Tidy up synth_ice40, only restrict DSP_B_MINWIDTH=2

diff --git a/techlibs/ice40/synth_ice40.cc b/techlibs/ice40/synth_ice40.cc
index 55aa72aa7143a918d865f9a561dec1a07a59df76..284bc90d08afa587f7546c1812b7d848f1adae45 100644 (file)
--- a/techlibs/ice40/synth_ice40.cc
+++ b/techlibs/ice40/synth_ice40.cc
@@ -273,7 +273,9 @@ struct SynthIce40Pass : public ScriptPass
                        run("opt_expr");
                        run("opt_clean");
                        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=$__MUL16X16", "(if -dsp)");
+                               run("techmap -map +/mul2dsp.v -map +/ice40/dsp_map.v -D DSP_A_MAXWIDTH=16 -D DSP_B_MAXWIDTH=16 "
+                                               "-D DSP_A_MINWIDTH=2 -D DSP_Y_MINWIDTH=11 "
+                                               "-D DSP_NAME=$__MUL16X16", "(if -dsp)");
                                run("opt_expr -fine", "               (if -dsp)");
                                run("wreduce", "                      (if -dsp)");
                                run("ice40_dsp", "                    (if -dsp)");