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* iopadmap: Add native support for negative-polarity output enable.Marcelina Kościelnicka2021-11-091-8/+0
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* Gowin: deal with active-low tristate (#2971)Pepijn de Vos2021-08-201-0/+7
| | | | | | | | | * deal with active-low tristate * remove empty port * update sim models * add expected lut1 to tests
* gowin: Use dfflegalize.Marcelina Kościelnicka2020-07-061-145/+40
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* Update dff2dffe, dff2dffs, zinit to new FF types.Marcelina Kościelnicka2020-06-231-24/+24
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* Add force_downto and force_upto wire attributes.Marcelina Kościelnicka2020-05-191-0/+1
| | | | Fixes #2058.
* attempt to fix formattingPepijn de Vos2019-11-251-154/+154
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* gowin: add and test dff init valuesPepijn de Vos2019-11-251-38/+187
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* Remove dff init altogetherPepijn de Vos2019-11-191-2/+3
| | | | | The hardware does not actually support it. In reality it is always initialised to its reset value.
* fix fsm test with proper clock enable polarityPepijn de Vos2019-11-111-4/+4
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* fix wide lutsPepijn de Vos2019-11-061-12/+12
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* add wide lutsPepijn de Vos2019-10-281-0/+24
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* add a few more missing dffPepijn de Vos2019-10-211-7/+16
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* add negedge DFFPepijn de Vos2019-10-211-7/+26
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* Revert "add MUX support"Pepijn de Vos2019-09-061-3/+0
| | | | | | It turns out that they make everything worse and they don't PnR. This reverts commit 3eff2271d0fe25632f7e6b22cf0be078d2cd9990.
* add more DFF to sim libPepijn de Vos2019-09-061-6/+6
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* WIP aditional DFF primitivesPepijn de Vos2019-09-051-1/+46
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* add MUX supportPepijn de Vos2019-09-051-0/+3
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* GoWin enablement: DRAM, initial BRAM, DRAM init, DRAM sim and synth_gowin flowDiego2019-04-121-1/+5
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* Added initial version of "synth_gowin"Clifford Wolf2016-11-011-0/+31