dsp56800e Freescale Semiconductor, Inc, dsp56800e Datasheet - Page 80

• Manufacturer Part Number: dsp56800e
• Description: 16-bit Digital Signal Controller Core
• Manufacturer: Freescale Semiconductor, Inc

Data Types and Addressing Modes
3.6.3.2
The address of the operand is in the address register Rn, N, or SP. After the operand address is used, it is
incremented and stored in the same address register. When a long 32-bit memory location is accessed, the
pointer is incremented by two.
Figure 3-16 demonstrates this addressing mode.
3-30
B
Available for: Byte (Byte Pointer), Word, Long
Assembler Syntax: X:(Rn)+, X:(N)+, X:(SP)+, P:(Rj)+
Additional Instruction Execution Cycles: 0
Additional Effective Address Program Words: 0
35 32 31
B2
$002501
$002500
Post-Increment: (Rn)+
A
R2
6
15
23
Before Execution
5
X
X
Figure 3-16. Address Register Indirect: Post-Increment
B1
X Memory
$002500
4
X
X
Post-Increment Example:
3
16 15
X
X
DSP56800E Core Reference Manual
X
X
F
0
0
E
B0
D
C
0
MOVE.W B0,X:(R2)+
B
35 32 31
B2
$002501
$002500
A
R2
6
15
23
After Execution
5
X
F
B1
X Memory
$002501
4
X
E
3
16 15
X
D
Freescale Semiconductor
X
C
F
0
0
E
B0
D
C
0