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MOVEM
Move Multiple Registers
MOVEM
Condition Codes:
Not affected.
Instruction Format:
15
14
13
12
11
10
9
8
7
6
5
4
3
2
o
EFFECTIVE ADDRESS
0
1
0
0
1
dr
0
0
1
SIZE
REGISTER LIST MASK
Instruction Field:
dr field - Specifies the direction of the transfer:
o -
Register to memory
1 - Memory to register
MODE
I
REGISTER
Size field - Specifies the size of the registers being transferred:
4
o -
Word transfer
1 - Long transfer
Effective Address field -
Specifies the memory address for the operation. For register-to-
memory transfers, only control alterable addressing modes, or the predecrement addressing
mode are allowed as shown:
Addressing Mode
Mode
Dn
-
An
-
(An)
010
(An)
+
-
-(An)
100
(d16, An)
101
(de, An, Xn)
110
(bd, An, Xn)
110
CPU32 REFERENCE MANUAL
Register
Addressing Mode
-
(xxx).w
-
(xxx).L
Reg. number: An
#(data)
-
Reg. number: An
Reg. number: An
(d16, PC)
Reg. number: An
(de, PC, Xn)
Reg. number: An
(bd, PC, Xn)
INSTRUCTION SET
Mode
111
111
-
-
-
-
Register
000
001
-
-
-
-
MOTOROLA
4-105
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