NEW_ID, "$_NOT_");
-	gate->add_strpool_attribute("\\src", cell->get_strpool_attribute("\\src"));
-	gate->setPort("\\A", sig_a);
-	gate->setPort("\\Y", sig_y);
+	RTLIL::Cell *gate = module->addCell(NEW_ID, ID($_NOT_));
+	gate->add_strpool_attribute(ID(src), cell->get_strpool_attribute(ID(src)));
+	gate->setPort(ID(A), sig_a);
+	gate->setPort(ID(Y), sig_y);
 }
 
 void simplemap_logbin(RTLIL::Module *module, RTLIL::Cell *cell)
 {
-	RTLIL::SigSpec sig_a = cell->getPort("\\A");
+	RTLIL::SigSpec sig_a = cell->getPort(ID(A));
 	logic_reduce(module, sig_a, cell);
 
-	RTLIL::SigSpec sig_b = cell->getPort("\\B");
+	RTLIL::SigSpec sig_b = cell->getPort(ID(B));
 	logic_reduce(module, sig_b, cell);
 
-	RTLIL::SigSpec sig_y = cell->getPort("\\Y");
+	RTLIL::SigSpec sig_y = cell->getPort(ID(Y));
 
 	if (sig_y.size() == 0)
 		return;
@@ -227,41 +227,41 @@ void simplemap_logbin(RTLIL::Module *module, RTLIL::Cell *cell)
 		sig_y = sig_y.extract(0, 1);
 	}
 
-	std::string gate_type;
-	if (cell->type == "$logic_and") gate_type = "$_AND_";
-	if (cell->type == "$logic_or")  gate_type = "$_OR_";
+	IdString gate_type;
+	if (cell->type == ID($logic_and)) gate_type = ID($_AND_);
+	if (cell->type == ID($logic_or))  gate_type = ID($_OR_);
 	log_assert(!gate_type.empty());
 
 	RTLIL::Cell *gate = module->addCell(NEW_ID, gate_type);
-	gate->add_strpool_attribute("\\src", cell->get_strpool_attribute("\\src"));
-	gate->setPort("\\A", sig_a);
-	gate->setPort("\\B", sig_b);
-	gate->setPort("\\Y", sig_y);
+	gate->add_strpool_attribute(ID(src), cell->get_strpool_attribute(ID(src)));
+	gate->setPort(ID(A), sig_a);
+	gate->setPort(ID(B), sig_b);
+	gate->setPort(ID(Y), sig_y);
 }
 
 void simplemap_eqne(RTLIL::Module *module, RTLIL::Cell *cell)
 {
-	RTLIL::SigSpec sig_a = cell->getPort("\\A");
-	RTLIL::SigSpec sig_b = cell->getPort("\\B");
-	RTLIL::SigSpec sig_y = cell->getPort("\\Y");
-	bool is_signed = cell->parameters.at("\\A_SIGNED").as_bool();
-	bool is_ne = cell->type == "$ne" || cell->type == "$nex";
+	RTLIL::SigSpec sig_a = cell->getPort(ID(A));
+	RTLIL::SigSpec sig_b = cell->getPort(ID(B));
+	RTLIL::SigSpec sig_y = cell->getPort(ID(Y));
+	bool is_signed = cell->parameters.at(ID(A_SIGNED)).as_bool();
+	bool is_ne = cell->type.in(ID($ne), ID($nex));
 
 	RTLIL::SigSpec xor_out = module->addWire(NEW_ID, max(GetSize(sig_a), GetSize(sig_b)));
 	RTLIL::Cell *xor_cell = module->addXor(NEW_ID, sig_a, sig_b, xor_out, is_signed);
-	xor_cell->add_strpool_attribute("\\src", cell->get_strpool_attribute("\\src"));
+	xor_cell->add_strpool_attribute(ID(src), cell->get_strpool_attribute(ID(src)));
 	simplemap_bitop(module, xor_cell);
 	module->remove(xor_cell);
 
