diff --git a/wasm/wast-async.json b/wasm/wast-async.json
index c8cebd43..ed6f897f 100644
--- a/wasm/wast-async.json
+++ b/wasm/wast-async.json
@@ -88,16 +88,16 @@
     "imports": "(import \"ethereum\" \"create\" (func $create (param i32 i32 i32 i32 i32) ))"
   },
   "CALL": {
-    "wast": ";; generated by ./wasm/generateInterface.js\n(func $CALL (param $callback i32)(local $offset0 i32)(local $length0 i32) (set_local $offset0 (call $check_overflow\n          (i64.load (i32.add (get_global $sp) (i32.const -96)))\n          (i64.load (i32.add (get_global $sp) (i32.const -88)))\n          (i64.load (i32.add (get_global $sp) (i32.const -80)))\n          (i64.load (i32.add (get_global $sp) (i32.const -72)))))(set_local $length0 (call $check_overflow\n          (i64.load (i32.add (get_global $sp) (i32.const -128)))\n          (i64.load (i32.add (get_global $sp) (i32.const -120)))\n          (i64.load (i32.add (get_global $sp) (i32.const -112)))\n          (i64.load (i32.add (get_global $sp) (i32.const -104)))))\n    (call $memusegas (get_local $offset0) (get_local $length0))\n    (set_local $offset0 (i32.add (get_global $memstart) (get_local $offset0))) (i64.store\n      (i32.add (get_global $sp) (i32.const -192))\n      (i64.extend_u/i32\n        (i32.eqz (call $call(call $check_overflow_i64\n          (i64.load (i32.add (get_global $sp) (i32.const 0)))\n          (i64.load (i32.add (get_global $sp) (i32.const 8)))\n          (i64.load (i32.add (get_global $sp) (i32.const 16)))\n          (i64.load (i32.add (get_global $sp) (i32.const 24))))(i32.add (get_global $sp) (i32.const -32))(i32.add (get_global $sp) (i32.const -64))(get_local $offset0)(get_local $length0)(get_local $callback)) ;; flip CALL result from EEI to EVM convention (0 -> 1, 1,2,.. -> 1)\n      )))\n    ;; zero out mem\n    (i64.store (i32.add (get_global $sp) (i32.const -168)) (i64.const 0))\n    (i64.store (i32.add (get_global $sp) (i32.const -176)) (i64.const 0))\n    (i64.store (i32.add (get_global $sp) (i32.const -184)) (i64.const 0)))",
-    "imports": "(import \"ethereum\" \"call\" (func $call (param i64 i32 i32 i32 i32 i32) (result i32)))"
+    "wast": ";; generated by ./wasm/generateInterface.js\n(func $CALL (param $callback i32)(local $offset0 i32)(local $length0 i32) (set_local $offset0 (call $check_overflow\n          (i64.load (i32.add (get_global $sp) (i32.const -96)))\n          (i64.load (i32.add (get_global $sp) (i32.const -88)))\n          (i64.load (i32.add (get_global $sp) (i32.const -80)))\n          (i64.load (i32.add (get_global $sp) (i32.const -72)))))(set_local $length0 (call $check_overflow\n          (i64.load (i32.add (get_global $sp) (i32.const -128)))\n          (i64.load (i32.add (get_global $sp) (i32.const -120)))\n          (i64.load (i32.add (get_global $sp) (i32.const -112)))\n          (i64.load (i32.add (get_global $sp) (i32.const -104)))))\n    (call $memusegas (get_local $offset0) (get_local $length0))\n    (set_local $offset0 (i32.add (get_global $memstart) (get_local $offset0))) (i64.store\n      (i32.add (get_global $sp) (i32.const -256))\n      (i64.extend_u/i32\n        (i32.eqz (call $call(call $check_overflow_i64\n          (i64.load (i32.add (get_global $sp) (i32.const 0)))\n          (i64.load (i32.add (get_global $sp) (i32.const 8)))\n          (i64.load (i32.add (get_global $sp) (i32.const 16)))\n          (i64.load (i32.add (get_global $sp) (i32.const 24))))(i32.add (get_global $sp) (i32.const -32))(i32.add (get_global $sp) (i32.const -64))(get_local $offset0)(get_local $length0)(get_local $callback)) ;; flip CALL result from EEI to EVM convention (0 -> 1, 1,2,.. -> 1)\n      )))\n    ;; zero out mem\n    (i64.store (i32.add (get_global $sp) (i32.const -232)) (i64.const 0))\n    (i64.store (i32.add (get_global $sp) (i32.const -240)) (i64.const 0))\n    (i64.store (i32.add (get_global $sp) (i32.const -248)) (i64.const 0)))",
+    "imports": "(import \"ethereum\" \"call\" (func $call (param i64 i32 i32 i32 i32 i32 i32 i32) (result i32)))"
   },
   "CALLCODE": {
-    "wast": ";; generated by ./wasm/generateInterface.js\n(func $CALLCODE (param $callback i32)(local $offset0 i32)(local $length0 i32) (set_local $offset0 (call $check_overflow\n          (i64.load (i32.add (get_global $sp) (i32.const -96)))\n          (i64.load (i32.add (get_global $sp) (i32.const -88)))\n          (i64.load (i32.add (get_global $sp) (i32.const -80)))\n          (i64.load (i32.add (get_global $sp) (i32.const -72)))))(set_local $length0 (call $check_overflow\n          (i64.load (i32.add (get_global $sp) (i32.const -128)))\n          (i64.load (i32.add (get_global $sp) (i32.const -120)))\n          (i64.load (i32.add (get_global $sp) (i32.const -112)))\n          (i64.load (i32.add (get_global $sp) (i32.const -104)))))\n    (call $memusegas (get_local $offset0) (get_local $length0))\n    (set_local $offset0 (i32.add (get_global $memstart) (get_local $offset0))) (i64.store\n      (i32.add (get_global $sp) (i32.const -192))\n      (i64.extend_u/i32\n        (i32.eqz (call $callCode(call $check_overflow_i64\n          (i64.load (i32.add (get_global $sp) (i32.const 0)))\n          (i64.load (i32.add (get_global $sp) (i32.const 8)))\n          (i64.load (i32.add (get_global $sp) (i32.const 16)))\n          (i64.load (i32.add (get_global $sp) (i32.const 24))))(i32.add (get_global $sp) (i32.const -32))(i32.add (get_global $sp) (i32.const -64))(get_local $offset0)(get_local $length0)(get_local $callback)) ;; flip CALL result from EEI to EVM convention (0 -> 1, 1,2,.. -> 1)\n      )))\n    ;; zero out mem\n    (i64.store (i32.add (get_global $sp) (i32.const -168)) (i64.const 0))\n    (i64.store (i32.add (get_global $sp) (i32.const -176)) (i64.const 0))\n    (i64.store (i32.add (get_global $sp) (i32.const -184)) (i64.const 0)))",
-    "imports": "(import \"ethereum\" \"callCode\" (func $callCode (param i64 i32 i32 i32 i32 i32) (result i32)))"
+    "wast": ";; generated by ./wasm/generateInterface.js\n(func $CALLCODE (param $callback i32)(local $offset0 i32)(local $length0 i32) (set_local $offset0 (call $check_overflow\n          (i64.load (i32.add (get_global $sp) (i32.const -96)))\n          (i64.load (i32.add (get_global $sp) (i32.const -88)))\n          (i64.load (i32.add (get_global $sp) (i32.const -80)))\n          (i64.load (i32.add (get_global $sp) (i32.const -72)))))(set_local $length0 (call $check_overflow\n          (i64.load (i32.add (get_global $sp) (i32.const -128)))\n          (i64.load (i32.add (get_global $sp) (i32.const -120)))\n          (i64.load (i32.add (get_global $sp) (i32.const -112)))\n          (i64.load (i32.add (get_global $sp) (i32.const -104)))))\n    (call $memusegas (get_local $offset0) (get_local $length0))\n    (set_local $offset0 (i32.add (get_global $memstart) (get_local $offset0))) (i64.store\n      (i32.add (get_global $sp) (i32.const -256))\n      (i64.extend_u/i32\n        (i32.eqz (call $callCode(call $check_overflow_i64\n          (i64.load (i32.add (get_global $sp) (i32.const 0)))\n          (i64.load (i32.add (get_global $sp) (i32.const 8)))\n          (i64.load (i32.add (get_global $sp) (i32.const 16)))\n          (i64.load (i32.add (get_global $sp) (i32.const 24))))(i32.add (get_global $sp) (i32.const -32))(i32.add (get_global $sp) (i32.const -64))(get_local $offset0)(get_local $length0)(get_local $callback)) ;; flip CALL result from EEI to EVM convention (0 -> 1, 1,2,.. -> 1)\n      )))\n    ;; zero out mem\n    (i64.store (i32.add (get_global $sp) (i32.const -232)) (i64.const 0))\n    (i64.store (i32.add (get_global $sp) (i32.const -240)) (i64.const 0))\n    (i64.store (i32.add (get_global $sp) (i32.const -248)) (i64.const 0)))",
+    "imports": "(import \"ethereum\" \"callCode\" (func $callCode (param i64 i32 i32 i32 i32 i32 i32 i32) (result i32)))"
   },
   "DELEGATECALL": {
-    "wast": ";; generated by ./wasm/generateInterface.js\n(func $DELEGATECALL (param $callback i32)(local $offset0 i32)(local $length0 i32)(local $offset1 i32)(local $length1 i32) (set_local $offset0 (call $check_overflow\n          (i64.load (i32.add (get_global $sp) (i32.const -96)))\n          (i64.load (i32.add (get_global $sp) (i32.const -88)))\n          (i64.load (i32.add (get_global $sp) (i32.const -80)))\n          (i64.load (i32.add (get_global $sp) (i32.const -72)))))(set_local $length0 (call $check_overflow\n          (i64.load (i32.add (get_global $sp) (i32.const -128)))\n          (i64.load (i32.add (get_global $sp) (i32.const -120)))\n          (i64.load (i32.add (get_global $sp) (i32.const -112)))\n          (i64.load (i32.add (get_global $sp) (i32.const -104)))))\n    (call $memusegas (get_local $offset0) (get_local $length0))\n    (set_local $offset0 (i32.add (get_global $memstart) (get_local $offset0)))(set_local $offset1 (call $check_overflow\n          (i64.load (i32.add (get_global $sp) (i32.const -160)))\n          (i64.load (i32.add (get_global $sp) (i32.const -152)))\n          (i64.load (i32.add (get_global $sp) (i32.const -144)))\n          (i64.load (i32.add (get_global $sp) (i32.const -136)))))(set_local $length1 (call $check_overflow\n          (i64.load (i32.add (get_global $sp) (i32.const -192)))\n          (i64.load (i32.add (get_global $sp) (i32.const -184)))\n          (i64.load (i32.add (get_global $sp) (i32.const -176)))\n          (i64.load (i32.add (get_global $sp) (i32.const -168)))))\n    (call $memusegas (get_local $offset1) (get_local $length1))\n    (set_local $offset1 (i32.add (get_global $memstart) (get_local $offset1))) (i64.store\n      (i32.add (get_global $sp) (i32.const -192))\n      (i64.extend_u/i32\n        (i32.eqz (call $callDelegate(call $check_overflow\n          (i64.load (i32.add (get_global $sp) (i32.const 0)))\n          (i64.load (i32.add (get_global $sp) (i32.const 8)))\n          (i64.load (i32.add (get_global $sp) (i32.const 16)))\n          (i64.load (i32.add (get_global $sp) (i32.const 24))))(i32.add (get_global $sp) (i32.const -32))(i32.add (get_global $sp) (i32.const -64))(get_local $offset0)(get_local $length0)(get_local $offset1)(get_local $length1)(get_local $callback)) ;; flip CALL result from EEI to EVM convention (0 -> 1, 1,2,.. -> 1)\n      )))\n    ;; zero out mem\n    (i64.store (i32.add (get_global $sp) (i32.const -168)) (i64.const 0))\n    (i64.store (i32.add (get_global $sp) (i32.const -176)) (i64.const 0))\n    (i64.store (i32.add (get_global $sp) (i32.const -184)) (i64.const 0)))",
