[A83] Re: Quick quistion about djnz


[Prev][Next][Index][Thread]

[A83] Re: Quick quistion about djnz




>Everyone says "speed is important", but very rarely is it really important.
>If two t-states are going to be called 100,000 times a frame, then maybe
>it's important, otherwise, no.  And in this case, it's not faster anyway:
>
>  djnz label   ; 13
>
>  dec b          ; 4
>  jp nz,label   ; 10
>                    ; = 14

Do these numbers also include the time it takes to get
the instruction out of the ram and so on?

         SUCKER

>
> > If you use a djnz loop, does it then jp or jr?
> > Speed is important, so if it does jp then maybe it is faster to do
> >
> >   dec b
> >   jr nz,label
> >
> >
> > rather than djnz ??
>
>
>
>


_________________________________________________________________
Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp





Follow-Ups: