MC68HC08MR4/MC68HC908MR8 — Rev. 2.0
Technical Data
MOTOROLA
Central Processor Unit (CPU)
89
Central Processor Unit (CPU)
Opcode Map
Table
6-2.
O
p
code
Map
B
it
M
a
nipul
at
io
n
B
ra
nc
h
R
e
a
d
-M
o
d
ify
-W
rite
C
on
tr
ol
Re
gis
te
r/M
e
m
or
y
DIR
D
IR
RE
L
D
IR
IN
H
IN
H
IX
1
S
P
1
IX
IN
H
IN
H
IM
M
D
IR
E
X
T
IX
2
S
P
2
IX
1
S
P
1
IX
0
1
2
3
4
5
6
9
E
6
7
8
9
ABCD
9E
D
E
9E
E
F
0
5
B
R
SET
0
3D
IR
4
BSE
T
0
2D
IR
3
BR
A
2R
E
L
4
NE
G
2D
IR
1
NE
G
A
1I
N
H
1
NE
G
X
1I
N
H
4
NE
G
2I
X
1
5
NE
G
3
SP1
3
NE
G
1I
X
7
RTI
1I
N
H
3
BGE
2R
E
L
2
SU
B
2I
M
3
SU
B
2D
IR
4
SU
B
3
EXT
4
SU
B
3I
X
2
5
SU
B
4
SP2
3
SU
B
2I
X
1
4
SU
B
3S
P
1
2
SU
B
1I
X
1
5
B
R
CL
R0
3D
IR
4
BC
LR
0
2D
IR
3
BR
N
2R
E
L
5
C
BEQ
3D
IR
4
C
BEQA
3I
M
4
C
BEQX
3I
M
5
C
BEQ
3I
X
1+
6
CB
E
Q
4
SP1
4
CB
E
Q
2I
X
+
4
RT
S
1I
N
H
3
BL
T
2R
E
L
2
CMP
2I
M
3
CM
P
2D
IR
4
CM
P
3
EXT
4
CM
P
3I
X
2
5
CM
P
4
SP2
3
CMP
2I
X
1
4
CM
P
3S
P
1
2
CM
P
1I
X
2
5
B
R
SET
1
3D
IR
4
BSE
T
1
2D
IR
3
BH
I
2R
E
L
5
MU
L
1I
N
H
7
DIV
1I
N
H
3
NS
A
1I
N
H
2
DA
A
1I
N
H
3
BGT
2R
E
L
2
SBC
2I
M
3
SB
C
2D
IR
4
SBC
3
EXT
4
SBC
3I
X
2
5
SBC
4
SP2
3
SBC
2I
X
1
4
SB
C
3S
P
1
2
SB
C
1I
X
3
5
B
R
CL
R1
3D
IR
4
BC
LR
1
2D
IR
3
BL
S
2R
E
L
4
CO
M
2D
IR
1
CO
M
A
1I
N
H
1
CO
M
X
1I
N
H
4
CO
M
2I
X
1
5
CO
M
3
SP1
3
CO
M
1I
X
9
SWI
1I
N
H
3
BLE
2R
E
L
2
CP
X
2I
M
3
CP
X
2D
IR
4
CP
X
3
EXT
4
CP
X
3I
X
2
5
CP
X
4
SP2
3
CP
X
2I
X
1
4
CP
X
3S
P
1
2
CP
X
1I
X
4
5
B
R
SET
2
3D
IR
4
BSE
T
2
2D
IR
3
BC
C
2R
E
L
4
LS
R
2D
IR
1
LS
R
A
1I
N
H
1
LS
RX
1I
N
H
4
LSR
2I
X
1
5
LSR
3
SP1
3
LS
R
1I
X
2
TA
P
1I
N
H
2
TX
S
1I
N
H
2
AN
D
2I
M
3
AN
D
2D
IR
4
AN
D
3
EXT
4
AN
D
3I
X
2
5
AN
D
4
SP2
3
AN
D
2I
X
1
4
AN
D
3S
P
1
2
AN
D
1I
X
5
5
B
R
CL
R2
3D
IR
4
BC
LR
2
2D
IR
3
BC
S
2R
E
L
4
ST
H
X
2D
