Example to add two numbers using the Ethereum virtual Machine.

evm_add.py

from eth.vm.forks import (
    IstanbulVM,
)
from eth.vm import (
    opcode_values
)

from tests.core.opcodes.test_opcodes import (
    assemble,
    CANONICAL_ADDRESS_B,
    setup_computation,
)

code = assemble(
    opcode_values.PUSH1,
    0x1,
    opcode_values.PUSH1,
    0x1,
    opcode_values.ADD
)

computation = setup_computation(IstanbulVM, CANONICAL_ADDRESS_B, code)

comp = computation.apply_message(
    computation.state,
    computation.msg,
    computation.transaction_context,
)
result = comp.stack_pop1_any()
print(result)