AS motylek

    .org 0x00
    ldi R16,0b11111111  ;rejestr roboczy
    ldi R19,0b11111111  ;maska
E1: ldi R17,0b11111111  ;rejestr wynikowy
E2: ldi R18,0b00011000
    lsr R16
    lsl R17
    and R16,R17
    sub R18,R16
    mov R19,R16
    brne E2
    ldi R17,0b00011000
E3: ldi R18,0b11111111
    lsl R16
    lsr R17
    or  R16,R17
    sub R18,R16
    mov R19,R16
    brne E3
    jmp E1