def op_jmp(engine):
offset = engine.context.op_reader.read_int16()
offset = engine.context.get_instruction_pointer() + offset - 3
if offset < 0 or offset > len(engine.context.code):
return VMState.FAULT
f_value = True
if engine.op_code.value > ScriptOp.OP_JMP.value:
if PushData.evaluation_stack_count(engine) < 1:
return VMState.FAULT
f_value = PushData.pop_bool(engine)
print("pop_bool: ", f_value)
if engine.op_code == ScriptOp.OP_JMPIFNOT:
f_value = not f_value
if f_value:
engine.context.set_instruction_pointer(offset)
print("fvalue: ", f_value)
print("******get_instruction_pointer: ",
engine.context.get_instruction_pointer())
return VMState.NONE
def op_bool_zip(engine):
x2 = PushData.pop_bool(engine)
x1 = PushData.pop_bool(engine)
b = PushData.bool_zip(x2, x1, engine.op_code)
PushData.push_data(engine, b)
return VMState.NONE
def op_not(engine):
x = PushData.pop_bool(engine)
PushData.push_data(engine, not x)
return VMState.NONE
def op_throw_if_not(engine):
b = PushData.pop_bool(engine)
if not b:
return VMState.FAULT
return VMState.NONE
