Add a fixme for unhandled fences but allow them to execute.

1 files changed, 2 insertions, 1 deletions

diff --git a/riscv/riscv.sail b/riscv/riscv.sail
index 9ef2365d..9ec5734e 100644
--- a/riscv/riscv.sail
+++ b/riscv/riscv.sail
@@ -259,7 +259,8 @@ function clause execute (FENCE(pred, succ)) = {
     (0b0010, 0b0010) => MEM_fence_r_r(),
     (0b0011, 0b0001) => MEM_fence_rw_w(),
     (0b0001, 0b0001) => MEM_fence_w_w(),
-    _ => not_implemented("unsupported fence")
+    _ => { print("FIXME: unsupported fence");
+           () }
   }
 }