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base repository: YosysHQ/nextpnr
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head repository: smunaut/nextpnr
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  • 5 commits
  • 8 files changed
  • 2 contributors

Commits on Jan 31, 2021

  1. timing: Always split histogram with zero as a boundary 

    If the timing histogram has both positive and negative numbers,
then we ensure that zero is used as a boundary and that at least
25% of the bins are dedicated to both positive and negative side
so you get a decent level of details on both sides.

Obviously that means bin size is different for positive / negative
sides.

Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
    @smunaut
    smunaut committed Jan 31, 2021
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  2. ice40: Use correct delays for LUT-permutation pips 

    Signed-off-by: David Shah <dave@ds0.me>
    @gatecat @smunaut
    gatecat authored and smunaut committed Jan 31, 2021
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  3. ice40: Pack LUT and carry in more cases 

    Signed-off-by: David Shah <dave@ds0.me>
    @gatecat @smunaut
    gatecat authored and smunaut committed Jan 31, 2021
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  4. [WIP] ice40: Initial placement 

    Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
    @smunaut
    smunaut committed Jan 31, 2021
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  5. ecp5 fix for placement

    @smunaut
    smunaut committed Jan 31, 2021
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