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Architecture ATMEL AVR



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(excerpt datasheet ATMEL AVR 90s8515)




Addressing modes

  1. direct single register (inc r16)

  2. direct two registers (add r16,r17)

  3. direct io (out PORTB, r17)

  4. direct data (lds r16, $006a)

  5. indirect (ld r4, X)

  6. indirect with postincrement (ld r4, X+)

  7. indirect with preincrement (ld r4, -X)

  8. indirect with displacement (ldd r4, Y+2)
    for Y or Z only

  9. constant program (lpm)
    for Z only

  10. indirect program (ijmp label)
    for Z only (PC = Z)

  11. relative program (rjmp label)
    PC = PC+k+1

Kner 2004 2/2