Added "chparam" command

diff --git a/passes/cmds/setattr.cc b/passes/cmds/setattr.cc
index 9a6d8a0389fe5b15d8ca52b8470590d10a8d26a6..2958d9d82a97259d3ac96b73f15c81fee2612967 100644 (file)
--- a/passes/cmds/setattr.cc
+++ b/passes/cmds/setattr.cc
@@ -181,4 +181,61 @@ struct SetparamPass : public Pass {
        }
 } SetparamPass;
  
+struct ChparamPass : public Pass {
+       ChparamPass() : Pass("chparam", "re-evaluate modules with new parameters") { }
+       virtual void help()
+       {
+               //   |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|
+               log("\n");
+               log("    chparam [ -set name value ]... [selection]\n");
+               log("\n");
+               log("Re-evaluate the selected modules with new parameters. String values must be\n");
+               log("passed in double quotes (\").\n");
+               log("\n");
+       }
+       virtual void execute(std::vector<std::string> args, RTLIL::Design *design)
+       {
+               std::vector<setunset_t> setunset_list;
+               dict<RTLIL::IdString, RTLIL::Const> new_parameters;
+
+               size_t argidx;
+               for (argidx = 1; argidx < args.size(); argidx++)
+               {
+                       std::string arg = args[argidx];
+                       if (arg == "-set" && argidx+2 < args.size()) {
+                               argidx += 2;
+                               setunset_t new_param(args[argidx-1], args, argidx);
+                               new_parameters[new_param.name] = new_param.value;
+                               argidx--;
+                               continue;
+                       }
+                       break;
+               }
+               extra_args(args, argidx, design);
+
+               pool<IdString> modnames, old_modnames;
+               for (auto module : design->selected_modules()) {
+                       if (design->selected_whole_module(module))
+                               modnames.insert(module->name);
+                       else
+                               log_warning("Ignoring partially selecedted module %s.\n", log_id(module));
+                       old_modnames.insert(module->name);
+               }
+               modnames.sort();
+
+               for (auto modname : modnames) {
+                       Module *module = design->module(modname);
+                       Module *new_module = design->module(module->derive(design, new_parameters));
+                       if (module != new_module) {
+                               Module *m = new_module->clone();
+                               m->name = module->name;
+                               design->remove(module);
+                               design->add(m);
+                       }
+                       if (old_modnames.count(new_module->name) == 0)
+                               design->remove(new_module);
+               }
+       }
+} ChparamPass;
+ 
 PRIVATE_NAMESPACE_END