From c3145863e7a815f60b62b8d015506672ccdbcd89 Mon Sep 17 00:00:00 2001
From: Andrew Zonenberg <azonenberg@drawersteak.com>
Date: Mon, 28 Aug 2017 09:06:37 -0700
Subject: [PATCH 1/2] Reformatted GP_COUNTx_ADV resets to avoid Yosys thinking
 that they're multi-edge-sensitive and getting confused.

---
 techlibs/greenpak4/cells_sim_digital.v | 72 +++++++++++++-------------
 1 file changed, 36 insertions(+), 36 deletions(-)

diff --git a/techlibs/greenpak4/cells_sim_digital.v b/techlibs/greenpak4/cells_sim_digital.v
index 043cd18d4..b87795ceb 100644
--- a/techlibs/greenpak4/cells_sim_digital.v
+++ b/techlibs/greenpak4/cells_sim_digital.v
@@ -147,7 +147,15 @@ module GP_COUNT14_ADV(input CLK, input RST, output reg OUT,
 			"RISING": begin
 				always @(posedge CLK, posedge RST) begin
 
-					if(KEEP) begin
+					//Resets
+					if(RST) begin
+						if(RESET_VALUE == "ZERO")
+							count	<= 0;
+						else
+							count	<= COUNT_TO;
+					end
+
+					else if(KEEP) begin
 					end
 					else if(UP) begin
 						count		<= count + 1'd1;
@@ -161,21 +169,21 @@ module GP_COUNT14_ADV(input CLK, input RST, output reg OUT,
 							count	<= COUNT_TO;
 					end
 
-					//Resets
-					if(RST) begin
-						if(RESET_VALUE == "ZERO")
-							count	<= 0;
-						else
-							count	<= COUNT_TO;
-					end
-
 				end
 			end
 
 			"FALLING": begin
 				always @(posedge CLK, negedge RST) begin
 
-					if(KEEP) begin
+					//Resets
+					if(!RST) begin
+						if(RESET_VALUE == "ZERO")
+							count	<= 0;
+						else
+							count	<= COUNT_TO;
+					end
+
+					else if(KEEP) begin
 					end
 					else if(UP) begin
 						count		<= count + 1'd1;
@@ -189,14 +197,6 @@ module GP_COUNT14_ADV(input CLK, input RST, output reg OUT,
 							count	<= COUNT_TO;
 					end
 
-					//Resets
-					if(!RST) begin
-						if(RESET_VALUE == "ZERO")
-							count	<= 0;
-						else
-							count	<= COUNT_TO;
-					end
-
 				end
 			end
 
@@ -286,8 +286,16 @@ module GP_COUNT8_ADV(input CLK, input RST, output reg OUT,
 			"RISING": begin
 				always @(posedge CLK, posedge RST) begin
 
+					//Resets
+					if(RST) begin
+						if(RESET_VALUE == "ZERO")
+							count	<= 0;
+						else
+							count	<= COUNT_TO;
+					end
+
 					//Main counter
-					if(KEEP) begin
+					else if(KEEP) begin
 					end
 					else if(UP) begin
 						count		<= count + 1'd1;
@@ -301,22 +309,22 @@ module GP_COUNT8_ADV(input CLK, input RST, output reg OUT,
 							count	<= COUNT_TO;
 					end
 
-					//Resets
-					if(RST) begin
-						if(RESET_VALUE == "ZERO")
-							count	<= 0;
-						else
-							count	<= COUNT_TO;
-					end
-
 				end
 			end
 
 			"FALLING": begin
 				always @(posedge CLK, negedge RST) begin
 
+					//Resets
+					if(!RST) begin
+						if(RESET_VALUE == "ZERO")
+							count	<= 0;
+						else
+							count	<= COUNT_TO;
+					end
+
 					//Main counter
-					if(KEEP) begin
+					else if(KEEP) begin
 					end
 					else if(UP) begin
 						count		<= count + 1'd1;
@@ -330,14 +338,6 @@ module GP_COUNT8_ADV(input CLK, input RST, output reg OUT,
 							count	<= COUNT_TO;
 					end
 
-					//Resets
-					if(!RST) begin
-						if(RESET_VALUE == "ZERO")
-							count	<= 0;
-						else
-							count	<= COUNT_TO;
-					end
-
 				end
 			end
 

From 85303334396904edfa0d77852b77c64870468f79 Mon Sep 17 00:00:00 2001
From: Clifford Wolf <clifford@clifford.at>
Date: Wed, 30 Aug 2017 11:39:11 +0200
Subject: [PATCH 2/2] Add {get,set}_src_attribute() methods on
 RTLIL::AttrObject

---
 kernel/rtlil.cc | 16 ++++++++++++++++
 kernel/rtlil.h  |  4 ++++
 2 files changed, 20 insertions(+)

diff --git a/kernel/rtlil.cc b/kernel/rtlil.cc
index 4427303cc..f3522e30b 100644
--- a/kernel/rtlil.cc
+++ b/kernel/rtlil.cc
@@ -234,6 +234,22 @@ pool<string> RTLIL::AttrObject::get_strpool_attribute(RTLIL::IdString id) const
 	return data;
 }
 
+void RTLIL::AttrObject::set_src_attribute(const std::string &src)
+{
+	if (src.empty())
+		attributes.erase("\\src");
+	else
+		attributes["\\src"] = src;
+}
+
+std::string RTLIL::AttrObject::get_src_attribute() const
+{
+	std::string src;
+	if (attributes.count("\\src"))
+		src = attributes.at("\\src").decode_string();
+	return src;
+}
+
 bool RTLIL::Selection::selected_module(RTLIL::IdString mod_name) const
 {
 	if (full_selection)
diff --git a/kernel/rtlil.h b/kernel/rtlil.h
index be558932f..31f7f9d31 100644
--- a/kernel/rtlil.h
+++ b/kernel/rtlil.h
@@ -505,9 +505,13 @@ struct RTLIL::AttrObject
 
 	void set_bool_attribute(RTLIL::IdString id);
 	bool get_bool_attribute(RTLIL::IdString id) const;
+
 	void set_strpool_attribute(RTLIL::IdString id, const pool<string> &data);
 	void add_strpool_attribute(RTLIL::IdString id, const pool<string> &data);
 	pool<string> get_strpool_attribute(RTLIL::IdString id) const;
+
+	void set_src_attribute(const std::string &src);
+	std::string get_src_attribute() const;
 };
 
 struct RTLIL::SigChunk