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* Disable assign_budget() after placement legalisation, unless slack redistEddie Hung2018-08-081-1/+4
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* Merge branch 'master' into improve_timing_specEddie Hung2018-08-081-0/+12
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| * place_common: Fix illegal cells left after relative constraint legalisationDavid Shah2018-08-071-0/+12
| | | | | | | | Signed-off-by: David Shah <davey1576@gmail.com>
* | Also include TMG_GEN_CLOCK as a timing startpointEddie Hung2018-08-081-3/+2
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* | ice40: Add timing arcs through global buffersDavid Shah2018-08-081-0/+4
| | | | | | | | Signed-off-by: David Shah <davey1576@gmail.com>
* | timing: Debugging implementation of new timing APIDavid Shah2018-08-082-5/+10
| | | | | | | | Signed-off-by: David Shah <davey1576@gmail.com>
* | ice40: Timing arch fixDavid Shah2018-08-081-3/+17
| | | | | | | | Signed-off-by: David Shah <davey1576@gmail.com>
* | timing: Update to new use API (currently broken)David Shah2018-08-085-19/+33
| | | | | | | | Signed-off-by: David Shah <davey1576@gmail.com>
* | Arch API: New specification for timing port classesDavid Shah2018-08-087-35/+66
| | | | | | | | Signed-off-by: David Shah <davey1576@gmail.com>
* | common: Add TimingPortClassDavid Shah2018-08-081-1/+14
| | | | | | | | Signed-off-by: David Shah <davey1576@gmail.com>
* | Cleanup nestingEddie Hung2018-08-061-59/+59
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* | Do less work if update flag is falseEddie Hung2018-08-061-6/+6
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* | clangformatEddie Hung2018-08-064-51/+57
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* | Also add PLL outputs as timing startpointsEddie Hung2018-08-061-15/+3
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* | Add Arch::isIOCell() to ecp5 and genericEddie Hung2018-08-063-0/+10
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* | Remove old timing codeEddie Hung2018-08-061-88/+0
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* | Compute critical path reportEddie Hung2018-08-061-2/+49
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* | Add commentsEddie Hung2018-08-061-11/+43
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* | Merge branch 'master' into assign_budget_speedupEddie Hung2018-08-062-4/+22
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| * Merge pull request #39 from eddiehung/slack_histogramDavid Shah2018-08-061-2/+4
| |\ | | | | | | Improve slack histogram clarity
| | * Enhance slack histogram with '+' to indicate less-than-granularityEddie Hung2018-08-061-2/+4
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| * | Merge pull request #40 from eddiehung/fix_budget_overridesDavid Shah2018-08-068-24/+46
| |\ \ | | | | | | | | Fix budget overrides
| | * | ice40's getBudgetOverride() to return correct delay for different devicesEddie Hung2018-08-061-2/+17
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| | * | Add name to copyright headerEddie Hung2018-08-061-0/+1
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| * | | Merge pull request #38 from eddiehung/assign_budget_evenlyEddie Hung2018-08-063-8/+12
| |\ \ \ | | |_|/ | |/| | Restore original assign_budget behaviour (to distribute slack evenly)
* | | | Use new Arch::isIOCell() function in TimingEddie Hung2018-08-061-1/+1
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* | | | Add new Arch::isIOCell() API functionEddie Hung2018-08-062-0/+7
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* | | | Consider clocked cells with COUT, consider constant netsEddie Hung2018-08-061-20/+38
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* | | | Merge branch 'fix_budget_overrides' into assign_budget_speedupEddie Hung2018-08-063-28/+25
|\ \ \ \ | | |_|/ | |/| | | | | | | | | | Conflicts: common/timing.cc
| * | | Modify docEddie Hung2018-08-061-2/+2
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| * | | Fix use of getBudgetOverride in Timing::follow_net()Eddie Hung2018-08-061-12/+16
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| * | | Fix ice40's getBudgetOverride() to override only for COUT -> CINEddie Hung2018-08-061-1/+1
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| * | | Modify getBudgetOverride for generic and ecp5 tooEddie Hung2018-08-064-4/+4
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| * | | Change getBudgetOverride() signature to return bool and modify budget in placeEddie Hung2018-08-062-5/+7
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* | | Merge branch 'assign_budget_evenly' into assign_budget_speedupEddie Hung2018-08-063-8/+12
|\| | | | | | | | | | | | | | Conflicts: common/timing.cc
| * | clangformatEddie Hung2018-08-061-4/+5
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| * | Add net_delays bool to Timing class to control net delay considerationEddie Hung2018-08-061-5/+6
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| * | Unless slack_redist is enabled, ignore net delays so that budget gets evenly ↵Eddie Hung2018-08-051-1/+1
| | | | | | | | | | | | divided between all nets on path
| * | Restore initial assign_budget() call after pack(), restrict call after ↵Eddie Hung2018-08-052-1/+3
| |/ | | | | | | initial_placement to slack_redist
* | WIP for new assign_budget() using topographical orderingEddie Hung2018-08-051-6/+165
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* | Modify getBudgetOverride for generic and ecp5 tooEddie Hung2018-08-054-4/+4
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* | Change getBudgetOverride() signature to return bool and modify budget in placeEddie Hung2018-08-052-5/+7
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* Merge pull request #37 from YosysHQ/ngapiClifford Wolf2018-08-0521-289/+298
|\ | | | | API change: Use CellInfo* and NetInfo* as cell/net handles
| * API change: Use CellInfo* and NetInfo* as cell/net handles (ECP5)David Shah2018-08-055-61/+58
| | | | | | | | Signed-off-by: David Shah <davey1576@gmail.com>
| * API change: Use CellInfo* and NetInfo* as cell/net handles (Python bindings)David Shah2018-08-053-18/+26
| | | | | | | | Signed-off-by: David Shah <davey1576@gmail.com>
| * API change: Use CellInfo* and NetInfo* as cell/net handles (archapi docs)Clifford Wolf2018-08-051-16/+16
| | | | | | | | Signed-off-by: Clifford Wolf <clifford@clifford.at>
| * API change: Use CellInfo* and NetInfo* as cell/net handles (generic)Clifford Wolf2018-08-052-39/+42
| | | | | | | | Signed-off-by: Clifford Wolf <clifford@clifford.at>
| * API change: Use CellInfo* and NetInfo* as cell/net handles (common, ice40)Clifford Wolf2018-08-0510-155/+156
| | | | | | | | Signed-off-by: Clifford Wolf <clifford@clifford.at>
* | timing: Fix slack histogram segfault with no pathsDavid Shah2018-08-051-1/+1
|/ | | | Signed-off-by: David Shah <davey1576@gmail.com>
* Merge pull request #36 from YosysHQ/lutpermDavid Shah2018-08-0513-227/+1033
|\ | | | | Add LUT input permutations, improvements in ice40 timing model, improvements in router
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