Re: mov instruction

On Thu, Feb 07, 2013 at 03:57:37PM +0200, Hendrik Visage wrote:
> On Thu, Feb 7, 2013 at 5:57 AM, horseriver <[email protected]> wrote:
> > hi:)
> >
> >   Is here a suitable place to post topics about hardware technology?
> >
> >   I am curious about how mov work.
> >   Why it can not move data from a mem adress to another adress  in one instruction.
> >   in this form : mov (eax), (ebx)
> 
> That is what the (rep) movs(b/w) etc. operation(s) are designed for
> these "string copy" operations. the old 8086 had those running between
> es:di and ds:si as the registers for this.
  Yeah! I remember that.
  But why this can not work : mov (eax), (ebx)  ?  just curious .

thanks!