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Add predictDelay Arch API

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Signed-off-by: Clifford Wolf <clifford@clifford.at>
This commit is contained in:
Clifford Wolf
2018-07-30 15:35:40 +02:00
parent b5f90d3814
commit 0daffec2a0
7 changed files with 38 additions and 5 deletions
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5
ecp5/arch.cc
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@@ -413,6 +413,11 @@ delay_t Arch::estimateDelay(WireId src, WireId dst) const
return 200 * (abs(src.location.x - dst.location.x) + abs(src.location.y - dst.location.y));
}
delay_t Arch::predictDelay(WireId src, WireId dst) const
{
return 200 * (abs(src.location.x - dst.location.x) + abs(src.location.y - dst.location.y));
}
// -----------------------------------------------------------------------
bool Arch::place() { return placer1(getCtx()); }

1
ecp5/arch.h
View File

@@ -776,6 +776,7 @@ struct Arch : BaseCtx
// -------------------------------------------------
delay_t estimateDelay(WireId src, WireId dst) const;
delay_t predictDelay(WireId src, WireId dst) const;
delay_t getDelayEpsilon() const { return 20; }
delay_t getRipupDelayPenalty() const { return 200; }
float getDelayNS(delay_t v) const { return v * 0.001; }