Rainbow Electronics AT90S2313 - Manual (Page 12)

12
AT90S2313
0839I–AVR–06/02
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 Indirect with Post-
increment Figure 16. Data Indirect Addressing with Post-increment
The X-, Y-, or Z-register is incremented after the operation. Operand address is the con-
tents of the X-, Y-, or Z-register prior to incrementing.
Constant Addressing Using
the LPM Instruction Figure 17. Code Memory Constant Addressing
Constant byte address is specified by the Z-register contents. The 15 MSBs select word
address (0 - 1K), the LSB selects low byte if cleared (LSB = 0) or high byte if set (LSB =
1).