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@ -29,8 +29,9 @@ import ( |
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) |
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var ( |
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bigZero = new(big.Int) |
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errWriteProtection = errors.New("evm: write protection") |
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bigZero = new(big.Int) |
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errWriteProtection = errors.New("evm: write protection") |
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errReturnDataOutOfBounds = errors.New("evm: return data out of bounds") |
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) |
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func opAdd(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) { |
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@ -242,6 +243,7 @@ func opAnd(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack *Stac |
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evm.interpreter.intPool.put(y) |
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return nil, nil |
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} |
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func opOr(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) { |
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x, y := stack.pop(), stack.pop() |
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stack.push(x.Or(x, y)) |
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@ -249,6 +251,7 @@ func opOr(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack *Stack |
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evm.interpreter.intPool.put(y) |
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return nil, nil |
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} |
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func opXor(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) { |
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x, y := stack.pop(), stack.pop() |
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stack.push(x.Xor(x, y)) |
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@ -268,6 +271,7 @@ func opByte(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack *Sta |
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evm.interpreter.intPool.put(th) |
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return nil, nil |
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} |
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func opAddmod(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) { |
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x, y, z := stack.pop(), stack.pop(), stack.pop() |
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if z.Cmp(bigZero) > 0 { |
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@ -281,6 +285,7 @@ func opAddmod(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack *S |
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evm.interpreter.intPool.put(y, z) |
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return nil, nil |
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} |
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func opMulmod(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) { |
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x, y, z := stack.pop(), stack.pop(), stack.pop() |
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if z.Cmp(bigZero) > 0 { |
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@ -338,25 +343,47 @@ func opCallValue(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack |
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return nil, nil |
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} |
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func opCalldataLoad(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) { |
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func opCallDataLoad(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) { |
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stack.push(new(big.Int).SetBytes(getDataBig(contract.Input, stack.pop(), big32))) |
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return nil, nil |
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} |
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func opCalldataSize(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) { |
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func opCallDataSize(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) { |
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stack.push(evm.interpreter.intPool.get().SetInt64(int64(len(contract.Input)))) |
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return nil, nil |
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} |
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func opCalldataCopy(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) { |
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func opCallDataCopy(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) { |
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var ( |
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memOffset = stack.pop() |
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dataOffset = stack.pop() |
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length = stack.pop() |
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) |
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memory.Set(memOffset.Uint64(), length.Uint64(), getDataBig(contract.Input, dataOffset, length)) |
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evm.interpreter.intPool.put(memOffset, dataOffset, length) |
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return nil, nil |
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} |
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func opReturnDataSize(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) { |
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stack.push(evm.interpreter.intPool.get().SetUint64(uint64(len(evm.interpreter.returnData)))) |
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return nil, nil |
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} |
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func opReturnDataCopy(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) { |
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var ( |
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mOff = stack.pop() |
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cOff = stack.pop() |
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l = stack.pop() |
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memOffset = stack.pop() |
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dataOffset = stack.pop() |
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length = stack.pop() |
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) |
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memory.Set(mOff.Uint64(), l.Uint64(), getDataBig(contract.Input, cOff, l)) |
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defer evm.interpreter.intPool.put(memOffset, dataOffset, length) |
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end := new(big.Int).Add(dataOffset, length) |
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if end.BitLen() > 64 || uint64(len(evm.interpreter.returnData)) < end.Uint64() { |
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return nil, errReturnDataOutOfBounds |
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} |
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memory.Set(memOffset.Uint64(), length.Uint64(), evm.interpreter.returnData[dataOffset.Uint64():end.Uint64()]) |
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evm.interpreter.intPool.put(mOff, cOff, l) |
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return nil, nil |
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} |
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@ -378,31 +405,28 @@ func opCodeSize(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack |
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func opCodeCopy(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) { |
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var ( |
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mOff = stack.pop() |
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cOff = stack.pop() |
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l = stack.pop() |
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memOffset = stack.pop() |
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codeOffset = stack.pop() |
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length = stack.pop() |
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) |
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codeCopy := getDataBig(contract.Code, cOff, l) |
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codeCopy := getDataBig(contract.Code, codeOffset, length) |
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memory.Set(memOffset.Uint64(), length.Uint64(), codeCopy) |
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memory.Set(mOff.Uint64(), l.Uint64(), codeCopy) |
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evm.interpreter.intPool.put(mOff, cOff, l) |
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evm.interpreter.intPool.put(memOffset, codeOffset, length) |
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return nil, nil |
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} |
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func opExtCodeCopy(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) { |
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var ( |
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addr = common.BigToAddress(stack.pop()) |
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mOff = stack.pop() |
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cOff = stack.pop() |
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l = stack.pop() |
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addr = common.BigToAddress(stack.pop()) |
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memOffset = stack.pop() |
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codeOffset = stack.pop() |
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length = stack.pop() |
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) |
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codeCopy := getDataBig(evm.StateDB.GetCode(addr), cOff, l) |
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memory.Set(mOff.Uint64(), l.Uint64(), codeCopy) |
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evm.interpreter.intPool.put(mOff, cOff, l) |
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codeCopy := getDataBig(evm.StateDB.GetCode(addr), codeOffset, length) |
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memory.Set(memOffset.Uint64(), length.Uint64(), codeCopy) |
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evm.interpreter.intPool.put(memOffset, codeOffset, length) |
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return nil, nil |
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} |
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@ -507,6 +531,7 @@ func opJump(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack *Sta |
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evm.interpreter.intPool.put(pos) |
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return nil, nil |
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} |
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func opJumpi(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) { |
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pos, cond := stack.pop(), stack.pop() |
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if cond.Sign() != 0 { |
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@ -522,6 +547,7 @@ func opJumpi(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack *St |
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evm.interpreter.intPool.put(pos, cond) |
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return nil, nil |
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} |
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func opJumpdest(pc *uint64, evm *EVM, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) { |
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return nil, nil |
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} |
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