IR
3
LD
HX
3I
M
4
LD
HX
2D
IR
3
CP
H
X
3I
M
4
CP
HX
2D
IR
1
TP
A
1I
N
H
2
TS
X
1I
N
H
2
BI
T
2I
M
3
BI
T
2D
IR
4
BI
T
3
EXT
4
BI
T
3I
X
2
5
BI
T
4
SP2
3
BI
T
2I
X
1
4
BI
T
3S
P
1
2
BI
T
1I
X
6
5
B
R
SET
3
3D
IR
4
BSE
T
3
2D
IR
3
BN
E
2R
E
L
4
RO
R
2D
IR
1
RO
R
A
1I
N
H
1
RO
RX
1I
N
H
4
RO
R
2I
X
1
5
RO
R
3
SP1
3
RO
R
1I
X
2
PU
LA
1I
N
H
2
LD
A
2I
M
3
LD
A
2D
IR
4
LDA
3
EXT
4
LD
A
3I
X
2
5
LD
A
4
SP2
3
LD
A
2I
X
1
4
LD
A
3S
P
1
2
LD
A
1I
X
7
5
B
R
CL
R3
3D
IR
4
BC
LR
3
2D
IR
3
BEQ
2R
E
L
4
ASR
2D
IR
1
ASR
A
1I
N
H
1
ASR
X
1I
N
H
4
AS
R
2I
X
1
5
AS
R
3
SP1
3
ASR
1I
X
2
PSH
A
1I
N
H
1
TA
X
1I
N
H
2
AI
S
2I
M
3
ST
A
2D
IR
4
ST
A
3
EXT
4
ST
A
3I
X
2
5
ST
A
4
SP2
3
ST
A
2I
X
1
4
ST
A
3S
P
1
2
ST
A
1I
X
8
5
B
R
SET
4
3D
IR
4
BSE
T
4
2D
IR
3
BH
C
2R
E
L
4
LS
L
2D
IR
1
LS
L
A
1I
N
H
1
LS
LX
1I
N
H
4
LSL
2I
X
1
5
LSL
3
SP1
3
LSL
1I
X
2
PU
LX
1I
N
H
1
CL
C
1I
N
H
2
EOR
2I
M
3
EOR
2D
IR
4
EOR
3
EXT
4
EOR
3I
X
2
5
EO
R
4
SP2
3
EOR
2I
X
1
4
EOR
3S
P
1
2
EOR
1I
X
9
5
B
R
CL
R4
3D
IR
4
BC
LR
4
2D
IR
3
BH
C
S
2R
E
L
4
RO
L
2D
IR
1
RO
LA
1I
N
H
1
RO
LX
1I
N
H
4
RO
L
2I
X
1
5
RO
L
3
SP1
3
RO
L
1I
X
2
PSH
X
1I
N
H
1
SEC
1I
N
H
2
AD
C
2I
M
3
AD
C
2D
IR
4
AD
C
3
EXT
4
AD
C
3I
X
2
5
AD
C
4
SP2
3
AD
C
2I
X
1
4
AD
C
3S
P
1
2
AD
C
1I
X
A
5
B
R
SET
5
3D
IR
4
BSE
T
5
2D
IR
3
BP
L
2R
E
L
4
DE
C
2D
IR
1
DE
C
A
1I
N
H
1
DE
CX
1I
N
H
4
DE
C
2I
X
1
5
DE
C
3
SP1
3
DE
C
1I
X
2
PU
LH
1I
N
H
2
CL
I
1I
N
H
2
OR
A
2I
M
3
OR
A
2D
IR
4
OR
A
3
EXT
4
OR
A
3I
X
2
5
OR
A
4
SP2
3
OR
A
2I
X
1
4
OR
A
3S
P
1
2
OR
A
1I
X
B
5
B
R
CL
R5
3D
IR
4
BC
LR
5
2D
IR
3
BMI
2R
E
L
5
DB
NZ
3D
IR
3
DB
N
Z
A
2I
N
H
3
DB
N
Z
X
2I
N
H
5
DB
NZ
3I
X
1
6
DB
N
Z
4
SP1
4
DB
N
Z
2I
X
2
PSH
H
1I
N
H
2
SEI
1I
N
H
2
AD
D
2I
M
3
AD
D
2D
IR
4
AD
D
3
EXT
4
AD
D
3I
X
2
5
AD
D
4
SP2
