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| author | David Shah <davey1576@gmail.com> | 2018-08-19 17:10:55 +0100 |
|---|---|---|
| committer | David Shah <davey1576@gmail.com> | 2018-08-19 17:10:55 +0100 |
| commit | 1b3a201a54d36085a0675ebaebda523645ad45b3 (patch) | |
| tree | 1e66bc0c69dad417db49191de5f76263acb40b87 /ecp5 | |
| parent | ec948487741d982707122f96d127af1f3c95ee66 (diff) | |
| download | nextpnr-1b3a201a54d36085a0675ebaebda523645ad45b3.tar.gz nextpnr-1b3a201a54d36085a0675ebaebda523645ad45b3.tar.bz2 nextpnr-1b3a201a54d36085a0675ebaebda523645ad45b3.zip | |
ecp5: Fix delay heuristic
Signed-off-by: David Shah <davey1576@gmail.com>
Diffstat (limited to 'ecp5')
| -rw-r--r-- | ecp5/arch.cc | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/ecp5/arch.cc b/ecp5/arch.cc index f9853ae2..57ba480d 100644 --- a/ecp5/arch.cc +++ b/ecp5/arch.cc @@ -372,7 +372,7 @@ BelId Arch::getBelByLocation(Loc loc) const delay_t Arch::estimateDelay(WireId src, WireId dst) const { - return 50 * (abs(src.location.x - dst.location.x) + abs(src.location.y - dst.location.y)); + return 100 * (abs(src.location.x - dst.location.x) + abs(src.location.y - dst.location.y)); } delay_t Arch::predictDelay(const NetInfo *net_info, const PortRef &sink) const @@ -381,7 +381,7 @@ delay_t Arch::predictDelay(const NetInfo *net_info, const PortRef &sink) const auto driver_loc = getBelLocation(driver.cell->bel); auto sink_loc = getBelLocation(sink.cell->bel); - return 50 * (abs(driver_loc.x - sink_loc.x) + abs(driver_loc.y - sink_loc.y)); + return 100 * (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 |