From 9500b564aca78aa826d4bbf034001693bad9edff Mon Sep 17 00:00:00 2001 From: Clifford Wolf Date: Tue, 9 Jun 2015 20:28:17 +0200 Subject: synth_ice40 now flattens by default --- techlibs/ice40/synth_ice40.cc | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/techlibs/ice40/synth_ice40.cc b/techlibs/ice40/synth_ice40.cc index e1cfa977b..236c27a54 100644 --- a/techlibs/ice40/synth_ice40.cc +++ b/techlibs/ice40/synth_ice40.cc @@ -60,8 +60,8 @@ struct SynthIce40Pass : public Pass { log(" from label is synonymous to 'begin', and empty to label is\n"); log(" synonymous to the end of the command list.\n"); log("\n"); - log(" -flatten\n"); - log(" flatten design before synthesis\n"); + log(" -noflatten\n"); + log(" do not flatten design before synthesis\n"); log("\n"); log(" -retime\n"); log(" run 'abc' with -dff option\n"); @@ -79,7 +79,7 @@ struct SynthIce40Pass : public Pass { log(" read_verilog -lib +/ice40/cells_sim.v\n"); log(" hierarchy -check -top \n"); log("\n"); - log(" flatten: (only if -flatten)\n"); + log(" flatten: (unless -noflatten)\n"); log(" proc\n"); log(" flatten\n"); log("\n"); @@ -133,7 +133,7 @@ struct SynthIce40Pass : public Pass { std::string blif_file, edif_file; bool nocarry = false; bool nobram = false; - bool flatten = false; + bool flatten = true; bool retime = false; size_t argidx; @@ -163,6 +163,10 @@ struct SynthIce40Pass : public Pass { flatten = true; continue; } + if (args[argidx] == "-noflatten") { + flatten = false; + continue; + } if (args[argidx] == "-retime") { retime = true; continue; -- cgit v1.2.3