Figure 4-3 Address Register Indirect: No Update - Motorola DSP56800 Manual

Address Generation Unit
Before Execution
A2 A1
A 0 1 2
35 32 31
15
$1000 X
R0
15
N
15
M01
15
Assembler syntax: X:(Rn), X:(SP)
Additional instruction execution cycles: 0
Additional effective address program words: 0
4-10
No Update Example
A0
3 4 5 6 7 8
16 15 0
X Memory
0
X X X
$1000
0
(n/a)
0
(n/a)
0
Figure 4-3. Address Register Indirect: No Update
DSP56800 Family Manual
MOVE A1,X:(R0)
:
After Execution
A2 A1
A 0 1 2 3
35 32 31
X Memory
15
$1000 1 2
R0 $1000
15
N (n/a)
15
M01 (n/a)
15
A0
4 5 6 7 8
16 15 0
0
3 4
0
0
0
AA0016