diff options
Diffstat (limited to 'techlibs/xilinx/synth_xilinx.cc')
-rw-r--r-- | techlibs/xilinx/synth_xilinx.cc | 31 |
1 files changed, 17 insertions, 14 deletions
diff --git a/techlibs/xilinx/synth_xilinx.cc b/techlibs/xilinx/synth_xilinx.cc index 4069094a6..00849ad00 100644 --- a/techlibs/xilinx/synth_xilinx.cc +++ b/techlibs/xilinx/synth_xilinx.cc @@ -67,13 +67,13 @@ struct SynthXilinxPass : public ScriptPass log(" generate an output netlist suitable for ISE (enables -iopad)\n"); log("\n"); log(" -nobram\n"); - log(" disable inference of block rams\n"); + log(" do not use block RAM cells in output netlist\n"); log("\n"); - log(" -nodram\n"); - log(" disable inference of distributed rams\n"); + log(" -nolutram\n"); + log(" do not use distributed RAM cells in output netlist\n"); log("\n"); log(" -nosrl\n"); - log(" disable inference of shift registers\n"); + log(" do not use distributed SRL cells in output netlist\n"); log("\n"); log(" -nocarry\n"); log(" do not use XORCY/MUXCY/CARRY4 cells in output netlist\n"); @@ -116,7 +116,7 @@ struct SynthXilinxPass : public ScriptPass } std::string top_opt, edif_file, blif_file, family; - bool flatten, retime, vpr, ise, iopad, noiopad, noclkbuf, nobram, nodram, nosrl, nocarry, nowidelut, abc9; + bool flatten, retime, vpr, ise, iopad, noiopad, noclkbuf, nobram, nolutram, nosrl, nocarry, nowidelut, abc9; int widemux; void clear_flags() YS_OVERRIDE @@ -134,7 +134,7 @@ struct SynthXilinxPass : public ScriptPass noclkbuf = false; nocarry = false; nobram = false; - nodram = false; + nolutram = false; nosrl = false; nocarry = false; nowidelut = false; @@ -218,8 +218,8 @@ struct SynthXilinxPass : public ScriptPass nobram = true; continue; } - if (args[argidx] == "-nodram") { - nodram = true; + if (args[argidx] == "-nolutram" || /*deprecated alias*/ args[argidx] == "-nodram") { + nolutram = true; continue; } if (args[argidx] == "-nosrl") { @@ -316,7 +316,7 @@ struct SynthXilinxPass : public ScriptPass run("opt_clean"); } - if (check_label("bram", "(skip if '-nobram')")) { + if (check_label("map_bram", "(skip if '-nobram')")) { if (help_mode) { run("memory_bram -rules +/xilinx/{family}_brams.txt"); run("techmap -map +/xilinx/{family}_brams_map.v"); @@ -333,20 +333,23 @@ struct SynthXilinxPass : public ScriptPass } } - if (check_label("dram", "(skip if '-nodram')")) { - if (!nodram || help_mode) { - run("memory_bram -rules +/xilinx/drams.txt"); - run("techmap -map +/xilinx/drams_map.v"); + if (check_label("map_lutram", "(skip if '-nolutram')")) { + if (!nolutram || help_mode) { + run("memory_bram -rules +/xilinx/lutrams.txt"); + run("techmap -map +/xilinx/lutrams_map.v"); } } - if (check_label("fine")) { + if (check_label("map_ffram")) { if (widemux > 0) run("opt -fast -mux_bool -undriven -fine"); // Necessary to omit -mux_undef otherwise muxcover // performs less efficiently else run("opt -fast -full"); run("memory_map"); + } + + if (check_label("fine")) { run("dffsr2dff"); run("dff2dffe"); if (help_mode) { |