diff --git a/include/evm2wasm.h b/include/evm2wasm.h
index 8a0afd0b..2671c891 100644
--- a/include/evm2wasm.h
+++ b/include/evm2wasm.h
@@ -74,6 +74,7 @@ enum class opcodeEnum
     CALLCODE,
     RETURN,
     DELEGATECALL,
+    STATICCALL,
     SELFDESTRUCT,
     INVALID,
     bswap_i32,
@@ -266,6 +267,7 @@ static std::map<int, std::tuple<opcodeEnum, int, int, int>> codes = {
     {0xf2, Opcode{opcodeEnum::CALLCODE, 0, 7, 1}},
     {0xf3, Opcode{opcodeEnum::RETURN, 0, 2, 0}},
     {0xf4, Opcode{opcodeEnum::DELEGATECALL, 0, 6, 1}},
+    {0xfa, Opcode{opcodeEnum::STATICCALL, 0, 6, 1}},
 
     // "0x70", range - other
     {0xff, Opcode{opcodeEnum::SELFDESTRUCT, 0, 1, 0}}};
@@ -313,11 +315,14 @@ static std::map<opcodeEnum, std::vector<opcodeEnum>> depMap = {
             opcodeEnum::check_overflow, opcodeEnum::memset, opcodeEnum::callback_32}},
     {opcodeEnum::DELEGATECALL, {opcodeEnum::callback, opcodeEnum::memusegas,
                                    opcodeEnum::check_overflow, opcodeEnum::memset,
-                                       opcodeEnum::check_overflow_i64}},
+                                       opcodeEnum::check_overflow_i64, opcodeEnum::callback_32}},
     {opcodeEnum::CALLCODE,
         {opcodeEnum::bswap_m256, opcodeEnum::callback, opcodeEnum::memusegas,
             opcodeEnum::check_overflow, opcodeEnum::memset, opcodeEnum::callback_32,
                            opcodeEnum::check_overflow_i64}},
+    {opcodeEnum::STATICCALL, {opcodeEnum::callback, opcodeEnum::memusegas,
+                                   opcodeEnum::check_overflow, opcodeEnum::memset,
+                                       opcodeEnum::check_overflow_i64, opcodeEnum::callback_32}},
     {opcodeEnum::CREATE, {opcodeEnum::bswap_m256, opcodeEnum::bswap_m160, opcodeEnum::callback_160,
                              opcodeEnum::memusegas, opcodeEnum::check_overflow}},
     {opcodeEnum::RETURN, {opcodeEnum::memusegas, opcodeEnum::check_overflow}},
diff --git a/include/wast-async.h b/include/wast-async.h
index b0e90bbf..d9ab75e5 100644
--- a/include/wast-async.h
+++ b/include/wast-async.h
@@ -130,8 +130,13 @@ namespace evm2wasm
   }
 },{
   opcodeEnum::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_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 -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 i64 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) (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 $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 $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 i64 i32 i32 i32 i32 i32) (result i32)))"
+  }
+},{
+  opcodeEnum::STATICCALL, {
+    .wast = ";; generated by ./wasm/generateInterface.js\n(func $STATICCALL (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 -64)))\n          (i64.load (i32.add (get_global $sp) (i32.const -56)))\n          (i64.load (i32.add (get_global $sp) (i32.const -48)))\n          (i64.load (i32.add (get_global $sp) (i32.const -40)))))(set_local $length0 (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)))))\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 -160))\n      (i64.extend_u/i32\n        (i32.eqz (call $callStatic(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))(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 -136)) (i64.const 0))\n    (i64.store (i32.add (get_global $sp) (i32.const -144)) (i64.const 0))\n    (i64.store (i32.add (get_global $sp) (i32.const -152)) (i64.const 0)))",
+    .imports = "(import \"ethereum\" \"callStatic\" (func $callStatic (param i64 i32 i32 i32 i32) (result i32)))"
   }
 },{
   opcodeEnum::SSTORE, {
diff --git a/include/wast.h b/include/wast.h
index e9c0f38c..9797203a 100644
--- a/include/wast.h
+++ b/include/wast.h
@@ -130,8 +130,13 @@ namespace evm2wasm
   }
 },{
   opcodeEnum::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_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 -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 i64 i32 i32 i32 i32 i32 i32) (result i32)))"
+    .wast = ";; generated by ./wasm/generateInterface.js\n(func $DELEGATECALL (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 $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)) ;; 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 i64 i32 i32 i32 i32) (result i32)))"
+  }
+},{
+  opcodeEnum::STATICCALL, {
+    .wast = ";; generated by ./wasm/generateInterface.js\n(func $STATICCALL (local $offset0 i32)(local $length0 i32) (set_local $offset0 (call $check_overflow\n          (i64.load (i32.add (get_global $sp) (i32.const -64)))\n          (i64.load (i32.add (get_global $sp) (i32.const -56)))\n          (i64.load (i32.add (get_global $sp) (i32.const -48)))\n          (i64.load (i32.add (get_global $sp) (i32.const -40)))))(set_local $length0 (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)))))\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 -160))\n      (i64.extend_u/i32\n        (i32.eqz (call $callStatic(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))(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 -136)) (i64.const 0))\n    (i64.store (i32.add (get_global $sp) (i32.const -144)) (i64.const 0))\n    (i64.store (i32.add (get_global $sp) (i32.const -152)) (i64.const 0)))",
+    .imports = "(import \"ethereum\" \"callStatic\" (func $callStatic (param i64 i32 i32 i32) (result i32)))"
   }
 },{
   opcodeEnum::SSTORE, {
diff --git a/index.js b/index.js
index 76c98cea..256b0fcd 100644
--- a/index.js
+++ b/index.js
@@ -38,7 +38,8 @@ const depMap = new Map([
   ['BLOCKHASH', ['check_overflow', 'callback_256']],
   ['SHA3', ['memusegas', 'bswap_m256', 'check_overflow', 'keccak']],
   ['CALL', ['bswap_m256', 'memusegas', 'check_overflow_i64', 'check_overflow', 'memset', 'callback_32']],
-  ['DELEGATECALL', ['callback', 'memusegas', 'check_overflow_i64', 'check_overflow', 'memset']],
+  ['DELEGATECALL', ['callback', 'memusegas', 'check_overflow_i64', 'check_overflow', 'memset', 'callback_32']],
+  ['STATICCALL', ['callback', 'memusegas', 'check_overflow_i64', 'check_overflow', 'memset', 'callback_32']],
   ['CALLCODE', ['bswap_m256', 'callback', 'memusegas', 'check_overflow_i64', 'check_overflow', 'check_overflow_i64', 'memset', 'callback_32']],
   ['CREATE', ['bswap_m256', 'bswap_m160', 'callback_160', 'memusegas', 'check_overflow']],
   ['RETURN', ['memusegas', 'check_overflow']],
diff --git a/opcodes.js b/opcodes.js
index f02c5371..edd3a6af 100644
--- a/opcodes.js
+++ b/opcodes.js
@@ -147,6 +147,7 @@ const codes = {
   0xf2: ['CALLCODE', 0, 7, 1],
   0xf3: ['RETURN', 0, 2, 0],
   0xf4: ['DELEGATECALL', 0, 6, 1],
+  0xfa: ['STATICCALL', 0, 6, 1],
 