 	RTLIL::SigSpec reduce_out = is_ne ? sig_y : module->addWire(NEW_ID);
 	RTLIL::Cell *reduce_cell = module->addReduceOr(NEW_ID, xor_out, reduce_out);
-	reduce_cell->add_strpool_attribute("\\src", cell->get_strpool_attribute("\\src"));
+	reduce_cell->add_strpool_attribute(ID(src), cell->get_strpool_attribute(ID(src)));
 	simplemap_reduce(module, reduce_cell);
 	module->remove(reduce_cell);
 
 	if (!is_ne) {
 		RTLIL::Cell *not_cell = module->addLogicNot(NEW_ID, reduce_out, sig_y);
-		not_cell->add_strpool_attribute("\\src", cell->get_strpool_attribute("\\src"));
+		not_cell->add_strpool_attribute(ID(src), cell->get_strpool_attribute(ID(src)));
 		simplemap_lognot(module, not_cell);
 		module->remove(not_cell);
 	}
@@ -269,65 +269,65 @@ void simplemap_eqne(RTLIL::Module *module, RTLIL::Cell *cell)
 
 void simplemap_mux(RTLIL::Module *module, RTLIL::Cell *cell)
 {
-	RTLIL::SigSpec sig_a = cell->getPort("\\A");
-	RTLIL::SigSpec sig_b = cell->getPort("\\B");
-	RTLIL::SigSpec sig_y = cell->getPort("\\Y");
+	RTLIL::SigSpec sig_a = cell->getPort(ID(A));
+	RTLIL::SigSpec sig_b = cell->getPort(ID(B));
+	RTLIL::SigSpec sig_y = cell->getPort(ID(Y));
 
 	for (int i = 0; i < GetSize(sig_y); i++) {
-		RTLIL::Cell *gate = module->addCell(NEW_ID, "$_MUX_");
-		gate->add_strpool_attribute("\\src", cell->get_strpool_attribute("\\src"));
-		gate->setPort("\\A", sig_a[i]);
-		gate->setPort("\\B", sig_b[i]);
-		gate->setPort("\\S", cell->getPort("\\S"));
-		gate->setPort("\\Y", sig_y[i]);
+		RTLIL::Cell *gate = module->addCell(NEW_ID, ID($_MUX_));
+		gate->add_strpool_attribute(ID(src), cell->get_strpool_attribute(ID(src)));
+		gate->setPort(ID(A), sig_a[i]);
+		gate->setPort(ID(B), sig_b[i]);
+		gate->setPort(ID(S), cell->getPort(ID(S)));
+		gate->setPort(ID(Y), sig_y[i]);
 	}
 }
 
 void simplemap_tribuf(RTLIL::Module *module, RTLIL::Cell *cell)
 {
-	RTLIL::SigSpec sig_a = cell->getPort("\\A");
-	RTLIL::SigSpec sig_e = cell->getPort("\\EN");
-	RTLIL::SigSpec sig_y = cell->getPort("\\Y");
+	RTLIL::SigSpec sig_a = cell->getPort(ID(A));
+	RTLIL::SigSpec sig_e = cell->getPort(ID(EN));
+	RTLIL::SigSpec sig_y = cell->getPort(ID(Y));
 
 	for (int i = 0; i < GetSize(sig_y); i++) {
-		RTLIL::Cell *gate = module->addCell(NEW_ID, "$_TBUF_");
-		gate->add_strpool_attribute("\\src", cell->get_strpool_attribute("\\src"));
-		gate->setPort("\\A", sig_a[i]);
-		gate->setPort("\\E", sig_e);
-		gate->setPort("\\Y", sig_y[i]);
+		RTLIL::Cell *gate = module->addCell(NEW_ID, ID($_TBUF_));
+		gate->add_strpool_attribute(ID(src), cell->get_strpool_attribute(ID(src)));
+		gate->setPort(ID(A), sig_a[i]);
+		gate->setPort(ID(E), sig_e);
+		gate->setPort(ID(Y), sig_y[i]);
 	}
 }
 
