diff options
Diffstat (limited to 'passes/memory')
| -rw-r--r-- | passes/memory/memory.cc | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/passes/memory/memory.cc b/passes/memory/memory.cc index 866efae7..7b2b89b2 100644 --- 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"); |