diff options
Diffstat (limited to 'ice40/arch.cc')
| -rw-r--r-- | ice40/arch.cc | 43 |
1 files changed, 36 insertions, 7 deletions
diff --git a/ice40/arch.cc b/ice40/arch.cc index 8162098c..fd68e972 100644 --- a/ice40/arch.cc +++ b/ice40/arch.cc @@ -311,9 +311,23 @@ PortType Arch::getBelPinType(BelId bel, PortPin pin) const int num_bel_wires = chip_info->bel_data[bel.index].num_bel_wires; const BelWirePOD *bel_wires = chip_info->bel_data[bel.index].bel_wires.get(); - for (int i = 0; i < num_bel_wires; i++) - if (bel_wires[i].port == pin) - return PortType(bel_wires[i].type); + if (num_bel_wires < 7) { + for (int i = 0; i < num_bel_wires; i++) { + if (bel_wires[i].port == pin) + return PortType(bel_wires[i].type); + } + } else { + int b = 0, e = num_bel_wires-1; + while (b <= e) { + int i = (b+e) / 2; + if (bel_wires[i].port == pin) + return PortType(bel_wires[i].type); + if (bel_wires[i].port > pin) + e = i-1; + else + b = i+1; + } + } return PORT_INOUT; } @@ -327,10 +341,25 @@ WireId Arch::getBelPinWire(BelId bel, PortPin pin) const int num_bel_wires = chip_info->bel_data[bel.index].num_bel_wires; const BelWirePOD *bel_wires = chip_info->bel_data[bel.index].bel_wires.get(); - for (int i = 0; i < num_bel_wires; i++) { - if (bel_wires[i].port == pin) { - ret.index = bel_wires[i].wire_index; - break; + if (num_bel_wires < 7) { + for (int i = 0; i < num_bel_wires; i++) { + if (bel_wires[i].port == pin) { + ret.index = bel_wires[i].wire_index; + break; + } + } + } else { + int b = 0, e = num_bel_wires-1; + while (b <= e) { + int i = (b+e) / 2; + if (bel_wires[i].port == pin) { + ret.index = bel_wires[i].wire_index; + break; + } + if (bel_wires[i].port > pin) + e = i-1; + else + b = i+1; } } |