Added "show -signed"

diff --git a/passes/cmds/show.cc b/passes/cmds/show.cc
index c15feb7b55539febc0be359728ea2affdb6d8c94..4f6b811bcb5d21a663832e8f5ee6ab5f9f209224 100644 (file)
--- a/passes/cmds/show.cc
+++ b/passes/cmds/show.cc
@@ -45,6 +45,7 @@ struct ShowWorker
        RTLIL::Module *module;
        uint32_t currentColor;
        bool genWidthLabels;
+       bool genSignedLabels;
        bool stretchIO;
        bool enumerateIds;
        bool abbreviateIds;
@@ -354,7 +355,9 @@ struct ShowWorker
                        std::string label_string = "{{";
 
                        for (auto &p : in_ports)
-                               label_string += stringf("<p%d> %s|", id2num(p), escape(p.str()));
+                               label_string += stringf("<p%d> %s%s|", id2num(p), escape(p.str()),
+                                               genSignedLabels && it.second->hasParam(p.str() + "_SIGNED") &&
+                                               it.second->getParam(p.str() + "_SIGNED").as_bool() ? "*" : "");
                        if (label_string[label_string.size()-1] == '|')
                                label_string = label_string.substr(0, label_string.size()-1);
 
@@ -487,12 +490,12 @@ struct ShowWorker
                fprintf(f, "}\n");
        }
 
-       ShowWorker(FILE *f, RTLIL::Design *design, std::vector<RTLIL::Design*> &libs, uint32_t colorSeed,
-                       bool genWidthLabels, bool stretchIO, bool enumerateIds, bool abbreviateIds, bool notitle,
+       ShowWorker(FILE *f, RTLIL::Design *design, std::vector<RTLIL::Design*> &libs, uint32_t colorSeed, bool genWidthLabels,
+                       bool genSignedLabels, bool stretchIO, bool enumerateIds, bool abbreviateIds, bool notitle,
                        const std::vector<std::pair<std::string, RTLIL::Selection>> &color_selections,
                        const std::vector<std::pair<std::string, RTLIL::Selection>> &label_selections) :
                        f(f), design(design), currentColor(colorSeed), genWidthLabels(genWidthLabels),
-                       stretchIO(stretchIO), enumerateIds(enumerateIds), abbreviateIds(abbreviateIds),
+                       genSignedLabels(genSignedLabels), stretchIO(stretchIO), enumerateIds(enumerateIds), abbreviateIds(abbreviateIds),
                        notitle(notitle), color_selections(color_selections), label_selections(label_selections)
        {
                ct.setup_internals();
@@ -572,6 +575,10 @@ struct ShowPass : public Pass {
                log("    -width\n");
                log("        annotate busses with a label indicating the width of the bus.\n");
                log("\n");
+               log("    -signed\n");
+               log("        mark ports (A, B) that are declarted as signed (using the [AB]_SIGNED\n");
+               log("        cell parameter) with an asterisk next to the port name.\n");
+               log("\n");
                log("    -stretch\n");
                log("        stretch the graph so all inputs are on the left side and all outputs\n");
                log("        (including inout ports) are on the right side.\n");
@@ -610,6 +617,7 @@ struct ShowPass : public Pass {
                std::vector<RTLIL::Design*> libs;
                uint32_t colorSeed = 0;
                bool flag_width = false;
+               bool flag_signed = false;
                bool flag_stretch = false;
                bool flag_pause = false;
                bool flag_enum = false;
@@ -664,6 +672,10 @@ struct ShowPass : public Pass {
                                flag_width= true;
                                continue;
                        }
+                       if (arg == "-signed") {
+                               flag_signed= true;
+                               continue;
+                       }
                        if (arg == "-stretch") {
                                flag_stretch= true;
                                continue;
@@ -727,7 +739,7 @@ struct ShowPass : public Pass {
                                delete lib;
                        log_cmd_error("Can't open dot file `%s' for writing.\n", dot_file.c_str());
                }
-               ShowWorker worker(f, design, libs, colorSeed, flag_width, flag_stretch, flag_enum, flag_abbeviate, flag_notitle, color_selections, label_selections);
+               ShowWorker worker(f, design, libs, colorSeed, flag_width, flag_signed, flag_stretch, flag_enum, flag_abbeviate, flag_notitle, color_selections, label_selections);
                fclose(f);
 
                for (auto lib : libs)