3
AD
D
2I
X
1
4
AD
D
3S
P
1
2
AD
D
1I
X
C
5
B
R
SET
6
3D
IR
4
BSE
T
6
2D
IR
3
BM
C
2R
E
L
4
IN
C
2D
IR
1
IN
CA
1I
N
H
1
IN
CX
1I
N
H
4
IN
C
2I
X
1
5
INC
3
SP1
3
IN
C
1I
X
1
CL
RH
1I
N
H
1
RS
P
1I
N
H
2
JMP
2D
IR
3
JMP
3
EXT
4
JMP
3I
X
2
3
JM
P
2I
X
1
2
JMP
1I
X
D
5
B
R
CL
R6
3D
IR
4
BC
LR
6
2D
IR
3
BMS
2R
E
L
3
TS
T
2D
IR
1
TS
TA
1I
N
H
1
TS
TX
1I
N
H
3
TS
T
2I
X
1
4
TS
T
3
SP1
2
TS
T
1I
X
1
NO
P
1I
N
H
4
BSR
2R
E
L
4
JS
R
2D
IR
5
JSR
3
EXT
6
JSR
3I
X
2
5
JSR
2I
X
1
4
JS
R
1I
X
E
5
B
R
SET
7
3D
IR
4
BSE
T
7
2D
IR
3
BI
L
2R
E
L
5
MO
V
3D
D
4
MO
V
2D
IX
+
4
MO
V
3I
M
D
4
MO
V
2I
X
+
D
1
ST
O
P
1I
N
H
*
2
LD
X
2I
M
3
LD
X
2D
IR
4
LDX
3
EXT
4
LD
X
3I
X
2
5
LD
X
4
SP2
3
LD
X
2I
X
1
4
LD
X
3S
P
1
2
LD
X
1I
X
F
5
B
R
CL
R7
3D
IR
4
BC
LR
7
2D
IR
3
BI
H
2R
E
L
3
CL
R
2D
IR
1
CL
RA
1I
N
H
1
CL
RX
1I
N
H
3
CL
R
2I
X
1
4
CL
R
3
SP1
2
CL
R
1I
X
1
WA
IT
1I
N
H
1
TX
A
1I
N
H
2
AI
X
2I
M
3
ST
X
2D
IR
4
ST
X
3
EXT
4
ST
X
3I
X
2
5
ST
X
4
SP2
3
ST
X
2I
X
1
4
ST
X
3S
P
1
2
ST
X
1I
X
IN
H
Inh
er
e
nt
R
E
L
R
e
la
tiv
e
S
P
1
S
ta
ck
P
o
in
te
r,8
-B
itOffs
et
IM
M
Im
m
e
di
a
te
IX
In
d
ex
e
d,
No
Offs
e
t
S
P
2
S
ta
ck
P
o
in
te
r,1
6
-B
it
Of
fs
e
t
DI
R
D
irec
t
IX1
In
de
xe
d,
8-
Bit
O
ffs
et
IX
+
In
d
ex
ed
,N
o
O
ffs
et
wi
th
EXT
Ex
tend
ed
IX2
In
d
ex
ed
,16
-B
itO
ffs
et
P
o
st
In
cr
em
en
t
D
ire
ct
-D
ire
ct
IM
D
Im
m
e
di
a
te-
D
ire
ct
IX
1+
Ind
ex
e
d,
1
-B
yte
Offs
e
tw
ith
IX
+
D
In
d
exe
d-
D
ire
ct
D
IX+
D
ire
ct
-I
n
de
xe
d
P
o
st
I
ncre
m
e
nt
*Pr
e-
by
te
fo
rs
tac
k
po
in
te
ri
nde
xe
dins
tr
uc
tio
ns
0
H
ig
hB
yte
of
O
pc
o
de
in
H
e
xade
ci
m
a
l
Lo
w
B
yte
o
fO
pc
o
de
in
H
ex
a
de
ci
m
a
l
0
5
BR
SET
0
3D
IR
Cy
cl
es
O
p
co
de
M
nem
on
ic
Nu
mb
er
of
By
te
s/
A
ddr
es
si
ng
Mo
de
MS
B
LS
B
MS
B
LS
B