Add istambul opcodes.

Author: palkeo

pano/vm.py

@@ -543,6 +543,9 @@ def trace_extend(l):
             off = sub_op(256, to_bytes(num))
             stack.append(mask_op(val, 8, off, shr=off))
 
+        elif op == 'selfbalance':
+            stack.append(('balance', 'address',))
+
         elif op == 'balance':
             addr = stack.pop()
             if opcode(addr) == 'mask_shl' and addr[:4] == ('mask_shl', 160, 0, 0):
@@ -768,7 +771,7 @@ def trace_extend(l):
         elif op in ('extcodesize', 'extcodehash', 'blockhash'):
             stack.append((op, stack.pop(),))
 
-        elif op in ['callvalue', 'caller', 'address', 'number',  'gas', 'origin', 'timestamp',
+        elif op in ['callvalue', 'caller', 'address', 'number',  'gas', 'origin', 'timestamp', 'chainid',
                         'difficulty', 'gasprice', 'coinbase', 'gaslimit', 'calldatasize', 'returndatasize']:
             stack.append(op)
 

utils/opcode_dict.py

@@ -3,7 +3,7 @@
 
     opcode_dict is used by the loader to disassemble a contract
     stack_diffs is used by vm.apply_stack to test the proper parsing of opcodes
-  
+
 '''
 
 opcode_dict = {
@@ -78,6 +78,8 @@
     0x43: 'number',
     0x44: 'difficulty',
     0x45: 'gaslimit',
+    0x46: 'chainid',
+    0x47: 'selfbalance',
 
 
     #
@@ -245,6 +247,8 @@
   "balance": 0,
   "origin": 1,
   "address": 1,
+  "selfbalance": 1,
+  "chainid": 1,
   "call": -6,
   "callcode": -6,
   "delegatecall": -5,
@@ -259,7 +263,6 @@
   "gasprice": 1,
   "extcodesize": 0,
   "extcodehash": 0,
-
   "extcodecopy": -4,
   "returndatasize": 1,
   "returndatacopy": -3,
@@ -355,4 +358,4 @@
   "dup16": 1,
   "swap16": 0
 
-}
+}