AVR-Chat

John
  Many thanks for the reply - Just tested it out and it works a treat.

cheers

Ken


--- In AVR-Chat@yahoogroups.com, John Samperi <samperi@...> wrote:
>
> At 04:26 AM 14/02/2006, you wrote:
> >fastest way to go about reading a fixe number of bytes into an
> >array/memory location using assembler?
> >
> >char mydata[256];
> >void myloop()
> >     {
> >     for(d=256;d;d--) mydata[d]=PIND;
> >     }
> 
> ldi     xl,low(mydata)
> ldi     xh,high(mydata) ;use x as pointer
> clr     counter         ;use any 8 bit register
> 
> cpy_loop:
> in      data_reg,pind   ;use any 8 bit register for data
> st      x+,data_reg     ;save data with post increment
> dec     counter
> brne    cpy_loop        ;exit when 8 bit counter reaches 0 again
> 
> Regards
> 
> John Samperi
> 
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