   // '0x70', range - other
   0xff: ['SELFDESTRUCT', 0, 1, 0]
diff --git a/wasm/generateInterface.js b/wasm/generateInterface.js
index a6532b41..06404d1b 100644
--- a/wasm/generateInterface.js
+++ b/wasm/generateInterface.js
@@ -152,7 +152,13 @@ const interfaceManifest = {
   DELEGATECALL: {
     name: 'callDelegate',
     async: true,
-    input: ['gasLimit', 'address', 'i128', 'readOffset', 'length', 'writeOffset', 'length'],
+    input: ['gasLimit', 'address', 'i128', 'readOffset', 'length'],
+    output: ['i32']
+  },
+  STATICCALL: {
+    name: 'callStatic',
+    async: true,
+    input: ['gasLimit', 'address', 'readOffset', 'length'],
     output: ['i32']
   },
   SSTORE: {
@@ -289,7 +295,7 @@ function generateManifest (interfaceManifest, opts) {
         locals += `(local $offset${numOfLocals} i32)`
         body += `(set_local $offset${numOfLocals} ${checkOverflowStackItem256(spOffset)})`
         call += `(get_local $offset${numOfLocals})`
-      } else if (input === 'length' && (opcode === 'CALL' || opcode === 'CALLCODE')) {
+      } else if (input === 'length' && (opcode === 'CALL' || opcode === 'CALLCODE' || opcode === 'DELEGATECALL' || opcode === 'STATICCALL')) {
         // CALLs in EVM have 7 arguments
         // but in ewasm CALLs only have 5 arguments
         // so delete the bottom two stack elements, after processing the 5th argument
@@ -309,7 +315,7 @@ function generateManifest (interfaceManifest, opts) {
 
