diff options
Diffstat (limited to 'ecp5/arch.cc')
| -rw-r--r-- | ecp5/arch.cc | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/ecp5/arch.cc b/ecp5/arch.cc index 0d6b6a55..1abb8af0 100644 --- a/ecp5/arch.cc +++ b/ecp5/arch.cc @@ -448,16 +448,17 @@ delay_t Arch::estimateDelay(WireId src, WireId dst) const auto src_loc = est_location(src), dst_loc = est_location(dst); - return (240 - 20 * args.speed) * (abs(src_loc.first - dst_loc.first) + abs(src_loc.second - dst_loc.second)); + return (110 - 10 * args.speed) + (200 - 20 * args.speed) * (abs(src_loc.first - dst_loc.first) + abs(src_loc.second - dst_loc.second)); } 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) + return 0; auto driver_loc = getBelLocation(driver.cell->bel); auto sink_loc = getBelLocation(sink.cell->bel); - - return (240 - 20 * args.speed) * (abs(driver_loc.x - sink_loc.x) + abs(driver_loc.y - sink_loc.y)); + 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; } |