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* ecp5: Use dfflegalize.Marcelina Kościelnicka2020-07-051-54/+89
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* Update dff2dffe, dff2dffs, zinit to new FF types.Marcelina Kościelnicka2020-06-231-29/+29
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* Add force_downto and force_upto wire attributes.Marcelina Kościelnicka2020-05-191-0/+1
| | | | Fixes #2058.
* xilinx/ice40/ecp5: undo permuting LUT masks in lut_mapEddie Hung2020-01-271-77/+55
| | | | Now done in read_aiger
* ecp5: Add support for mapping PRLD FFsDavid Shah2019-12-071-0/+15
| | | | Signed-off-by: David Shah <dave@ds0.me>
* ecp5: deduplicate Diamond FD/IFS/OFS/IO primitives.whitequark2019-08-301-40/+2
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* ecp5: allow (and enable by default) GSR on FD/IFS/OFS primitives.whitequark2019-08-301-35/+20
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* ecp5: add missing FD primitives.whitequark2019-08-301-36/+38
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* ecp5: fix CEMUX on IFS/OFS primitives.whitequark2019-08-301-9/+9
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* ecp5: Add GSR supportDavid Shah2019-08-271-48/+48
| | | | Signed-off-by: David Shah <dave@ds0.me>
* Merge origin/masterEddie Hung2019-06-271-2/+38
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* Clean upEddie Hung2019-06-181-6/+4
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* ecp5: Add abc9 optionDavid Shah2019-06-141-53/+80
| | | | Signed-off-by: David Shah <dave@ds0.me>
* ECP5: implement all Diamond I/O buffer primitives.whitequark2019-06-061-0/+15
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* ecp5: Compatibility with Migen AsyncResetSynchronizerDavid Shah2019-02-251-0/+3
| | | | Signed-off-by: David Shah <davey1576@gmail.com>
* ecp5: Disable LSR inversionDavid Shah2018-10-161-16/+16
| | | | Signed-off-by: David Shah <dave@ds0.me>
* ecp5: Adding synchronous set/reset supportDavid Shah2018-07-141-19/+39
| | | | Signed-off-by: David Shah <davey1576@gmail.com>
* ecp5: Adding basic synth_ecp5 based on synth_ice40David Shah2018-07-131-7/+7
| | | | Signed-off-by: David Shah <davey1576@gmail.com>
* ecp5: Adding DFF mapsDavid Shah2018-07-131-0/+29
| | | | Signed-off-by: David Shah <davey1576@gmail.com>
* ecp5: Adding basic cells_sim and mapper for LUTs up to LUT7David Shah2018-07-131-0/+86
Signed-off-by: David Shah <davey1576@gmail.com>