-    "imports": "(import \"ethereum\" \"callDelegate\" (func $callDelegate (param i32 i32 i32 i32 i32 i32 i32 i32) (result i32)))"
+    "wast": ";; generated by ./wasm/generateInterface.js\n(func $DELEGATECALL (param $callback i32)(local $offset0 i32)(local $length0 i32)(local $offset1 i32)(local $length1 i32) (set_local $offset0 (call $check_overflow\n          (i64.load (i32.add (get_global $sp) (i32.const -96)))\n          (i64.load (i32.add (get_global $sp) (i32.const -88)))\n          (i64.load (i32.add (get_global $sp) (i32.const -80)))\n          (i64.load (i32.add (get_global $sp) (i32.const -72)))))(set_local $length0 (call $check_overflow\n          (i64.load (i32.add (get_global $sp) (i32.const -128)))\n          (i64.load (i32.add (get_global $sp) (i32.const -120)))\n          (i64.load (i32.add (get_global $sp) (i32.const -112)))\n          (i64.load (i32.add (get_global $sp) (i32.const -104)))))\n    (call $memusegas (get_local $offset0) (get_local $length0))\n    (set_local $offset0 (i32.add (get_global $memstart) (get_local $offset0)))(set_local $offset1 (call $check_overflow\n          (i64.load (i32.add (get_global $sp) (i32.const -160)))\n          (i64.load (i32.add (get_global $sp) (i32.const -152)))\n          (i64.load (i32.add (get_global $sp) (i32.const -144)))\n          (i64.load (i32.add (get_global $sp) (i32.const -136)))))(set_local $length1 (call $check_overflow\n          (i64.load (i32.add (get_global $sp) (i32.const -192)))\n          (i64.load (i32.add (get_global $sp) (i32.const -184)))\n          (i64.load (i32.add (get_global $sp) (i32.const -176)))\n          (i64.load (i32.add (get_global $sp) (i32.const -168)))))\n    (call $memusegas (get_local $offset1) (get_local $length1))\n    (set_local $offset1 (i32.add (get_global $memstart) (get_local $offset1))) (i64.store\n      (i32.add (get_global $sp) (i32.const -320))\n      (i64.extend_u/i32\n        (i32.eqz (call $callDelegate(call $check_overflow_i64\n          (i64.load (i32.add (get_global $sp) (i32.const 0)))\n          (i64.load (i32.add (get_global $sp) (i32.const 8)))\n          (i64.load (i32.add (get_global $sp) (i32.const 16)))\n          (i64.load (i32.add (get_global $sp) (i32.const 24))))(i32.add (get_global $sp) (i32.const -32))(i32.add (get_global $sp) (i32.const -64))(get_local $offset0)(get_local $length0)(get_local $offset1)(get_local $length1)(get_local $callback)) ;; flip CALL result from EEI to EVM convention (0 -> 1, 1,2,.. -> 1)\n      )))\n    ;; zero out mem\n    (i64.store (i32.add (get_global $sp) (i32.const -296)) (i64.const 0))\n    (i64.store (i32.add (get_global $sp) (i32.const -304)) (i64.const 0))\n    (i64.store (i32.add (get_global $sp) (i32.const -312)) (i64.const 0)))",
+    "imports": "(import \"ethereum\" \"callDelegate\" (func $callDelegate (param i64 i32 i32 i32 i32 i32 i32 i32 i32 i32) (result i32)))"
   },
   "SSTORE": {
