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Diffstat (limited to 'src/main')
| -rw-r--r-- | src/main/scala/chisel3/util/BitPat.scala | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/main/scala/chisel3/util/BitPat.scala b/src/main/scala/chisel3/util/BitPat.scala index d607be4f..4b94879f 100644 --- a/src/main/scala/chisel3/util/BitPat.scala +++ b/src/main/scala/chisel3/util/BitPat.scala @@ -89,6 +89,7 @@ object BitPat { * @note the UInt must be a literal */ def apply(x: UInt): BitPat = { + require(x.isLit, s"$x is not a literal, BitPat.apply(x: UInt) only accepts literals") val len = if (x.isWidthKnown) x.getWidth else 0 apply("b" + x.litValue.toString(2).reverse.padTo(len, "0").reverse.mkString) } |