Rainbow Electronics ATmega161L - Manual (Page 15)

15
ATmega161(L)
1228C–AVR–08/02
Data Indirect with
Displacement Figure 13. Data Indirect with Displacement
Operand address is the result of the Y- or Z-register contents added to the address con-
tained in six bits of the instruction word.
Data Indirect Figure 14. Data Indirect Addressing
Operand address is the contents of the X-, Y-, or Z-register.
Data Indirect with Pre-
decrement Figure 15. Data Indirect Addressing with Pre-decrement
The X-, Y-, or Z-register is decremented before the operation. Operand address is the
decremented contents of the X-, Y-, or Z-register.
Data Space
$0000
$FFFF
Y OR Z - REGISTER
OP a n
0
0 5 6 10
15
15
Data Space
$0000
$FFFF
X, Y, OR Z - REGISTER
0 15
Data Space
$0000
$FFFF
X, Y, OR Z - REGISTER
0 15
-1