diff --git a/bootloader/rustsbi-k210.bin b/bootloader/rustsbi-k210.bin
index 58d1c1a7..79d3db85 100755
Binary files a/bootloader/rustsbi-k210.bin and b/bootloader/rustsbi-k210.bin differ
diff --git a/bootloader/rustsbi-qemu.bin b/bootloader/rustsbi-qemu.bin
index f293ced7..2ae8e542 100755
Binary files a/bootloader/rustsbi-qemu.bin and b/bootloader/rustsbi-qemu.bin differ
diff --git a/user/src/bin/02power.rs b/user/src/bin/02power.rs
index 86154c71..54fde244 100644
--- a/user/src/bin/02power.rs
+++ b/user/src/bin/02power.rs
@@ -19,7 +19,7 @@ fn main() -> i32 {
         index = (index + 1) % SIZE;
         pow[index] = last * P % MOD;
         if i % 10000 == 0 {
-            println!("{}^{}={}", P, i, pow[index]);
+            println!("{}^{}={}(MOD {})", P, i, pow[index], MOD);
         }
     }
     println!("Test power OK!");