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Add new builtin FF types
The new types include: - FFs with async reset and enable (`$adffe`, `$_DFFE_[NP][NP][01][NP]_`) - FFs with sync reset (`$sdff`, `$_SDFF_[NP][NP][01]_`) - FFs with sync reset and enable, reset priority (`$sdffs`, `$_SDFFE_[NP][NP][01][NP]_`) - FFs with sync reset and enable, enable priority (`$sdffce`, `$_SDFFCE_[NP][NP][01][NP]_`) - FFs with async reset, set, and enable (`$dffsre`, `$_DFFSRE_[NP][NP][NP][NP]_`) - latches with reset or set (`$adlatch`, `$_DLATCH_[NP][NP][01]_`) The new FF types are not actually used anywhere yet (this is left for future commits).
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8 changed files with 2736 additions and 70 deletions
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@ -158,6 +158,9 @@ X(SRC_EN)
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X(SRC_PEN)
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X(SRC_POL)
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X(SRC_WIDTH)
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X(SRST)
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X(SRST_POLARITY)
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X(SRST_VALUE)
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X(STATE_BITS)
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X(STATE_NUM)
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X(STATE_NUM_LOG2)
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