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ROXL, ROXR
Instruction Format (Memory Rotate):
15
14
13
1
1
1
Instruction Fields (Memory Rotate):
dr field — Specifies the direction of the rotate:
0 — Rotate right
1 — Rotate left
Effective Address field — Specifies the operand to be rotated. Only memory alterable
addressing modes are allowed as shown:
Addressing Mode
Dn
An
(An)
(An) +
– (An)
(d
, An)
16
(d
, An, Xn)
8
(bd, An, Xn)
CPU32
REFERENCE MANUAL
Rotate with Extend
12
11
10
9
0
0
1
0
Mode
Register
—
—
—
—
010
Reg. number: An
011
Reg. number: An
100
Reg. number: An
101
Reg. number: An
110
Reg. number: An
110
Reg. number: An
INSTRUCTION SET
ROXL, ROXR
8
7
6
5
dr
1
1
Addressing Mode
(xxx).W
(xxx).L
#〈data〉
(d
, PC)
16
(d
, PC, Xn)
8
(bd, PC, Xn)
4
3
2
1
EFFECTIVE ADDRESS
MODE
REGISTER
Mode
Register
111
000
111
001
—
—
—
—
—
—
—
—
MOTOROLA
0
4-135
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