 void simplemap_lut(RTLIL::Module *module, RTLIL::Cell *cell)
 {
-	SigSpec lut_ctrl = cell->getPort("\\A");
-	SigSpec lut_data = cell->getParam("\\LUT");
-	lut_data.extend_u0(1 << cell->getParam("\\WIDTH").as_int());
+	SigSpec lut_ctrl = cell->getPort(ID(A));
+	SigSpec lut_data = cell->getParam(ID(LUT));
+	lut_data.extend_u0(1 << cell->getParam(ID(WIDTH)).as_int());
 
 	for (int idx = 0; GetSize(lut_data) > 1; idx++) {
 		SigSpec sig_s = lut_ctrl[idx];
 		SigSpec new_lut_data = module->addWire(NEW_ID, GetSize(lut_data)/2);
 		for (int i = 0; i < GetSize(lut_data); i += 2) {
-			RTLIL::Cell *gate = module->addCell(NEW_ID, "$_MUX_");
-			gate->add_strpool_attribute("\\src", cell->get_strpool_attribute("\\src"));
-			gate->setPort("\\A", lut_data[i]);
-			gate->setPort("\\B", lut_data[i+1]);
-			gate->setPort("\\S", lut_ctrl[idx]);
-			gate->setPort("\\Y", new_lut_data[i/2]);
+			RTLIL::Cell *gate = module->addCell(NEW_ID, ID($_MUX_));
+			gate->add_strpool_attribute(ID(src), cell->get_strpool_attribute(ID(src)));
+			gate->setPort(ID(A), lut_data[i]);
+			gate->setPort(ID(B), lut_data[i+1]);
+			gate->setPort(ID(S), lut_ctrl[idx]);
+			gate->setPort(ID(Y), new_lut_data[i/2]);
 		}
 		lut_data = new_lut_data;
 	}
 
-	module->connect(cell->getPort("\\Y"), lut_data);
+	module->connect(cell->getPort(ID(Y)), lut_data);
 }
 
 void simplemap_sop(RTLIL::Module *module, RTLIL::Cell *cell)
 {
-	SigSpec ctrl = cell->getPort("\\A");
-	SigSpec table = cell->getParam("\\TABLE");
+	SigSpec ctrl = cell->getPort(ID(A));
+	SigSpec table = cell->getParam(ID(TABLE));
 
-	int width = cell->getParam("\\WIDTH").as_int();
-	int depth = cell->getParam("\\DEPTH").as_int();
+	int width = cell->getParam(ID(WIDTH)).as_int();
+	int depth = cell->getParam(ID(DEPTH)).as_int();
 	table.extend_u0(2 * width * depth);
 
 	SigSpec products;
@@ -348,213 +348,213 @@ void simplemap_sop(RTLIL::Module *module, RTLIL::Cell *cell)
 		products.append(GetSize(in) > 0 ? module->Eq(NEW_ID, in, pat) : State::S1);
 	}
 
-	module->connect(cell->getPort("\\Y"), module->ReduceOr(NEW_ID, products));
+	module->connect(cell->getPort(ID(Y)), module->ReduceOr(NEW_ID, products));
 }
 
 void simplemap_slice(RTLIL::Module *module, RTLIL::Cell *cell)
 {
-	int offset = cell->parameters.at("\\OFFSET").as_int();
-	RTLIL::SigSpec sig_a = cell->getPort("\\A");
-	RTLIL::SigSpec sig_y = cell->getPort("\\Y");
+	int offset = cell->parameters.at(ID(OFFSET)).as_int();
+	RTLIL::SigSpec sig_a = cell->getPort(ID(A));
+	RTLIL::SigSpec sig_y = cell->getPort(ID(Y));
 	module->connect(RTLIL::SigSig(sig_y, sig_a.extract(offset, sig_y.size())));
 }
 
