1 files changed, 2 insertions, 1 deletions
diff --git a/ggml.h b/ggml.h
index a8a7b6b..460d4ff 100644
--- a/ggml.h
+++ b/ggml.h
@@ -630,7 +630,8 @@ struct ggml_tensor * ggml_soft_max(
 
 // rotary position embedding
 // in-place, returns view(a)
-// if mode == 1, skip n_past elements
+// if mode & 1 == 1, skip n_past elements
+// if mode & 2 == 1, GPT-NeoX style
 // TODO: avoid creating a new tensor every time
 struct ggml_tensor * ggml_rope(
         struct ggml_context * ctx,