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ecp5: Tweak delay prediction

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Signed-off-by: gatecat <gatecat@ds0.me>
This commit is contained in:
gatecat 2022-04-20 11:29:08 +01:00
parent b8f9f2daa2
commit a35c80cc10
1 changed files with 1 additions and 1 deletions
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2
ecp5/arch.cc
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@ -580,7 +580,7 @@ delay_t Arch::predictDelay(BelId src_bel, IdString src_pin, BelId dst_bel, IdStr
int dx = abs(driver_loc.x - sink_loc.x), dy = abs(driver_loc.y - sink_loc.y);
return (120 - 22 * args.speed) *
(6 + std::max(dx - 5, 0) + std::max(dy - 5, 0) + 2 * (std::min(dx, 5) + std::min(dy, 5)));
(3 + std::max(dx - 5, 0) + std::max(dy - 5, 0) + 2 * (std::min(dx, 5) + std::min(dy, 5)));
}
bool Arch::getBudgetOverride(const NetInfo *net_info, const PortRef &sink, delay_t &budget) const