 void simplemap_concat(RTLIL::Module *module, RTLIL::Cell *cell)
 {
-	RTLIL::SigSpec sig_ab = cell->getPort("\\A");
-	sig_ab.append(cell->getPort("\\B"));
-	RTLIL::SigSpec sig_y = cell->getPort("\\Y");
+	RTLIL::SigSpec sig_ab = cell->getPort(ID(A));
+	sig_ab.append(cell->getPort(ID(B)));
+	RTLIL::SigSpec sig_y = cell->getPort(ID(Y));
 	module->connect(RTLIL::SigSig(sig_y, sig_ab));
 }
 
 void simplemap_sr(RTLIL::Module *module, RTLIL::Cell *cell)
 {
-	int width = cell->parameters.at("\\WIDTH").as_int();
-	char set_pol = cell->parameters.at("\\SET_POLARITY").as_bool() ? 'P' : 'N';
-	char clr_pol = cell->parameters.at("\\CLR_POLARITY").as_bool() ? 'P' : 'N';
+	int width = cell->parameters.at(ID(WIDTH)).as_int();
+	char set_pol = cell->parameters.at(ID(SET_POLARITY)).as_bool() ? 'P' : 'N';
+	char clr_pol = cell->parameters.at(ID(CLR_POLARITY)).as_bool() ? 'P' : 'N';
 
-	RTLIL::SigSpec sig_s = cell->getPort("\\SET");
-	RTLIL::SigSpec sig_r = cell->getPort("\\CLR");
-	RTLIL::SigSpec sig_q = cell->getPort("\\Q");
+	RTLIL::SigSpec sig_s = cell->getPort(ID(SET));
+	RTLIL::SigSpec sig_r = cell->getPort(ID(CLR));
+	RTLIL::SigSpec sig_q = cell->getPort(ID(Q));
 
 	std::string gate_type = stringf("$_SR_%c%c_", set_pol, clr_pol);
 
 	for (int i = 0; i < width; i++) {
 		RTLIL::Cell *gate = module->addCell(NEW_ID, gate_type);
-		gate->add_strpool_attribute("\\src", cell->get_strpool_attribute("\\src"));
-		gate->setPort("\\S", sig_s[i]);
-		gate->setPort("\\R", sig_r[i]);
-		gate->setPort("\\Q", sig_q[i]);
+		gate->add_strpool_attribute(ID(src), cell->get_strpool_attribute(ID(src)));
+		gate->setPort(ID(S), sig_s[i]);
+		gate->setPort(ID(R), sig_r[i]);
+		gate->setPort(ID(Q), sig_q[i]);
 	}
 }
 
 void simplemap_ff(RTLIL::Module *module, RTLIL::Cell *cell)
 {
-	int width = cell->parameters.at("\\WIDTH").as_int();
+	int width = cell->parameters.at(ID(WIDTH)).as_int();
 
-	RTLIL::SigSpec sig_d = cell->getPort("\\D");
-	RTLIL::SigSpec sig_q = cell->getPort("\\Q");
+	RTLIL::SigSpec sig_d = cell->getPort(ID(D));
+	RTLIL::SigSpec sig_q = cell->getPort(ID(Q));
 
-	std::string gate_type = "$_FF_";
+	IdString gate_type = ID($_FF_);
 
 	for (int i = 0; i < width; i++) {
 		RTLIL::Cell *gate = module->addCell(NEW_ID, gate_type);
-		gate->add_strpool_attribute("\\src", cell->get_strpool_attribute("\\src"));
-		gate->setPort("\\D", sig_d[i]);
-		gate->setPort("\\Q", sig_q[i]);
+		gate->add_strpool_attribute(ID(src), cell->get_strpool_attribute(ID(src)));
+		gate->setPort(ID(D), sig_d[i]);
+		gate->setPort(ID(Q), sig_q[i]);
 	}
 }
 
 void simplemap_dff(RTLIL::Module *module, RTLIL::Cell *cell)
 {
-	int width = cell->parameters.at("\\WIDTH").as_int();
-	char clk_pol = cell->parameters.at("\\CLK_POLARITY").as_bool() ? 'P' : 'N';
+	int width = cell->parameters.at(ID(WIDTH)).as_int();
+	char clk_pol = cell->parameters.at(ID(CLK_POLARITY)).as_bool() ? 'P' : 'N';
 
