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* Add force_downto and force_upto wire attributes.Marcelina Koƛcielnicka2020-05-191-0/+12
| | | | Fixes #2058.
* techlibs/common: more robustness when *_WIDTH = 0Eddie Hung2020-05-051-2/+6
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* cmp2lcu: rename _90_lcu_cmp -> _80_lcu_cmpEddie Hung2020-04-031-1/+1
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* cmp2lcu: fail if `LUT_WIDTH < 2Eddie Hung2020-04-031-1/+1
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* +/cmp2lcu.v to work efficiently for fully/partially constant inputsEddie Hung2020-04-031-33/+42
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* Refactor +/cmp2lcu.v into recursive techmapEddie Hung2020-04-031-38/+65
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* CleanupEddie Hung2020-04-031-31/+28
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* Cleanup cmp2lcu.vEddie Hung2020-04-031-16/+16
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* techmap +/cmp2lcu.v for decomposing arithmetic compares to $lcuEddie Hung2020-04-031-0/+83