diff --git a/sdk/software/examples/asm/user-sample.c b/sdk/software/examples/asm/user-sample.c
index 7b78f44..8af0ffe 100644
--- a/sdk/software/examples/asm/user-sample.c
+++ b/sdk/software/examples/asm/user-sample.c
@@ -198,16 +198,10 @@ int main(void)
                    (unsigned long)tcrc,
                    (unsigned long)extram[DST_BASE]);
         }
-        if (g == 1) {
-            printf("DBG g=1 A[0..3]=%08lx %08lx %08lx %08lx\n",
-                   (unsigned long)a_buf[0], (unsigned long)a_buf[1],
-                   (unsigned long)a_buf[2], (unsigned long)a_buf[3]);
-            printf("DBG g=1 B[0..3]=%08lx %08lx %08lx %08lx\n",
-                   (unsigned long)b_buf[0], (unsigned long)b_buf[4],
-                   (unsigned long)b_buf[8], (unsigned long)b_buf[12]);
-            printf("DBG g=1 C[0..2]=%08lx %08lx %08lx\n",
-                   (unsigned long)c_buf[0], (unsigned long)c_buf[1],
-                   (unsigned long)c_buf[2]);
+        if (g <= 3 || g >= (MATMUL_GROUP_NUM-2)) {
+            printf("DBG g=%d A0=%08lx B0=%08lx C0=%08lx\n",
+                   g, (unsigned long)a_buf[0], (unsigned long)b_buf[0],
+                   (unsigned long)c_buf[0]);
         }
     }