Motorola DSP56000 Manual page 418

24-bit digital signal processor
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LUA
Condition Codes:
15
14
13
LF
DM
The condition codes are not affected by this instruction.
Instruction Format:
LUA ea,D
Opcode:
23
0
0
0
0
Instruction Fields:
ea=5-bit Effective Address=MMRRR,
D=4-bit destination address register=dddd
Effective
Addressing Mode
(Rn)-Nn
(Rn)+Nn
(Rn)-
(Rn)+
where "rrr" refers to a source address register R0–R7
where "nnn" refers to a destination address register R0–R7 or N0–N7
Timing: 4 oscillator clock cycles
Memory: 1 program word
MOTOROLA
INSTRUCTION DESCRIPTIONS
Load Updated Address
12
11
10
9
T
**
S1
S0
I1
MR
16 15
0
1
0
0
0
1
0
M M M R R R
0 0 0 r r r
0 0 1 r r r
0 1 0 r r r
0 1 1 r r r
INSTRUCTION SET DETAILS
8
7
6
5
4
I0
S
L
E
U
CCR
8
7
M
M
R
R
R
0
Dest. Addr. Reg. D
R0–R7
N0–N7
LUA
3
2
1
0
N
Z
V
C
0
0
0
1
d
d
d
d
d d d d
0 n n n
1 n n n
A - 149

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