-	RTLIL::SigSpec sig_clk = cell->getPort("\\CLK");
-	RTLIL::SigSpec sig_d = cell->getPort("\\D");
-	RTLIL::SigSpec sig_q = cell->getPort("\\Q");
+	RTLIL::SigSpec sig_clk = cell->getPort(ID(CLK));
+	RTLIL::SigSpec sig_d = cell->getPort(ID(D));
+	RTLIL::SigSpec sig_q = cell->getPort(ID(Q));
 
-	std::string gate_type = stringf("$_DFF_%c_", clk_pol);
+	IdString gate_type = stringf("$_DFF_%c_", clk_pol);
 
 	for (int i = 0; i < width; i++) {
 		RTLIL::Cell *gate = module->addCell(NEW_ID, gate_type);
-		gate->add_strpool_attribute("\\src", cell->get_strpool_attribute("\\src"));
-		gate->setPort("\\C", sig_clk);
-		gate->setPort("\\D", sig_d[i]);
-		gate->setPort("\\Q", sig_q[i]);
+		gate->add_strpool_attribute(ID(src), cell->get_strpool_attribute(ID(src)));
+		gate->setPort(ID(C), sig_clk);
+		gate->setPort(ID(D), sig_d[i]);
+		gate->setPort(ID(Q), sig_q[i]);
 	}
 }
 
 void simplemap_dffe(RTLIL::Module *module, RTLIL::Cell *cell)
 {
-	int width = cell->parameters.at("\\WIDTH").as_int();
-	char clk_pol = cell->parameters.at("\\CLK_POLARITY").as_bool() ? 'P' : 'N';
-	char en_pol = cell->parameters.at("\\EN_POLARITY").as_bool() ? 'P' : 'N';
+	int width = cell->parameters.at(ID(WIDTH)).as_int();
+	char clk_pol = cell->parameters.at(ID(CLK_POLARITY)).as_bool() ? 'P' : 'N';
+	char en_pol = cell->parameters.at(ID(EN_POLARITY)).as_bool() ? 'P' : 'N';
 
-	RTLIL::SigSpec sig_clk = cell->getPort("\\CLK");
-	RTLIL::SigSpec sig_en = cell->getPort("\\EN");
-	RTLIL::SigSpec sig_d = cell->getPort("\\D");
-	RTLIL::SigSpec sig_q = cell->getPort("\\Q");
+	RTLIL::SigSpec sig_clk = cell->getPort(ID(CLK));
+	RTLIL::SigSpec sig_en = cell->getPort(ID(EN));
+	RTLIL::SigSpec sig_d = cell->getPort(ID(D));
+	RTLIL::SigSpec sig_q = cell->getPort(ID(Q));
 
-	std::string gate_type = stringf("$_DFFE_%c%c_", clk_pol, en_pol);
+	IdString gate_type = stringf("$_DFFE_%c%c_", clk_pol, en_pol);
 
 	for (int i = 0; i < width; i++) {
 		RTLIL::Cell *gate = module->addCell(NEW_ID, gate_type);
-		gate->add_strpool_attribute("\\src", cell->get_strpool_attribute("\\src"));
-		gate->setPort("\\C", sig_clk);
-		gate->setPort("\\E", sig_en);
-		gate->setPort("\\D", sig_d[i]);
-		gate->setPort("\\Q", sig_q[i]);
+		gate->add_strpool_attribute(ID(src), cell->get_strpool_attribute(ID(src)));
+		gate->setPort(ID(C), sig_clk);
+		gate->setPort(ID(E), sig_en);
+		gate->setPort(ID(D), sig_d[i]);
+		gate->setPort(ID(Q), sig_q[i]);
 	}
 }
 
