diff options
Diffstat (limited to 'techlibs/ice40/synth_ice40.cc')
| -rw-r--r-- | techlibs/ice40/synth_ice40.cc | 23 |
1 files changed, 20 insertions, 3 deletions
diff --git a/techlibs/ice40/synth_ice40.cc b/techlibs/ice40/synth_ice40.cc index c6de81bd9..841f10244 100644 --- a/techlibs/ice40/synth_ice40.cc +++ b/techlibs/ice40/synth_ice40.cc @@ -238,7 +238,14 @@ struct SynthIce40Pass : public ScriptPass { if (check_label("begin")) { - run("read_verilog -icells -lib +/ice40/cells_sim.v"); + std::string define; + if (device_opt == "lp") + define = "-D ICE40_LP"; + else if (device_opt == "u") + define = "-D ICE40_U"; + else + define = "-D ICE40_HX"; + run("read_verilog -icells " + define + " -lib +/ice40/cells_sim.v"); run(stringf("hierarchy -check %s", help_mode ? "-top <top>" : top_opt.c_str())); run("proc"); } @@ -265,8 +272,18 @@ struct SynthIce40Pass : public ScriptPass run("techmap -map +/cmp2lut.v -D LUT_WIDTH=4"); run("opt_expr"); run("opt_clean"); - if (help_mode || dsp) - run("ice40_dsp", "(if -dsp)"); + if (help_mode || dsp) { + run("techmap -map +/mul2dsp.v -map +/ice40/dsp_map.v -D DSP_A_MAXWIDTH=16 -D DSP_B_MAXWIDTH=16 " + "-D DSP_A_MINWIDTH=2 -D DSP_B_MINWIDTH=2 -D DSP_Y_MINWIDTH=11 " + "-D DSP_NAME=$__MUL16X16", "(if -dsp)"); + run("select a:mul2dsp", " (if -dsp)"); + run("setattr -unset mul2dsp", " (if -dsp)"); + run("opt_expr -fine", " (if -dsp)"); + run("wreduce", " (if -dsp)"); + run("select -clear", " (if -dsp)"); + run("ice40_dsp", " (if -dsp)"); + run("chtype -set $mul t:$__soft_mul", "(if -dsp)"); + } run("alumacc"); run("opt"); run("fsm"); |