Central Processor Unit (CPU)
Instruction Set
M68HC11E Family — Rev. 5
Data Sheet
MOTOROLA
Central Processor Unit (CPU)
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85
LSR (opr)
Logical Shift
Right
EXT
IND,X
IND,Y
INH
74
64
64
44
18
hh ll
ff
ff
6
6
7
2
—
—
—
—
0
LSRA
Logical Shift
Right A
A
—
—
—
—
—
0
LSRB
Logical Shift
Right B
B
INH
54
—
2
—
—
—
—
0
LSRD
Logical Shift
Right Double
INH
04
—
3
—
—
—
—
0
MUL
Multiply 8 by 8
Two’s
Complement
Memory Byte
Two’s
Complement
A
Two’s
Complement
B
No operation
OR
Accumulator
A (Inclusive)
A
B
D
0 – M
M
INH
EXT
IND,X
IND,Y
INH
3D
70
60
60
40
—
10
6
6
7
2
—
—
—
—
—
—
—
—
—
—
—
NEG (opr)
18
hh ll
ff
ff
NEGA
0 – A
A
A
—
—
—
—
—
NEGB
0 – B
B
B
INH
50
—
2
—
—
—
—
NOP
No Operation
A + M
A
INH
IMM
DIR
EXT
IND,X
IND,Y
IMM
DIR
EXT
IND,X
IND,Y
INH
01
8A
9A
BA
AA
AA
CA
DA
FA
EA
EA
36
—
2
2
3
4
4
5
2
3
4
4
5
3
—
—
—
—
—
—
—
—
—
—
—
0
—
—
ORAA (opr)
A
A
A
A
A
B
B
B
B
B
18
ii
dd
hh ll
ff
ff
ii
dd
hh ll
ff
ff
ORAB (opr)
OR
Accumulator
B (Inclusive)
B + M
B
18
—
—
—
—
0
—
PSHA
Push A onto
Stack
Push B onto
Stack
Push X onto
Stack (Lo
First)
Push Y onto
Stack (Lo
First)
Pull A from
Stack
Pull B from
Stack
Pull X From
Stack (Hi
First)
Pull Y from
Stack (Hi
First)
Rotate Left
A
Stk,SP = SP – 1 A
—
—
—
—
—
—
—
—
—
PSHB
B
Stk,SP = SP – 1 B
INH
37
—
3
—
—
—
—
—
—
—
—
PSHX
IX
Stk,SP = SP – 2
INH
3C
—
4
—
—
—
—
—
—
—
—
PSHY
IY
Stk,SP = SP – 2
INH
18
3C
—
5
—
—
—
—
—
—
—
—
PULA
SP = SP + 1, A
Stk A
INH
32
—
4
—
—
—
—
—
—
—
—
PULB
SP = SP + 1, B
Stk B
INH
33
—
4
—
—
—
—
—
—
—
—
PULX
SP = SP + 2, IX
Stk
INH
38
—
5
—
—
—
—
—
—
—
—
PULY
SP = SP + 2, IY
Stk
INH
18
38
—
6
—
—
—
—
—
—
—
—
ROL (opr)
EXT
IND,X
IND,Y
INH
79
69
69
49
18
hh ll
ff
ff
6
6
7
2
—
—
—
—
ROLA
Rotate Left A
A
—
—
—
—
—
ROLB
Rotate Left B
B
INH
59
—
2
—
—
—
—
ROR (opr)
Rotate Right
EXT
IND,X
IND,Y
76
66
66
18
hh ll
ff
ff
6
6
7
—
—
—
—
Table 4-2. Instruction Set (Sheet 5 of 7)
Mnemonic
Operation
Description
Addressing
Mode
Instruction
Operand
Condition Codes
H
I
Opcode
Cycles
S
X
N
Z
V
C
C
0
b7
b0
C
0
b7
b0
C
0
b7
b0
C
0
b7
b0
A
B
b7
b0
C
b7
b0
C
b7
b0
C
b7
b0
C
b7
b0
F
Freescale Semiconductor, Inc.
n
.