diff options
Diffstat (limited to 'techlibs/ice40/synth_ice40.cc')
| -rw-r--r-- | techlibs/ice40/synth_ice40.cc | 21 |
1 files changed, 9 insertions, 12 deletions
diff --git a/techlibs/ice40/synth_ice40.cc b/techlibs/ice40/synth_ice40.cc index 9dd5d81f7..0474e76e9 100644 --- a/techlibs/ice40/synth_ice40.cc +++ b/techlibs/ice40/synth_ice40.cc @@ -67,9 +67,6 @@ struct SynthIce40Pass : public ScriptPass log(" -retime\n"); log(" run 'abc' with -dff option\n"); log("\n"); - log(" -relut\n"); - log(" combine LUTs after synthesis\n"); - log("\n"); log(" -nocarry\n"); log(" do not use SB_CARRY cells in output netlist\n"); log("\n"); @@ -78,7 +75,7 @@ struct SynthIce40Pass : public ScriptPass log("\n"); log(" -dffe_min_ce_use <min_ce_use>\n"); log(" do not use SB_DFFE* cells if the resulting CE line would go to less\n"); - log(" than min_ce_use SB_DFFE*in output netlist\n"); + log(" than min_ce_use SB_DFFE* in output netlist\n"); log("\n"); log(" -nobram\n"); log(" do not use SB_RAM40_4K* cells in output netlist\n"); @@ -106,7 +103,7 @@ struct SynthIce40Pass : public ScriptPass } string top_opt, blif_file, edif_file, json_file, abc, device_opt; - bool nocarry, nodffe, nobram, dsp, flatten, retime, relut, noabc, abc2, vpr; + bool nocarry, nodffe, nobram, dsp, flatten, retime, noabc, abc2, vpr; int min_ce_use; void clear_flags() YS_OVERRIDE @@ -122,7 +119,6 @@ struct SynthIce40Pass : public ScriptPass dsp = false; flatten = true; retime = false; - relut = false; noabc = false; abc2 = false; vpr = false; @@ -175,7 +171,7 @@ struct SynthIce40Pass : public ScriptPass continue; } if (args[argidx] == "-relut") { - relut = true; + // removed, opt_lut is always run continue; } if (args[argidx] == "-nocarry") { @@ -227,6 +223,9 @@ struct SynthIce40Pass : public ScriptPass if (device_opt != "hx" && device_opt != "lp" && device_opt !="u") log_cmd_error("Invalid or no device specified: '%s'\n", device_opt.c_str()); + if (abc == "abc9" && retime) + log_cmd_error("-retime option not currently compatible with -abc9!\n"); + log_header(design, "Executing SYNTH_ICE40 pass.\n"); log_push(); @@ -296,7 +295,7 @@ struct SynthIce40Pass : public ScriptPass run("techmap"); else run("techmap -map +/techmap.v -map +/ice40/arith_map.v"); - if ((retime || help_mode) && abc != "abc9") + if (retime || help_mode) run(abc + " -dff", "(only if -retime)"); run("ice40_opt"); } @@ -344,10 +343,8 @@ struct SynthIce40Pass : public ScriptPass run(abc + " -dress -lut 4", "(skip if -noabc)"); } run("clean"); - if (relut || help_mode) { - run("ice40_unlut", " (only if -relut)"); - run("opt_lut -dlogic SB_CARRY:I0=1:I1=2:CI=3", "(only if -relut)"); - } + run("ice40_unlut"); + run("opt_lut -dlogic SB_CARRY:I0=1:I1=2:CI=3"); } if (check_label("map_cells")) |