 void simplemap_dffsr(RTLIL::Module *module, RTLIL::Cell *cell)
 {
-	int width = cell->parameters.at("\\WIDTH").as_int();
-	char clk_pol = cell->parameters.at("\\CLK_POLARITY").as_bool() ? 'P' : 'N';
-	char set_pol = cell->parameters.at("\\SET_POLARITY").as_bool() ? 'P' : 'N';
-	char clr_pol = cell->parameters.at("\\CLR_POLARITY").as_bool() ? 'P' : 'N';
+	int width = cell->parameters.at(ID(WIDTH)).as_int();
+	char clk_pol = cell->parameters.at(ID(CLK_POLARITY)).as_bool() ? 'P' : 'N';
+	char set_pol = cell->parameters.at(ID(SET_POLARITY)).as_bool() ? 'P' : 'N';
+	char clr_pol = cell->parameters.at(ID(CLR_POLARITY)).as_bool() ? 'P' : 'N';
 
-	RTLIL::SigSpec sig_clk = cell->getPort("\\CLK");
-	RTLIL::SigSpec sig_s = cell->getPort("\\SET");
-	RTLIL::SigSpec sig_r = cell->getPort("\\CLR");
-	RTLIL::SigSpec sig_d = cell->getPort("\\D");
-	RTLIL::SigSpec sig_q = cell->getPort("\\Q");
+	RTLIL::SigSpec sig_clk = cell->getPort(ID(CLK));
+	RTLIL::SigSpec sig_s = cell->getPort(ID(SET));
+	RTLIL::SigSpec sig_r = cell->getPort(ID(CLR));
+	RTLIL::SigSpec sig_d = cell->getPort(ID(D));
+	RTLIL::SigSpec sig_q = cell->getPort(ID(Q));
 
-	std::string gate_type = stringf("$_DFFSR_%c%c%c_", clk_pol, set_pol, clr_pol);
+	IdString gate_type = stringf("$_DFFSR_%c%c%c_", clk_pol, set_pol, clr_pol);
 
 	for (int i = 0; i < width; i++) {
 		RTLIL::Cell *gate = module->addCell(NEW_ID, gate_type);
-		gate->add_strpool_attribute("\\src", cell->get_strpool_attribute("\\src"));
-		gate->setPort("\\C", sig_clk);
-		gate->setPort("\\S", sig_s[i]);
-		gate->setPort("\\R", sig_r[i]);
-		gate->setPort("\\D", sig_d[i]);
-		gate->setPort("\\Q", sig_q[i]);
+		gate->add_strpool_attribute(ID(src), cell->get_strpool_attribute(ID(src)));
+		gate->setPort(ID(C), sig_clk);
+		gate->setPort(ID(S), sig_s[i]);
+		gate->setPort(ID(R), sig_r[i]);
+		gate->setPort(ID(D), sig_d[i]);
+		gate->setPort(ID(Q), sig_q[i]);
 	}
 }
 
 void simplemap_adff(RTLIL::Module *module, RTLIL::Cell *cell)
 {
-	int width = cell->parameters.at("\\WIDTH").as_int();
-	char clk_pol = cell->parameters.at("\\CLK_POLARITY").as_bool() ? 'P' : 'N';
-	char rst_pol = cell->parameters.at("\\ARST_POLARITY").as_bool() ? 'P' : 'N';
+	int width = cell->parameters.at(ID(WIDTH)).as_int();
+	char clk_pol = cell->parameters.at(ID(CLK_POLARITY)).as_bool() ? 'P' : 'N';
+	char rst_pol = cell->parameters.at(ID(ARST_POLARITY)).as_bool() ? 'P' : 'N';
 
-	std::vector<RTLIL::State> rst_val = cell->parameters.at("\\ARST_VALUE").bits;
+	std::vector<RTLIL::State> rst_val = cell->parameters.at(ID(ARST_VALUE)).bits;
 	while (int(rst_val.size()) < width)
 		rst_val.push_back(RTLIL::State::S0);
 
