Technical Data
MC68HC705C8A
—
Rev. 3
164
Instruction Set
MOTOROLA
Instruction Set
12.5 Instruction Set Summary
Table 12-6. Instruction Set Summary (Sheet 1 of 6)
Source
Form
Operation
Description
Effect on
CCR
A
M
O
O
ii
dd
hh ll
ee ff
ff
C
H I N Z C
ADC #
opr
ADC
opr
ADC
opr
ADC
opr
,X
ADC
opr
,X
ADC ,X
Add with Carry
A
←
(A) + (M) + (C)
—
IMM
DIR
EXT
IX2
IX1
IX
A9
B9
C9
D9
E9
F9
2
3
4
5
4
3
ADD #
opr
ADD
opr
ADD
opr
ADD
opr
,X
ADD
opr
,X
ADD ,X
Add without Carry
A
←
(A) + (M)
—
IMM
DIR
EXT
IX2
IX1
IX
AB
BB
CB
DB
EB
FB
ii
dd
hh ll
ee ff
ff
2
3
4
5
4
3
AND #
opr
AND
opr
AN
D opr
AND
opr
,X
AND
opr
,X
AND ,X
Logical AND
A
←
(A)
∧
(M)
— —
—
IMM
DIR
EXT
IX2
IX1
IX
A4
B4
C4
D4
E4
F4
ii
dd
hh ll
ee ff
ff
2
3
4
5
4
3
ASL
opr
ASLA
ASLX
ASL
opr
,X
ASL ,X
Arithmetic Shift Left (Same as LSL)
— —
DIR
INH
INH
IX1
IX
38
48
58
68
78
dd
ff
5
3
3
6
5
ASR
opr
ASRA
ASRX
ASR
opr
,X
ASR ,X
Arithmetic Shift Right
— —
DIR
INH
INH
IX1
IX
37
47
57
67
77
dd
ff
5
3
3
6
5
BCC
rel
Branch if Carry Bit Clear
PC
←
(PC) + 2 +
rel
C = 0
— — — — —
REL
24
rr
3
BCLR
n opr
Clear Bit n
Mn
←
0
— — — — —
DIR (b0)
DIR (b1)
DIR (b2)
DIR (b3)
DIR (b4)
DIR (b5)
DIR (b6)
DIR (b7)
11
13
15
17
19
1B
1D
1F
dd
dd
dd
dd
dd
dd
dd
dd
5
5
5
5
5
5
5
5
BCS
rel
Branch if Carry Bit Set (Same as BLO)
PC
←
(PC) + 2 +
rel
C = 1
PC
←
(PC) + 2 +
rel
Z = 1
PC
←
(PC) + 2 +
rel
H = 0
PC
←
(PC) + 2 +
rel
H = 1
PC
←
(PC) + 2 +
rel
C
∨
Z = 0
— — — — —
PC
←
(PC) + 2 +
rel
C = 0
— — — — —
REL
25
rr
3
BEQ
rel
Branch if Equal
— — — — —
REL
27
rr
3
BHCC
rel
Branch if Half-Carry Bit Clear
— — — — —
REL
28
rr
3
BHCS
rel
Branch if Half-Carry Bit Set
— — — — —
REL
29
rr
3
BHI
rel
Branch if Higher
REL
22
rr
3
BHS
rel
Branch if Higher or Same
— — — — —
REL
24
rr
3
C
b0
b7
0
b0
b7
C