.device at90s2313
.nolist
.include "C:\Program Files\Atmel\AVR Tools\AvrAssembler\Appnotes\2313def.inc"
.list
.def temp=r16
rjmp Init                        ; 
Init:
ldi temp,0b11111111        ; 
out DDRB,temp              ;
ldi temp,0b11111111        ; 
out DDRD,temp              ;

ldi temp,0b00000000     ; 
out PortB,temp          ; 
ldi temp,0b00000000     ; 
out PortD,temp          ; 


Start:
  sbi PortB,0             ; Включаем светодиод
 rjmp Start             ; Возвращаемся к метке Start