diff --git a/SourceGen/RuntimeData/SystemDefs.json b/SourceGen/RuntimeData/SystemDefs.json
index 8249775..0a1449e 100644
--- a/SourceGen/RuntimeData/SystemDefs.json
+++ b/SourceGen/RuntimeData/SystemDefs.json
@@ -164,11 +164,11 @@
       }
     },
     {
-      "Name" : "Commodore 64",
+      "Name" : "Commodore 64 (PRG)",
       "GroupName" : "Commodore",
       "Cpu" : "6510",
       "Speed" : "1.023",
-      "Description" : "Commodore 64 home computer.",
+      "Description" : "Commodore 64 home computer.  The first two bytes hold the load address.",
       "SymbolFiles" : [
         "RT:Commodore/C64-Kernal.sym65"
       ],
@@ -178,6 +178,20 @@
         "first-word-is-load-addr":"true"
       }
     },
+    {
+      "Name" : "Commodore 64 (BIN)",
+      "GroupName" : "Commodore",
+      "Cpu" : "6510",
+      "Speed" : "1.023",
+      "Description" : "Commodore 64 home computer.  General binary file.",
+      "SymbolFiles" : [
+        "RT:Commodore/C64-Kernal.sym65"
+      ],
+      "ExtensionScripts" : [
+      ],
+      "Parameters" : {
+      }
+    },
     {
       "Name" : "Commodore 128",
       "GroupName" : "Commodore",
@@ -191,7 +205,6 @@
       "ExtensionScripts" : [
       ],
       "Parameters" : {
-        "first-word-is-load-addr":"true"
       }
     },
     {