diff options
Diffstat (limited to 'ice40/chipdb.py')
| -rw-r--r-- | ice40/chipdb.py | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/ice40/chipdb.py b/ice40/chipdb.py index cc7be01f..195c08ae 100644 --- a/ice40/chipdb.py +++ b/ice40/chipdb.py @@ -969,10 +969,15 @@ def add_bel_ec(ec): last_dsp_y = 23 else: assert False, "unknown DSP y " + str(y) - wire_signextin = add_wire(x, last_dsp_y, "dsp/signextout") - wire_signextout = add_wire(x, y, "dsp/signextout") - wire_accumci = add_wire(x, last_dsp_y, "dsp/accumco") - wire_accumco = add_wire(x, y, "dsp/accumco") + def add_if_new(x, y, name): + if (x, y, name) in wire_names: + return wire_names[(x, y, name)] + else: + return add_wire(x, y, name) + wire_signextin = add_if_new(x, last_dsp_y, "dsp/signextout") + wire_signextout = add_if_new(x, y, "dsp/signextout") + wire_accumci = add_if_new(x, last_dsp_y, "dsp/accumco") + wire_accumco = add_if_new(x, y, "dsp/accumco") add_bel_input(bel, wire_signextin, "SIGNEXTIN") add_bel_output(bel, wire_signextout, "SIGNEXTOUT") add_bel_input(bel, wire_accumci, "ACCUMCI") |