@instruction<EOL><INDENT>def CLD(cpu):<DEDENT>
cpu.DF = False<EOL>
Clears direction flag.
Clears the DF flag in the EFLAGS register. When the DF flag is set to 0, string operations
increment the index registers (ESI and/or EDI)::

    DF  =  0;

:param cpu: current CPU.