dsp56000 Freescale Semiconductor, Inc, dsp56000 Datasheet - Page 60

• Manufacturer Part Number: dsp56000
• Description: 24-bit Digital Signal Processor Family Manual
• Manufacturer: Freescale Semiconductor, Inc

modifying the contents of Rn without an associated data move.
4.4.1.4
The address of the operand is in the address register, Rn (see Table 4-1 and Figure 4-7).
After the operand address is used, it is incremented by the contents of the Nn register and
stored in the same address register. The contents of the Nn register are unchanged. This
mode can be used for making XY: memory references and for modifying the contents of
4 - 10
EXAMPLE: MOVE A1,X: (R0)
Assembler Syntax: (Rn)
Memory Spaces: P:, X:, Y:, XY:, L:
Additional Instruction Execution Time (Clocks): 0
Additional Effective Address Words: 0
55 48 47
0
7
A2
1
0 23
2
Postincrement By Offset Nn
BEFORE EXECUTION
3
4
Figure 4-4 Address Register Indirect — No Update
A1
5
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7
0 23
Freescale Semiconductor, Inc.
23
X X X X X X
8 9 A
For More Information On This Product,
M0
R0
N0
X MEMORY
ADDRESS GENERATION UNIT
15
15
15
A0
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ADDRESSING
D
0
0
0
0
0
0
55 48 47
0
7
A2
1
0 23
2 3
AFTER EXECUTION
4
A1
5
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24 23
7
0 23
23
$ 2 3 4 5 6 7
8
M0
R0
N0
X MEMORY
9 A
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A0
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MOTOROLA
B C D
0
0
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