     "wast": ";; generated by ./wasm/generateInterface.js\n(func $SSTORE (param $callback i32)  (call $storageStore(get_global $sp)(i32.add (get_global $sp) (i32.const -32))(get_local $callback)))",
diff --git a/wasm/wast.json b/wasm/wast.json
index 7ebaa773..ead07787 100644
--- a/wasm/wast.json
+++ b/wasm/wast.json
@@ -88,16 +88,16 @@
     "imports": "(import \"ethereum\" \"create\" (func $create (param i32 i32 i32 i32) ))"
   },
   "CALL": {
-    "wast": ";; generated by ./wasm/generateInterface.js\n(func $CALL (local $offset0 i32)(local $length0 i32) (set_local $offset0 (call $check_overflow\n          (i64.load (i32.add (get_global $sp) (i32.const -96)))\n          (i64.load (i32.add (get_global $sp) (i32.const -88)))\n          (i64.load (i32.add (get_global $sp) (i32.const -80)))\n          (i64.load (i32.add (get_global $sp) (i32.const -72)))))(set_local $length0 (call $check_overflow\n          (i64.load (i32.add (get_global $sp) (i32.const -128)))\n          (i64.load (i32.add (get_global $sp) (i32.const -120)))\n          (i64.load (i32.add (get_global $sp) (i32.const -112)))\n          (i64.load (i32.add (get_global $sp) (i32.const -104)))))\n    (call $memusegas (get_local $offset0) (get_local $length0))\n    (set_local $offset0 (i32.add (get_global $memstart) (get_local $offset0))) (i64.store\n      (i32.add (get_global $sp) (i32.const -192))\n      (i64.extend_u/i32\n        (i32.eqz (call $call(call $check_overflow_i64\n          (i64.load (i32.add (get_global $sp) (i32.const 0)))\n          (i64.load (i32.add (get_global $sp) (i32.const 8)))\n          (i64.load (i32.add (get_global $sp) (i32.const 16)))\n          (i64.load (i32.add (get_global $sp) (i32.const 24))))(i32.add (get_global $sp) (i32.const -32))(i32.add (get_global $sp) (i32.const -64))(get_local $offset0)(get_local $length0)) ;; flip CALL result from EEI to EVM convention (0 -> 1, 1,2,.. -> 1)\n      )))\n    ;; zero out mem\n    (i64.store (i32.add (get_global $sp) (i32.const -168)) (i64.const 0))\n    (i64.store (i32.add (get_global $sp) (i32.const -176)) (i64.const 0))\n    (i64.store (i32.add (get_global $sp) (i32.const -184)) (i64.const 0)))",
-    "imports": "(import \"ethereum\" \"call\" (func $call (param i64 i32 i32 i32 i32) (result i32)))"
+    "wast": ";; generated by ./wasm/generateInterface.js\n(func $CALL (local $offset0 i32)(local $length0 i32) (set_local $offset0 (call $check_overflow\n          (i64.load (i32.add (get_global $sp) (i32.const -96)))\n          (i64.load (i32.add (get_global $sp) (i32.const -88)))\n          (i64.load (i32.add (get_global $sp) (i32.const -80)))\n          (i64.load (i32.add (get_global $sp) (i32.const -72)))))(set_local $length0 (call $check_overflow\n          (i64.load (i32.add (get_global $sp) (i32.const -128)))\n          (i64.load (i32.add (get_global $sp) (i32.const -120)))\n          (i64.load (i32.add (get_global $sp) (i32.const -112)))\n          (i64.load (i32.add (get_global $sp) (i32.const -104)))))\n    (call $memusegas (get_local $offset0) (get_local $length0))\n    (set_local $offset0 (i32.add (get_global $memstart) (get_local $offset0))) (i64.store\n      (i32.add (get_global $sp) (i32.const -256))\n      (i64.extend_u/i32\n        (i32.eqz (call $call(call $check_overflow_i64\n          (i64.load (i32.add (get_global $sp) (i32.const 0)))\n          (i64.load (i32.add (get_global $sp) (i32.const 8)))\n          (i64.load (i32.add (get_global $sp) (i32.const 16)))\n          (i64.load (i32.add (get_global $sp) (i32.const 24))))(i32.add (get_global $sp) (i32.const -32))(i32.add (get_global $sp) (i32.const -64))(get_local $offset0)(get_local $length0)) ;; flip CALL result from EEI to EVM convention (0 -> 1, 1,2,.. -> 1)\n      )))\n    ;; zero out mem\n    (i64.store (i32.add (get_global $sp) (i32.const -232)) (i64.const 0))\n    (i64.store (i32.add (get_global $sp) (i32.const -240)) (i64.const 0))\n    (i64.store (i32.add (get_global $sp) (i32.const -248)) (i64.const 0)))",
+    "imports": "(import \"ethereum\" \"call\" (func $call (param i64 i32 i32 i32 i32 i32 i32) (result i32)))"
   },
   "CALLCODE": {
-    "wast": ";; generated by ./wasm/generateInterface.js\n(func $CALLCODE (local $offset0 i32)(local $length0 i32) (set_local $offset0 (call $check_overflow\n          (i64.load (i32.add (get_global $sp) (i32.const -96)))\n          (i64.load (i32.add (get_global $sp) (i32.const -88)))\n          (i64.load (i32.add (get_global $sp) (i32.const -80)))\n          (i64.load (i32.add (get_global $sp) (i32.const -72)))))(set_local $length0 (call $check_overflow\n          (i64.load (i32.add (get_global $sp) (i32.const -128)))\n          (i64.load (i32.add (get_global $sp) (i32.const -120)))\n          (i64.load (i32.add (get_global $sp) (i32.const -112)))\n          (i64.load (i32.add (get_global $sp) (i32.const -104)))))\n    (call $memusegas (get_local $offset0) (get_local $length0))\n    (set_local $offset0 (i32.add (get_global $memstart) (get_local $offset0))) (i64.store\n      (i32.add (get_global $sp) (i32.const -192))\n      (i64.extend_u/i32\n        (i32.eqz (call $callCode(call $check_overflow_i64\n          (i64.load (i32.add (get_global $sp) (i32.const 0)))\n          (i64.load (i32.add (get_global $sp) (i32.const 8)))\n          (i64.load (i32.add (get_global $sp) (i32.const 16)))\n          (i64.load (i32.add (get_global $sp) (i32.const 24))))(i32.add (get_global $sp) (i32.const -32))(i32.add (get_global $sp) (i32.const -64))(get_local $offset0)(get_local $length0)) ;; flip CALL result from EEI to EVM convention (0 -> 1, 1,2,.. -> 1)\n      )))\n    ;; zero out mem\n    (i64.store (i32.add (get_global $sp) (i32.const -168)) (i64.const 0))\n    (i64.store (i32.add (get_global $sp) (i32.const -176)) (i64.const 0))\n    (i64.store (i32.add (get_global $sp) (i32.const -184)) (i64.const 0)))",
-    "imports": "(import \"ethereum\" \"callCode\" (func $callCode (param i64 i32 i32 i32 i32) (result i32)))"
+    "wast": ";; generated by ./wasm/generateInterface.js\n(func $CALLCODE (local $offset0 i32)(local $length0 i32) (set_local $offset0 (call $check_overflow\n          (i64.load (i32.add (get_global $sp) (i32.const -96)))\n          (i64.load (i32.add (get_global $sp) (i32.const -88)))\n          (i64.load (i32.add (get_global $sp) (i32.const -80)))\n          (i64.load (i32.add (get_global $sp) (i32.const -72)))))(set_local $length0 (call $check_overflow\n          (i64.load (i32.add (get_global $sp) (i32.const -128)))\n          (i64.load (i32.add (get_global $sp) (i32.const -120)))\n          (i64.load (i32.add (get_global $sp) (i32.const -112)))\n          (i64.load (i32.add (get_global $sp) (i32.const -104)))))\n    (call $memusegas (get_local $offset0) (get_local $length0))\n    (set_local $offset0 (i32.add (get_global $memstart) (get_local $offset0))) (i64.store\n      (i32.add (get_global $sp) (i32.const -256))\n      (i64.extend_u/i32\n        (i32.eqz (call $callCode(call $check_overflow_i64\n          (i64.load (i32.add (get_global $sp) (i32.const 0)))\n          (i64.load (i32.add (get_global $sp) (i32.const 8)))\n          (i64.load (i32.add (get_global $sp) (i32.const 16)))\n          (i64.load (i32.add (get_global $sp) (i32.const 24))))(i32.add (get_global $sp) (i32.const -32))(i32.add (get_global $sp) (i32.const -64))(get_local $offset0)(get_local $length0)) ;; flip CALL result from EEI to EVM convention (0 -> 1, 1,2,.. -> 1)\n      )))\n    ;; zero out mem\n    (i64.store (i32.add (get_global $sp) (i32.const -232)) (i64.const 0))\n    (i64.store (i32.add (get_global $sp) (i32.const -240)) (i64.const 0))\n    (i64.store (i32.add (get_global $sp) (i32.const -248)) (i64.const 0)))",
+    "imports": "(import \"ethereum\" \"callCode\" (func $callCode (param i64 i32 i32 i32 i32 i32 i32) (result i32)))"
   },
   "DELEGATECALL": {
-    "wast": ";; generated by ./wasm/generateInterface.js\n(func $DELEGATECALL (local $offset0 i32)(local $length0 i32)(local $offset1 i32)(local $length1 i32) (set_local $offset0 (call $check_overflow\n          (i64.load (i32.add (get_global $sp) (i32.const -96)))\n          (i64.load (i32.add (get_global $sp) (i32.const -88)))\n          (i64.load (i32.add (get_global $sp) (i32.const -80)))\n          (i64.load (i32.add (get_global $sp) (i32.const -72)))))(set_local $length0 (call $check_overflow\n          (i64.load (i32.add (get_global $sp) (i32.const -128)))\n          (i64.load (i32.add (get_global $sp) (i32.const -120)))\n          (i64.load (i32.add (get_global $sp) (i32.const -112)))\n          (i64.load (i32.add (get_global $sp) (i32.const -104)))))\n    (call $memusegas (get_local $offset0) (get_local $length0))\n    (set_local $offset0 (i32.add (get_global $memstart) (get_local $offset0)))(set_local $offset1 (call $check_overflow\n          (i64.load (i32.add (get_global $sp) (i32.const -160)))\n          (i64.load (i32.add (get_global $sp) (i32.const -152)))\n          (i64.load (i32.add (get_global $sp) (i32.const -144)))\n          (i64.load (i32.add (get_global $sp) (i32.const -136)))))(set_local $length1 (call $check_overflow\n          (i64.load (i32.add (get_global $sp) (i32.const -192)))\n          (i64.load (i32.add (get_global $sp) (i32.const -184)))\n          (i64.load (i32.add (get_global $sp) (i32.const -176)))\n          (i64.load (i32.add (get_global $sp) (i32.const -168)))))\n    (call $memusegas (get_local $offset1) (get_local $length1))\n    (set_local $offset1 (i32.add (get_global $memstart) (get_local $offset1))) (i64.store\n      (i32.add (get_global $sp) (i32.const -192))\n      (i64.extend_u/i32\n        (i32.eqz (call $callDelegate(call $check_overflow\n          (i64.load (i32.add (get_global $sp) (i32.const 0)))\n          (i64.load (i32.add (get_global $sp) (i32.const 8)))\n          (i64.load (i32.add (get_global $sp) (i32.const 16)))\n          (i64.load (i32.add (get_global $sp) (i32.const 24))))(i32.add (get_global $sp) (i32.const -32))(i32.add (get_global $sp) (i32.const -64))(get_local $offset0)(get_local $length0)(get_local $offset1)(get_local $length1)) ;; flip CALL result from EEI to EVM convention (0 -> 1, 1,2,.. -> 1)\n      )))\n    ;; zero out mem\n    (i64.store (i32.add (get_global $sp) (i32.const -168)) (i64.const 0))\n    (i64.store (i32.add (get_global $sp) (i32.const -176)) (i64.const 0))\n    (i64.store (i32.add (get_global $sp) (i32.const -184)) (i64.const 0)))",
