diff --git a/hblang/README.md b/hblang/README.md
index 1e467b7..389c445 100644
--- a/hblang/README.md
+++ b/hblang/README.md
@@ -913,3 +913,25 @@ main := fn(): int {
 	return back_buffer[1024 * 2]
 }
 ```
+
+#### something_somehow
+```hb
+foo := @use("foo.hb")
+main := fn(): void {
+	foo.blue
+	foo.red
+	return
+}
+
+// in module: foo.hb
+
+bar := @use("bar.hb")
+default := bar
+blue := default.blue
+red := default.red
+
+// in module: bar.hb
+Color := struct {r: u8, g: u8, b: u8, a: u8}
+red := Color.(255, 0, 0, 0)
+blue := Color.(1, 0, 1, 0)
+```
diff --git a/hblang/src/codegen.rs b/hblang/src/codegen.rs
index ac829b0..2446ccf 100644
--- a/hblang/src/codegen.rs
+++ b/hblang/src/codegen.rs
@@ -2547,7 +2547,7 @@ impl Codegen {
 
     pub fn disasm(&mut self, output: &mut impl std::io::Write) -> std::io::Result<()> {
         let mut bin = Vec::new();
-        self.tys.assemble(&mut bin);
+        self.assemble(&mut bin);
         self.tys.disasm(&bin, &self.files, output, |_| {})
     }
 
@@ -2701,5 +2701,6 @@ mod tests {
         writing_into_string => README;
         request_page => README;
         tests_ptr_to_ptr_copy => README;
+        something_somehow => README;
     }
 }
diff --git a/hblang/src/lib.rs b/hblang/src/lib.rs
index cda350d..0b6997d 100644
--- a/hblang/src/lib.rs
+++ b/hblang/src/lib.rs
@@ -862,11 +862,11 @@ fn disasm(
 
         let mut label_count = 0;
         while let Some(&byte) = binary.first() {
-            let inst = instr_from_byte(byte)?;
             let offset: i32 = (prev.len() - binary.len()).try_into().unwrap();
             if offset as u32 == off + len {
                 break;
             }
+            let Ok(inst) = instr_from_byte(byte) else { break };
             instrs::parse_args(binary, inst, &mut buf).ok_or(std::io::ErrorKind::OutOfMemory)?;
 
             for op in buf.drain(..) {
@@ -903,11 +903,14 @@ fn disasm(
 
         binary.take(..off as usize).unwrap();
         while let Some(&byte) = binary.first() {
-            let inst = instr_from_byte(byte).unwrap();
             let offset: i32 = (prev.len() - binary.len()).try_into().unwrap();
             if offset as u32 == off + len {
                 break;
             }
+            let Ok(inst) = instr_from_byte(byte) else {
+                writeln!(out, "invalid instr {byte}")?;
+                break;
+            };
             instrs::parse_args(binary, inst, &mut buf).unwrap();
 
             if let Some(label) = labels.get(&offset.try_into().unwrap()) {
diff --git a/hblang/tests/codegen_tests_something_somehow.txt b/hblang/tests/codegen_tests_something_somehow.txt
new file mode 100644
index 0000000..e69de29