diff --git a/Jocaml.java b/Jocaml.java
index ffacb56..9293415 100644
--- a/Jocaml.java
+++ b/Jocaml.java
@@ -389,14 +389,14 @@ public class Jocaml {
             }
         }
 
-        public void unmarshal() throws Exception {
+        public List<Object> unmarshal() throws Exception {
             this.data.order(ByteOrder.BIG_ENDIAN);
             int magic = this.data.getInt(0);
             if (magic != MARSHAL_MAGIC_SMALL) {
                 throw new Exception("bad marshal magic");
             }
 
-            int byteLength = this.data.getInt(4);
+            // int byteLength = this.data.getInt(4);
             int numObjs = this.data.getInt(8);
             System.out.println(numObjs);
 
@@ -411,26 +411,39 @@ public class Jocaml {
             }
 
             System.out.println(shared.size());
-
-            System.out.println(objs);
+            return objs;
         }
 
-        public void disassemble() throws Exception {
+        public void disassemble(List<String> prim) throws Exception {
             this.data.order(ByteOrder.LITTLE_ENDIAN);
             this.data.position(0);
+            int offset = 0;
             while (this.data.position() < this.data.capacity()) {
                 int op = this.data.getInt();
                 String rep = null;
                 try {
                     CamlInst inst = CamlInst.values()[op];
                     rep = inst.name();
-                    for (int i = 0; i < inst.numArgs; i++) {
-                        rep += " " + this.data.getInt();
+                    if (inst == CamlInst.C_CALL1 || inst == CamlInst.C_CALL2
+                            || inst == CamlInst.C_CALL3 || inst == CamlInst.C_CALL4
+                            || inst == CamlInst.C_CALL5 || inst == CamlInst.C_CALLN) {
+                        int p = this.data.getInt();
+                        rep += " " + prim.get(p);
+                        if (inst == CamlInst.C_CALLN) {
+                            int n = this.data.getInt();
+                            rep += " " + n;
+                        }
+                    } else {
+                        for (int i = 0; i < inst.numArgs; i++) {
+                            rep += " " + this.data.getInt();
+                        }
                     }
                 } catch (ArrayIndexOutOfBoundsException e) {
                     rep = "<UNKNOWN " + op + ">";
                 }
+                System.out.printf("%04d: ", offset);
                 System.out.println(rep);
+                offset += 1;
             }
         }
     }
@@ -479,9 +492,13 @@ public class Jocaml {
         }
 
         System.out.println(Arrays.toString(sections));
-        findSection(sections, "SYMB").unmarshal();
-        findSection(sections, "CRCS").unmarshal();
-        findSection(sections, "DATA").unmarshal();
-        findSection(sections, "CODE").disassemble();
+        List<Object> symb = findSection(sections, "SYMB").unmarshal();
+        System.out.println(symb);
+        List<Object> crcs = findSection(sections, "CRCS").unmarshal();
+        System.out.println(crcs);
+        List<Object> data = findSection(sections, "DATA").unmarshal();
+        System.out.println(data);
+        List<String> prim = findSection(sections, "PRIM").unstring();
+        findSection(sections, "CODE").disassemble(prim);
     }
 }