diff options
Diffstat (limited to 'src/main/scala/chisel3/util')
| -rw-r--r-- | src/main/scala/chisel3/util/experimental/decode/TruthTable.scala | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/src/main/scala/chisel3/util/experimental/decode/TruthTable.scala b/src/main/scala/chisel3/util/experimental/decode/TruthTable.scala index e742fd66..00fa0f9c 100644 --- a/src/main/scala/chisel3/util/experimental/decode/TruthTable.scala +++ b/src/main/scala/chisel3/util/experimental/decode/TruthTable.scala @@ -31,10 +31,15 @@ object TruthTable { /** Convert a table and default output into a [[TruthTable]]. */ def apply(table: Iterable[(BitPat, BitPat)], default: BitPat, sort: Boolean = true): TruthTable = { - require(table.map(_._1.getWidth).toSet.size == 1, "input width not equal.") + val inputWidth = table.map(_._1.getWidth).max require(table.map(_._2.getWidth).toSet.size == 1, "output width not equal.") val outputWidth = table.map(_._2.getWidth).head - val mergedTable = table + val mergedTable = table.map { + // pad input signals if necessary + case (in, out) if inputWidth > in.width => + (BitPat.N(inputWidth - in.width) ## in, out) + case (in, out) => (in, out) + } .groupBy(_._1.toString) .map { case (key, values) => |