diff options
Diffstat (limited to 'core')
| -rw-r--r-- | core/src/main/scala/chisel3/StrongEnum.scala | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/core/src/main/scala/chisel3/StrongEnum.scala b/core/src/main/scala/chisel3/StrongEnum.scala index 1d0e04d3..b3d7cf7d 100644 --- a/core/src/main/scala/chisel3/StrongEnum.scala +++ b/core/src/main/scala/chisel3/StrongEnum.scala @@ -135,6 +135,24 @@ abstract class EnumType(private val factory: EnumFactory, selfAnnotating: Boolea } } + /** Test if this enumeration is equal to any of the values in a given sequence + * + * @param s a [[scala.collection.Seq$ Seq]] of enumeration values to look for + * @return a hardware [[Bool]] that indicates if this value matches any of the given values + */ + final def isOneOf(s: Seq[EnumType])(implicit sourceInfo: SourceInfo, compileOptions: CompileOptions): Bool = { + VecInit(s.map(this === _)).asUInt().orR() + } + + /** Test if this enumeration is equal to any of the values given as arguments + * + * @param u1 the first value to look for + * @param u2 zero or more additional values to look for + * @return a hardware [[Bool]] that indicates if this value matches any of the given values + */ + final def isOneOf(u1: EnumType, u2: EnumType*)(implicit sourceInfo: SourceInfo, compileOptions: CompileOptions): Bool + = isOneOf(u1 +: u2.toSeq) + def next(implicit sourceInfo: SourceInfo, compileOptions: CompileOptions): this.type = { if (litOption.isDefined) { val index = factory.all.indexOf(this) |