-	RTLIL::SigSpec sig_clk = cell->getPort("\\CLK");
-	RTLIL::SigSpec sig_rst = cell->getPort("\\ARST");
-	RTLIL::SigSpec sig_d = cell->getPort("\\D");
-	RTLIL::SigSpec sig_q = cell->getPort("\\Q");
+	RTLIL::SigSpec sig_clk = cell->getPort(ID(CLK));
+	RTLIL::SigSpec sig_rst = cell->getPort(ID(ARST));
+	RTLIL::SigSpec sig_d = cell->getPort(ID(D));
+	RTLIL::SigSpec sig_q = cell->getPort(ID(Q));
 
-	std::string gate_type_0 = stringf("$_DFF_%c%c0_", clk_pol, rst_pol);
-	std::string gate_type_1 = stringf("$_DFF_%c%c1_", clk_pol, rst_pol);
+	IdString gate_type_0 = stringf("$_DFF_%c%c0_", clk_pol, rst_pol);
+	IdString gate_type_1 = stringf("$_DFF_%c%c1_", clk_pol, rst_pol);
 
 	for (int i = 0; i < width; i++) {
 		RTLIL::Cell *gate = module->addCell(NEW_ID, rst_val.at(i) == RTLIL::State::S1 ? gate_type_1 : gate_type_0);
-		gate->add_strpool_attribute("\\src", cell->get_strpool_attribute("\\src"));
-		gate->setPort("\\C", sig_clk);
-		gate->setPort("\\R", sig_rst);
-		gate->setPort("\\D", sig_d[i]);
-		gate->setPort("\\Q", sig_q[i]);
+		gate->add_strpool_attribute(ID(src), cell->get_strpool_attribute(ID(src)));
+		gate->setPort(ID(C), sig_clk);
+		gate->setPort(ID(R), sig_rst);
+		gate->setPort(ID(D), sig_d[i]);
+		gate->setPort(ID(Q), sig_q[i]);
 	}
 }
 
 void simplemap_dlatch(RTLIL::Module *module, RTLIL::Cell *cell)
 {
-	int width = cell->parameters.at("\\WIDTH").as_int();
-	char en_pol = cell->parameters.at("\\EN_POLARITY").as_bool() ? 'P' : 'N';
+	int width = cell->parameters.at(ID(WIDTH)).as_int();
+	char en_pol = cell->parameters.at(ID(EN_POLARITY)).as_bool() ? 'P' : 'N';
 
-	RTLIL::SigSpec sig_en = cell->getPort("\\EN");
-	RTLIL::SigSpec sig_d = cell->getPort("\\D");
-	RTLIL::SigSpec sig_q = cell->getPort("\\Q");
+	RTLIL::SigSpec sig_en = cell->getPort(ID(EN));
+	RTLIL::SigSpec sig_d = cell->getPort(ID(D));
+	RTLIL::SigSpec sig_q = cell->getPort(ID(Q));
 
-	std::string gate_type = stringf("$_DLATCH_%c_", en_pol);
+	IdString gate_type = stringf("$_DLATCH_%c_", en_pol);
 
 	for (int i = 0; i < width; i++) {
 		RTLIL::Cell *gate = module->addCell(NEW_ID, gate_type);
-		gate->add_strpool_attribute("\\src", cell->get_strpool_attribute("\\src"));
-		gate->setPort("\\E", sig_en);
-		gate->setPort("\\D", sig_d[i]);
-		gate->setPort("\\Q", sig_q[i]);
+		gate->add_strpool_attribute(ID(src), cell->get_strpool_attribute(ID(src)));
+		gate->setPort(ID(E), sig_en);
+		gate->setPort(ID(D), sig_d[i]);
+		gate->setPort(ID(Q), sig_q[i]);
 	}
 }
 