         // delete 7th stack element
         spOffset--
-      } else if (input === 'length' && (opcode !== 'CALL' && opcode !== 'CALLCODE')) {
+      } else if (input === 'length' && (opcode !== 'CALL' && opcode !== 'CALLCODE' && opcode !== 'DELEGATECALL' && opcode !== 'STATICCALL')) {
         locals += `(local $length${numOfLocals} i32)`
         body += `(set_local $length${numOfLocals} ${checkOverflowStackItem256(spOffset)})`
 
@@ -368,7 +374,7 @@ function generateManifest (interfaceManifest, opts) {
         call += '(get_local $callback)'
       }
 
-      if (opcode === 'CALL' || opcode === 'CALLCODE' || opcode === 'DELEGATECALL') {
+      if (opcode === 'CALL' || opcode === 'CALLCODE' || opcode === 'DELEGATECALL' || opcode === 'STATICCALL') {
         call =
           `(i64.store
       (i32.add (get_global $sp) (i32.const ${spOffset * 32}))
diff --git a/wasm/wast-async.json b/wasm/wast-async.json
index a54165a5..579542be 100644
--- a/wasm/wast-async.json
+++ b/wasm/wast-async.json
@@ -96,8 +96,12 @@
     "imports": "(import \"ethereum\" \"callCode\" (func $callCode (param i64 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_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 -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 i64 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) (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 $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 $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 i64 i32 i32 i32 i32 i32) (result i32)))"
+  },
+  "STATICCALL": {
+    "wast": ";; generated by ./wasm/generateInterface.js\n(func $STATICCALL (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 -64)))\n          (i64.load (i32.add (get_global $sp) (i32.const -56)))\n          (i64.load (i32.add (get_global $sp) (i32.const -48)))\n          (i64.load (i32.add (get_global $sp) (i32.const -40)))))(set_local $length0 (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)))))\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 -160))\n      (i64.extend_u/i32\n        (i32.eqz (call $callStatic(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))(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 -136)) (i64.const 0))\n    (i64.store (i32.add (get_global $sp) (i32.const -144)) (i64.const 0))\n    (i64.store (i32.add (get_global $sp) (i32.const -152)) (i64.const 0)))",
+    "imports": "(import \"ethereum\" \"callStatic\" (func $callStatic (param i64 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 85e4bf1e..9dd332b0 100644
--- a/wasm/wast.json
+++ b/wasm/wast.json
@@ -96,8 +96,12 @@
     "imports": "(import \"ethereum\" \"callCode\" (func $callCode (param i64 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_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 -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 i64 i32 i32 i32 i32 i32 i32) (result i32)))"
+    "wast": ";; generated by ./wasm/generateInterface.js\n(func $DELEGATECALL (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 $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)) ;; 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 i64 i32 i32 i32 i32) (result i32)))"
+  },
+  "STATICCALL": {
+    "wast": ";; generated by ./wasm/generateInterface.js\n(func $STATICCALL (local $offset0 i32)(local $length0 i32) (set_local $offset0 (call $check_overflow\n          (i64.load (i32.add (get_global $sp) (i32.const -64)))\n          (i64.load (i32.add (get_global $sp) (i32.const -56)))\n          (i64.load (i32.add (get_global $sp) (i32.const -48)))\n          (i64.load (i32.add (get_global $sp) (i32.const -40)))))(set_local $length0 (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)))))\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 -160))\n      (i64.extend_u/i32\n        (i32.eqz (call $callStatic(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))(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 -136)) (i64.const 0))\n    (i64.store (i32.add (get_global $sp) (i32.const -144)) (i64.const 0))\n    (i64.store (i32.add (get_global $sp) (i32.const -152)) (i64.const 0)))",
+    "imports": "(import \"ethereum\" \"callStatic\" (func $callStatic (param i64 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))))",