-    "imports": "(import \"ethereum\" \"callDelegate\" (func $callDelegate (param i32 i32 i32 i32 i32 i32 i32) (result i32)))"
+    "wast": ";; generated by ./wasm/generateInterface.js\n(func $DELEGATECALL (local $offset0 i32)(local $length0 i32)(local $offset1 i32)(local $length1 i32) (set_local $offset0 (call $check_overflow\n          (i64.load (i32.add (get_global $sp) (i32.const -96)))\n          (i64.load (i32.add (get_global $sp) (i32.const -88)))\n          (i64.load (i32.add (get_global $sp) (i32.const -80)))\n          (i64.load (i32.add (get_global $sp) (i32.const -72)))))(set_local $length0 (call $check_overflow\n          (i64.load (i32.add (get_global $sp) (i32.const -128)))\n          (i64.load (i32.add (get_global $sp) (i32.const -120)))\n          (i64.load (i32.add (get_global $sp) (i32.const -112)))\n          (i64.load (i32.add (get_global $sp) (i32.const -104)))))\n    (call $memusegas (get_local $offset0) (get_local $length0))\n    (set_local $offset0 (i32.add (get_global $memstart) (get_local $offset0)))(set_local $offset1 (call $check_overflow\n          (i64.load (i32.add (get_global $sp) (i32.const -160)))\n          (i64.load (i32.add (get_global $sp) (i32.const -152)))\n          (i64.load (i32.add (get_global $sp) (i32.const -144)))\n          (i64.load (i32.add (get_global $sp) (i32.const -136)))))(set_local $length1 (call $check_overflow\n          (i64.load (i32.add (get_global $sp) (i32.const -192)))\n          (i64.load (i32.add (get_global $sp) (i32.const -184)))\n          (i64.load (i32.add (get_global $sp) (i32.const -176)))\n          (i64.load (i32.add (get_global $sp) (i32.const -168)))))\n    (call $memusegas (get_local $offset1) (get_local $length1))\n    (set_local $offset1 (i32.add (get_global $memstart) (get_local $offset1))) (i64.store\n      (i32.add (get_global $sp) (i32.const -320))\n      (i64.extend_u/i32\n        (i32.eqz (call $callDelegate(call $check_overflow_i64\n          (i64.load (i32.add (get_global $sp) (i32.const 0)))\n          (i64.load (i32.add (get_global $sp) (i32.const 8)))\n          (i64.load (i32.add (get_global $sp) (i32.const 16)))\n          (i64.load (i32.add (get_global $sp) (i32.const 24))))(i32.add (get_global $sp) (i32.const -32))(i32.add (get_global $sp) (i32.const -64))(get_local $offset0)(get_local $length0)(get_local $offset1)(get_local $length1)) ;; flip CALL result from EEI to EVM convention (0 -> 1, 1,2,.. -> 1)\n      )))\n    ;; zero out mem\n    (i64.store (i32.add (get_global $sp) (i32.const -296)) (i64.const 0))\n    (i64.store (i32.add (get_global $sp) (i32.const -304)) (i64.const 0))\n    (i64.store (i32.add (get_global $sp) (i32.const -312)) (i64.const 0)))",
+    "imports": "(import \"ethereum\" \"callDelegate\" (func $callDelegate (param i64 i32 i32 i32 i32 i32 i32 i32 i32) (result i32)))"
   },
   "SSTORE": {
     "wast": ";; generated by ./wasm/generateInterface.js\n(func $SSTORE   (call $storageStore(get_global $sp)(i32.add (get_global $sp) (i32.const -32))))",