diff options
Diffstat (limited to 'chiselFrontend/src/main/scala/chisel3/core/BiConnect.scala')
| -rw-r--r-- | chiselFrontend/src/main/scala/chisel3/core/BiConnect.scala | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/chiselFrontend/src/main/scala/chisel3/core/BiConnect.scala b/chiselFrontend/src/main/scala/chisel3/core/BiConnect.scala index 71de50f6..b7fd65a5 100644 --- a/chiselFrontend/src/main/scala/chisel3/core/BiConnect.scala +++ b/chiselFrontend/src/main/scala/chisel3/core/BiConnect.scala @@ -166,8 +166,28 @@ object BiConnect { case (Some(Output), None) => issueConnectR2L(left, right) case (None, Some(Input)) => issueConnectR2L(left, right) - case (Some(Input), Some(Input)) => throw BothDriversException - case (Some(Output), Some(Output)) => throw NeitherDriverException + case (Some(Input), Some(Input)) => { + if (compileOptions.portDeterminesDirection) + (left.binding, right.binding) match { + case (PortBinding(_, _), PortBinding(_, _)) => throw BothDriversException + case (PortBinding(_, _), _) => issueConnectL2R(left, right) + case (_, PortBinding(_, _)) => issueConnectR2L(left, right) + case _ => throw BothDriversException + } else { + throw BothDriversException + } + } + case (Some(Output), Some(Output)) => { + if (compileOptions.portDeterminesDirection) + (left.binding, right.binding) match { + case (PortBinding(_, _), PortBinding(_, _)) => throw BothDriversException + case (PortBinding(_, _), _) => issueConnectR2L(left, right) + case (_, PortBinding(_, _)) => issueConnectL2R(left, right) + case _ => throw BothDriversException + } else { + throw BothDriversException + } + } case (None, None) => throw UnknownDriverException } } |