1 files changed, 7 insertions, 1 deletions
diff --git a/src/itfile.rs b/src/itfile.rs
index 6d85a87..311207b 100644
--- a/src/itfile.rs
+++ b/src/itfile.rs
@@ -541,7 +541,8 @@ pub fn load(filename: &str) -> Result<ITFile, self::Error>
     let patt_offsets: Vec<u32> = read_vec(&mut f, header.npatt as usize)?;
     
     println!("orders {:?}", orders);
-    println!("inst offsets {:x?}",inst_offsets);
+    println!("inst offsets {:x?}", inst_offsets);
+    println!("patt offsets {:x?}", patt_offsets);
     
     let mut message = String::new();
     if header.has_message()
@@ -601,6 +602,11 @@ pub fn load(filename: &str) -> Result<ITFile, self::Error>
     let mut patterns: Vec<Patt> = Vec::new();
     for patt_offset in patt_offsets
     {
+        if patt_offset == 0
+        {
+            patterns.push(Patt{nrows: 0, nch: 64, data: vec![]});
+            continue;
+        }
         f.seek(SeekFrom::Start(patt_offset.into()))?;
         let patt = Patt::load(&mut f)?;
         let dataend_off = f.stream_position()?;