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Do not map $eq and $ne in cmp2lut, only proper arithmetic cmp
Signed-off-by: Clifford Wolf <clifford@clifford.at>
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// with n <= k inputs should be techmapped in this way, because this shortens the critical path
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// from n to 1 by avoiding carry chains.
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(* techmap_celltype = "$eq $ne $lt $le $gt $ge" *)
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(* techmap_celltype = "$lt $le $gt $ge" *)
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module _90_lut_cmp_ (A, B, Y);
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parameter A_SIGNED = 0;
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