diff --git a/target/cris/translate.c b/target/cris/translate.c
index 0b3d724281..42103b5558 100644
--- a/target/cris/translate.c
+++ b/target/cris/translate.c
@@ -411,15 +411,17 @@ static inline void t_gen_swapw(TCGv d, TCGv s)
     tcg_gen_or_tl(d, d, t);
 }
 
-/* Reverse the within each byte.
-   T0 = (((T0 << 7) & 0x80808080) |
-   ((T0 << 5) & 0x40404040) |
-   ((T0 << 3) & 0x20202020) |
-   ((T0 << 1) & 0x10101010) |
-   ((T0 >> 1) & 0x08080808) |
-   ((T0 >> 3) & 0x04040404) |
-   ((T0 >> 5) & 0x02020202) |
-   ((T0 >> 7) & 0x01010101));
+/*
+ * Reverse the bits within each byte.
+ *
+ *  T0 = ((T0 << 7) & 0x80808080)
+ *     | ((T0 << 5) & 0x40404040)
+ *     | ((T0 << 3) & 0x20202020)
+ *     | ((T0 << 1) & 0x10101010)
+ *     | ((T0 >> 1) & 0x08080808)
+ *     | ((T0 >> 3) & 0x04040404)
+ *     | ((T0 >> 5) & 0x02020202)
+ *     | ((T0 >> 7) & 0x01010101);
  */
 static void t_gen_swapr(TCGv d, TCGv s)
 {