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ecp5: Fix delay heuristic

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Signed-off-by: David Shah <davey1576@gmail.com>
This commit is contained in:
David Shah 2018-08-19 17:10:55 +01:00
parent ec94848774
commit 1b3a201a54
1 changed files with 2 additions and 2 deletions
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4
ecp5/arch.cc
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@ -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