From 0f38008ed34e36e798f521b4b6d4fea89ae31a3b Mon Sep 17 00:00:00 2001
From: Clifford Wolf <clifford@clifford.at>
Date: Sat, 27 Jul 2013 14:27:51 +0200
Subject: Added "design" command (-reset, -save, -load)

---
 passes/cmds/Makefile.inc |   1 +
 passes/cmds/design.cc    | 128 +++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 129 insertions(+)
 create mode 100644 passes/cmds/design.cc

(limited to 'passes/cmds')

diff --git a/passes/cmds/Makefile.inc b/passes/cmds/Makefile.inc
index 75bfa5b8b..9dc85b1ef 100644
--- a/passes/cmds/Makefile.inc
+++ b/passes/cmds/Makefile.inc
@@ -1,4 +1,5 @@
 
+OBJS += passes/cmds/design.o
 OBJS += passes/cmds/select.o
 OBJS += passes/cmds/show.o
 OBJS += passes/cmds/rename.o
diff --git a/passes/cmds/design.cc b/passes/cmds/design.cc
new file mode 100644
index 000000000..2f599adb0
--- /dev/null
+++ b/passes/cmds/design.cc
@@ -0,0 +1,128 @@
+/*
+ *  yosys -- Yosys Open SYnthesis Suite
+ *
+ *  Copyright (C) 2012  Clifford Wolf <clifford@clifford.at>
+ *  
+ *  Permission to use, copy, modify, and/or distribute this software for any
+ *  purpose with or without fee is hereby granted, provided that the above
+ *  copyright notice and this permission notice appear in all copies.
+ *  
+ *  THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ *  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ *  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ *  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ *  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ *  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ *  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ */
+
+#include "kernel/register.h"
+#include "kernel/celltypes.h"
+#include "kernel/rtlil.h"
+#include "kernel/log.h"
+
+struct DesignPass : public Pass {
+	DesignPass() : Pass("design", "save, restore and reset current design") { }
+	std::map<std::string, RTLIL::Design*> saved_designs;
+	virtual ~DesignPass() {
+		for (auto &it : saved_designs)
+			delete it.second;
+		saved_designs.clear();
+	}
+	virtual void help()
+	{
+		//   |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|
+		log("\n");
+		log("    design -reset\n");
+		log("\n");
+		log("Clear the current design.\n");
+		log("\n");
+		log("\n");
+		log("    design -save <name>\n");
+		log("\n");
+		log("Save the current design under the given name.\n");
+		log("\n");
+		log("\n");
+		log("    design -load <name>\n");
+		log("\n");
+		log("Reset the current design and load the design previously saved under the given\n");
+		log("name.\n");
+		log("\n");
+	}
+	virtual void execute(std::vector<std::string> args, RTLIL::Design *design)
+	{
+		bool got_mode = false;
+		bool reset_mode = false;
+		std::string save_name, load_name;
+
+		size_t argidx;
+		for (argidx = 1; argidx < args.size(); argidx++)
+		{
+			std::string arg = args[argidx];
+			if (!got_mode && arg == "-reset") {
+				got_mode = true;
+				reset_mode = true;
+				continue;
+			}
+			if (arg == "-save" && argidx+1 < args.size()) {
+				got_mode = true;
+				save_name = args[++argidx];
+				continue;
+			}
+			if (arg == "-load" && argidx+1 < args.size()) {
+				got_mode = true;
+				load_name = args[++argidx];
+				if (saved_designs.count(load_name) == 0)
+					log_cmd_error("No saved design '%s' found!\n", load_name.c_str());
+				continue;
+			}
+		}
+		extra_args(args, argidx, design, false);
+
+		if (!got_mode)
+			cmd_error(args, argidx, "Missing mode argument (-reset, -save, or -load).");
+
+		if (reset_mode || !load_name.empty())
+		{
+			for (auto &it : design->modules)
+				delete it.second;
+			design->modules.clear();
+
+			design->selection_stack.clear();
+			design->selection_vars.clear();
+			design->selected_active_module.clear();
+
+			design->selection_stack.push_back(RTLIL::Selection());
+		}
+
+		if (!save_name.empty())
+		{
+			RTLIL::Design *design_copy = new RTLIL::Design;
+
+			for (auto &it : design->modules)
+				design_copy->modules[it.first] = it.second->clone();
+
+			design_copy->selection_stack = design->selection_stack;
+			design_copy->selection_vars = design->selection_vars;
+			design_copy->selected_active_module = design->selected_active_module;
+
+			if (saved_designs.count(save_name))
+				delete saved_designs.at(save_name);
+			saved_designs[save_name] = design_copy;
+		}
+
+		if (!load_name.empty())
+		{
+			RTLIL::Design *saved_design = saved_designs.at(load_name);
+
+			for (auto &it : saved_design->modules)
+				design->modules[it.first] = it.second->clone();
+
+			design->selection_stack = saved_design->selection_stack;
+			design->selection_vars = saved_design->selection_vars;
+			design->selected_active_module = saved_design->selected_active_module;
+		}
+	}
+} DesignPass;
+ 
-- 
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