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| author | Eddie Hung <e.hung@imperial.ac.uk> | 2018-07-21 13:05:09 -0700 |
|---|---|---|
| committer | Eddie Hung <e.hung@imperial.ac.uk> | 2018-07-21 13:05:09 -0700 |
| commit | 926c186ec78efb086364a05ba7e83e68fa116301 (patch) | |
| tree | ee25b6376879c7add61b02a73a882d8518353afe /ice40 | |
| parent | e44dc25f098194c970d1a516fbaa0a5e911a50e1 (diff) | |
| download | nextpnr-926c186ec78efb086364a05ba7e83e68fa116301.tar.gz nextpnr-926c186ec78efb086364a05ba7e83e68fa116301.tar.bz2 nextpnr-926c186ec78efb086364a05ba7e83e68fa116301.zip | |
Add Arch::getBudgetOverride() to eliminate hack for COUT
Diffstat (limited to 'ice40')
| -rw-r--r-- | ice40/arch.cc | 6 | ||||
| -rw-r--r-- | ice40/arch.h | 1 |
2 files changed, 7 insertions, 0 deletions
diff --git a/ice40/arch.cc b/ice40/arch.cc index e9a7d2b6..fa0fd153 100644 --- a/ice40/arch.cc +++ b/ice40/arch.cc @@ -488,6 +488,12 @@ delay_t Arch::estimateDelay(WireId src, WireId dst) const return xscale * abs(xd) + yscale * abs(yd) + offset; } +delay_t Arch::getBudgetOverride(const PortRef& pr, delay_t v) const +{ + if (pr.port == id("COUT")) return 0; + return v; +} + // ----------------------------------------------------------------------- bool Arch::place() { return placer1(getCtx()); } diff --git a/ice40/arch.h b/ice40/arch.h index 21169298..1349365c 100644 --- a/ice40/arch.h +++ b/ice40/arch.h @@ -701,6 +701,7 @@ struct Arch : BaseCtx delay_t getRipupDelayPenalty() const { return 200; } float getDelayNS(delay_t v) const { return v * 0.001; } uint32_t getDelayChecksum(delay_t v) const { return v; } + delay_t getBudgetOverride(const PortRef& pr, delay_t v) const; // ------------------------------------------------- |