diff options
| -rw-r--r-- | ecp5/arch.cc | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/ecp5/arch.cc b/ecp5/arch.cc index 1abb8af0..ad207d14 100644 --- a/ecp5/arch.cc +++ b/ecp5/arch.cc @@ -454,14 +454,24 @@ delay_t Arch::estimateDelay(WireId src, WireId dst) const delay_t Arch::predictDelay(const NetInfo *net_info, const PortRef &sink) const { const auto &driver = net_info->driver; - if (driver.port == id_FCO && sink.port == id_FCI) + if ((driver.port == id_FCO && sink.port == id_FCI) || sink.port == id_FXA || sink.port == id_FXB) return 0; auto driver_loc = getBelLocation(driver.cell->bel); auto sink_loc = getBelLocation(sink.cell->bel); return (110 - 10 * args.speed) + (200 - 20 * args.speed) * (abs(driver_loc.x - sink_loc.x) + abs(driver_loc.y - sink_loc.y)); } -bool Arch::getBudgetOverride(const NetInfo *net_info, const PortRef &sink, delay_t &budget) const { return false; } +bool Arch::getBudgetOverride(const NetInfo *net_info, const PortRef &sink, delay_t &budget) const { + if (net_info->driver.port == id_FCO && sink.port == id_FCI) { + return true; + budget = 0; + } else if (sink.port == id_FXA || sink.port == id_FXB) { + return true; + budget = 0; + } else { + return false; + } +} // ----------------------------------------------------------------------- |