Rainbow Electronics AT90S8515 - Manual (Page 16)

16
AT90S8515
0841G–09/01
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
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.
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 - 4K), the LSB selects low byte if cleared (LSB = 0) or high byte if set (LSB =
1).
$000
$FFF
PROGRAM MEMORY
15 1 0
Z-REGISTER