Data Indirect with Pre-Decrement
Figure 15. Data Indirect Addressing with Pre-Decrement
15
0
X, Y, OR Z - REGISTER
ATmega161(L)
Data Space
$0000
-1
$FFFF
The X, Y, or the Z-register is decremented before the operation. Operand address is the decremented contents of the X, Y,
or the Z-register.
Data Indirect with Post-Increment
Figure 16. Data Indirect Addressing with Post-Increment
15
0
X, Y, OR Z - REGISTER
Data Space
$0000
1
$FFFF
The X, Y, or the Z-register is incremented after the operation. Operand address is the content of the X, Y, or the Z-register
prior to incrementing.
15