From 2279b2a196aeaf16e853b09f2e00ad74e9c614ad Mon Sep 17 00:00:00 2001
From: Clifford Wolf <clifford@clifford.at>
Date: Wed, 20 Nov 2013 19:37:40 +0100
Subject: [PATCH] Added "add" command (only wires for now)
---
passes/cmds/Makefile.inc | 1 +
passes/cmds/add.cc | 154 +++++++++++++++++++++++++++++++++++++++
2 files changed, 155 insertions(+)
create mode 100644 passes/cmds/add.cc
diff --git a/passes/cmds/Makefile.inc b/passes/cmds/Makefile.inc
index 9dc85b1ef..d0c63496a 100644
--- a/passes/cmds/Makefile.inc
+++ b/passes/cmds/Makefile.inc
@@ -1,4 +1,5 @@
+OBJS += passes/cmds/add.o
OBJS += passes/cmds/design.o
OBJS += passes/cmds/select.o
OBJS += passes/cmds/show.o
diff --git a/passes/cmds/add.cc b/passes/cmds/add.cc
new file mode 100644
index 000000000..8e4783559
--- /dev/null
+++ b/passes/cmds/add.cc
@@ -0,0 +1,154 @@
+/*
+ * 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/rtlil.h"
+#include "kernel/log.h"
+
+static void add_wire(RTLIL::Design *design, RTLIL::Module *module, std::string name, int width, bool flag_input, bool flag_output, bool flag_global)
+{
+ name = RTLIL::escape_id(name);
+
+ if (module->count_id(name) != 0)
+ {
+ RTLIL::Wire *wire = NULL;
+
+ if (module->wires.count(name) > 0)
+ wire = module->wires.at(name);
+
+ if (wire != NULL && wire->width != width)
+ wire = NULL;
+
+ if (wire != NULL && wire->port_input != flag_input)
+ wire = NULL;
+
+ if (wire != NULL && wire->port_output != flag_output)
+ wire = NULL;
+
+ if (wire == NULL)
+ log_cmd_error("Found incompatible object with same name in module %s!\n", module->name.c_str());
+ log("Skipping module %s as it already has such an object.\n", module->name.c_str());
+ return;
+ }
+
+ RTLIL::Wire *wire = new RTLIL::Wire;
+ wire->name = name;
+ wire->width = width;
+ wire->port_input = flag_input;
+ wire->port_output = flag_output;
+ module->add(wire);
+
+ if (flag_input || flag_output) {
+ wire->port_id = module->wires.size();
+ module->fixup_ports();
+ }
+
+ log("Added wire %s to module %s.\n", name.c_str(), module->name.c_str());
+
+ if (!flag_global)
+ return;
+
+ for (auto &it : module->cells)
+ {
+ if (design->modules.count(it.second->type) == 0)
+ continue;
+
+ RTLIL::Module *mod = design->modules.at(it.second->type);
+ if (!design->selected_whole_module(mod->name))
+ continue;
+ if (mod->get_bool_attribute("\\placeholder"))
+ continue;
+ if (it.second->connections.count(name) > 0)
+ continue;
+
+ it.second->connections[name] = wire;
+ log("Added connection %s to cell %s.%s (%s).\n", name.c_str(), module->name.c_str(), it.first.c_str(), it.second->type.c_str());
+ }
+}
+
+struct AddPass : public Pass {
+ AddPass() : Pass("add", "add objects to the design") { }
+ virtual void help()
+ {
+ // |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|
+ log("\n");
+ log(" add <command> [selection]\n");
+ log("\n");
+ log("This command adds objects to the design. It operates on all fully selected\n");
+ log("modules. So e.g. 'add -wire foo' will add a wire foo to all selected modules.\n");
+ log("\n");
+ log("\n");
+ log(" add {-wire|-input|-inout|-output} <name> <width> [selection]\n");
+ log("\n");
+ log("Add a wire (input, inout, output port) with the given name and width. The\n");
+ log("command will fail if the object exists already and has different properties\n");
+ log("than the object to be created.\n");
+ log("\n");
+ log("\n");
+ log(" add -global_input <name> <width> [selection]\n");
+ log("\n");
+ log("Like 'add -input', but also connect the signal between instances of the\n");
+ log("selected modules.\n");
+ log("\n");
+ }
+ virtual void execute(std::vector<std::string> args, RTLIL::Design *design)
+ {
+ std::string command;
+ std::string arg_name;
+ bool arg_flag_input = false;
+ bool arg_flag_output = false;
+ bool arg_flag_global = false;
+ int arg_width = 0;
+
+ size_t argidx;
+ for (argidx = 1; argidx < args.size(); argidx++)
+ {
+ std::string arg = args[argidx];
+ if (arg == "-wire" || arg == "-input" || arg == "-inout" || arg == "-output" || arg == "-global_input") {
+ if (argidx+2 >= args.size())
+ break;
+ command = "wire";
+ if (arg == "-input" || arg == "-inout" || arg == "-global_input")
+ arg_flag_input = true;
+ if (arg == "-output" || arg == "-inout")
+ arg_flag_output = true;
+ if (arg == "-global_input")
+ arg_flag_global = true;
+ arg_name = args[++argidx];
+ arg_width = atoi(args[++argidx].c_str());
+ continue;
+ }
+ break;
+ }
+ extra_args(args, argidx, design);
+
+ for (auto &mod : design->modules)
+ {
+ RTLIL::Module *module = mod.second;
+ if (!design->selected_whole_module(module->name))
+ continue;
+ if (module->get_bool_attribute("\\placeholder"))
+ continue;
+
+ if (command == "wire")
+ add_wire(design, module, arg_name, arg_width, arg_flag_input, arg_flag_output, arg_flag_global);
+ }
+ }
+} AddPass;
+