<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:

def _modf(ins):
    ''' Reminder of div. 2 float values. The result is pushed onto the stack.
    '''
    op1, op2 = tuple(ins.quad[2:])
    output = _float_oper(op1, op2)
    output.append('call __MODF')
    output.extend(_fpush())
    REQUIRES.add('modf.asm')
    return output