Added "memory -nordff"

diff --git a/passes/memory/memory.cc b/passes/memory/memory.cc
index 866efae7758d8572e253904676934e410d8f1d71..7b2b89b2b1a8f8b5785f0a955eb82babce640d66 100644 (file)
--- a/passes/memory/memory.cc
+++ b/passes/memory/memory.cc
@@ -31,7 +31,7 @@ struct MemoryPass : public Pass {
        {
                //   |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|
                log("\n");
-               log("    memory [-nomap] [-bram <bram_rules>] [selection]\n");
+               log("    memory [-nomap] [-nordff] [-bram <bram_rules>] [selection]\n");
                log("\n");
                log("This pass calls all the other memory_* passes in a useful order:\n");
                log("\n");
@@ -43,6 +43,8 @@ struct MemoryPass : public Pass {
                log("    memory_bram -rules <bram_rules>     (when called with -bram)\n");
                log("    memory_map                          (skipped if called with -nomap)\n");
                log("\n");
+               log("when called with -nordff, memory_dff will be called with -wr_only.\n");
+               log("\n");
                log("This converts memories to word-wide DFFs and address decoders\n");
                log("or multiport memory blocks if called with the -nomap option.\n");
                log("\n");
@@ -50,6 +52,7 @@ struct MemoryPass : public Pass {
        virtual void execute(std::vector<std::string> args, RTLIL::Design *design)
        {
                bool flag_nomap = false;
+               bool flag_nordff = false;
                string memory_bram_opts;
 
                log_header("Executing MEMORY pass.\n");
@@ -61,6 +64,10 @@ struct MemoryPass : public Pass {
                                flag_nomap = true;
                                continue;
                        }
+                       if (args[argidx] == "-nordff") {
+                               flag_nordff = true;
+                               continue;
+                       }
                        if (argidx+1 < args.size() && args[argidx] == "-bram") {
                                memory_bram_opts += " -rules " + args[++argidx];
                                continue;
@@ -69,7 +76,7 @@ struct MemoryPass : public Pass {
                }
                extra_args(args, argidx, design);
 
-               Pass::call(design, "memory_dff");
+               Pass::call(design, flag_nordff ? "memory_dff -wr_only" : "memory_dff");
                Pass::call(design, "opt_clean");
                Pass::call(design, "memory_share");
                Pass::call(design, "opt_clean");