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* ice40: reduce ABC9 internal fanout warnings with a param for CI->I3Eddie Hung2020-01-241-2/+3
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* Sensitive to direct inst of $__ICE40_CARRY_WRAPPER; recreate SB_LUT4Eddie Hung2019-12-091-1/+1
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* Revert "Merge pull request #1280 from ↵Eddie Hung2019-08-121-22/+8
| | | | | | | YosysHQ/revert-1266-eddie/ice40_full_adder" This reverts commit c851dc13108021834533094a8a3236da6d9e0161, reversing changes made to f54bf1631ff37a83733c162e6ebd188c1d5ea18f.
* Revert "Wrap SB_LUT+SB_CARRY into $__ICE40_CARRY_WRAPPER"David Shah2019-08-101-8/+22
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* Add ice40_wrapcarry pass, rename $__ICE40_FULL_ADDER -> CARRY_WRAPPEREddie Hung2019-08-071-1/+9
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* Wrap SB_CARRY+SB_LUT into $__ICE40_FULL_ADDEREddie Hung2019-08-071-22/+0
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* $__ICE40_CARRY_LUT4 -> $__ICE40_FULL_ADDER as per @whitequarkEddie Hung2019-07-151-1/+1
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* Fix spacingEddie Hung2019-07-121-1/+1
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* _ABC macro will map and unmap to this new boxEddie Hung2019-07-121-0/+10
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* Fixed trailing whitespacesClifford Wolf2015-07-021-2/+2
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* Added ice40 SB_CARRY supportClifford Wolf2015-04-181-0/+70