diff --git a/js/fc.js b/js/fc.js
index 65327feb..2a6b79e5 100644
--- a/js/fc.js
+++ b/js/fc.js
@@ -1125,6 +1125,11 @@ var FC = {
                 name: "GVAR DEC",
                 hasOperand: [true, true],
                 output: "none"
+            },
+            128: {
+                name: "IO SET",
+                hasOperand: [true, true],
+                output: "none"
             }
         }
     },
diff --git a/js/msp/MSPHelper.js b/js/msp/MSPHelper.js
index b1ba40c8..e9a3b8fe 100644
--- a/js/msp/MSPHelper.js
+++ b/js/msp/MSPHelper.js
@@ -500,11 +500,11 @@ var mspHelper = (function (gui) {
                         for (i = 0; i < data.byteLength; i += 14) {
                             LOGIC_CONDITIONS.put(new LogicCondition(
                                 data.getInt8(i),
-                                data.getInt8(i + 1),
-                                data.getInt8(i + 2),
-                                data.getInt8(i + 3),
+                                data.getUint8(i + 1),
+                                data.getUint8(i + 2),
+                                data.getUint8(i + 3),
                                 data.getInt32(i + 4, true),
-                                data.getInt8(i + 8),
+                                data.getUint8(i + 8),
                                 data.getInt32(i + 9, true),
                                 data.getInt8(i + 13)
                             ));