 void simplemap_get_mappers(std::map<RTLIL::IdString, void(*)(RTLIL::Module*, RTLIL::Cell*)> &mappers)
 {
-	mappers["$not"]         = simplemap_not;
-	mappers["$pos"]         = simplemap_pos;
-	mappers["$and"]         = simplemap_bitop;
-	mappers["$or"]          = simplemap_bitop;
-	mappers["$xor"]         = simplemap_bitop;
-	mappers["$xnor"]        = simplemap_bitop;
-	mappers["$reduce_and"]  = simplemap_reduce;
-	mappers["$reduce_or"]   = simplemap_reduce;
-	mappers["$reduce_xor"]  = simplemap_reduce;
-	mappers["$reduce_xnor"] = simplemap_reduce;
-	mappers["$reduce_bool"] = simplemap_reduce;
-	mappers["$logic_not"]   = simplemap_lognot;
-	mappers["$logic_and"]   = simplemap_logbin;
-	mappers["$logic_or"]    = simplemap_logbin;
-	mappers["$eq"]          = simplemap_eqne;
-	mappers["$eqx"]         = simplemap_eqne;
-	mappers["$ne"]          = simplemap_eqne;
-	mappers["$nex"]         = simplemap_eqne;
-	mappers["$mux"]         = simplemap_mux;
-	mappers["$tribuf"]      = simplemap_tribuf;
-	mappers["$lut"]         = simplemap_lut;
-	mappers["$sop"]         = simplemap_sop;
-	mappers["$slice"]       = simplemap_slice;
-	mappers["$concat"]      = simplemap_concat;
-	mappers["$sr"]          = simplemap_sr;
-	mappers["$ff"]          = simplemap_ff;
-	mappers["$dff"]         = simplemap_dff;
-	mappers["$dffe"]        = simplemap_dffe;
-	mappers["$dffsr"]       = simplemap_dffsr;
-	mappers["$adff"]        = simplemap_adff;
-	mappers["$dlatch"]      = simplemap_dlatch;
+	mappers[ID($not)]         = simplemap_not;
+	mappers[ID($pos)]         = simplemap_pos;
+	mappers[ID($and)]         = simplemap_bitop;
+	mappers[ID($or)]          = simplemap_bitop;
+	mappers[ID($xor)]         = simplemap_bitop;
+	mappers[ID($xnor)]        = simplemap_bitop;
+	mappers[ID($reduce_and)]  = simplemap_reduce;
+	mappers[ID($reduce_or)]   = simplemap_reduce;
+	mappers[ID($reduce_xor)]  = simplemap_reduce;
+	mappers[ID($reduce_xnor)] = simplemap_reduce;
+	mappers[ID($reduce_bool)] = simplemap_reduce;
+	mappers[ID($logic_not)]   = simplemap_lognot;
+	mappers[ID($logic_and)]   = simplemap_logbin;
+	mappers[ID($logic_or)]    = simplemap_logbin;
+	mappers[ID($eq)]          = simplemap_eqne;
+	mappers[ID($eqx)]         = simplemap_eqne;
+	mappers[ID($ne)]          = simplemap_eqne;
+	mappers[ID($nex)]         = simplemap_eqne;
+	mappers[ID($mux)]         = simplemap_mux;
+	mappers[ID($tribuf)]      = simplemap_tribuf;
+	mappers[ID($lut)]         = simplemap_lut;
+	mappers[ID($sop)]         = simplemap_sop;
+	mappers[ID($slice)]       = simplemap_slice;
+	mappers[ID($concat)]      = simplemap_concat;
+	mappers[ID($sr)]          = simplemap_sr;
+	mappers[ID($ff)]          = simplemap_ff;
+	mappers[ID($dff)]         = simplemap_dff;
+	mappers[ID($dffe)]        = simplemap_dffe;
+	mappers[ID($dffsr)]       = simplemap_dffsr;
+	mappers[ID($adff)]        = simplemap_adff;
+	mappers[ID($dlatch)]      = simplemap_dlatch;
 }
 
 void simplemap(RTLIL::Module *module, RTLIL::Cell *cell)