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USER'S GUIDE
SECTION 19: INSTRUCTION SET DETAILS
MNEMONIC
MNEMONIC
D
ADD A, Rn
0
ADD A, direct
0
a
ADD A, @Ri
0
ADD A, #data
0
d
ADDC A, Rn
0
ADDCA,direct
0
a
ADDC A, @Ri
0
ADDC A,#data
0
d
SUBB A, Rn
1
SUBB A,direct
1
a
SUBB A, @Ri
1
SUBB A,#data
1
d
INC A
0
INC Rn
0
INC direct
0
a
INC @Ri
0
INC DPTR
1
DEC A
0
DEC Rn
0
DEC direct
0
a
DEC @Ri
0
MUL AB
1
DIV AB
1
050396 167/173
INSTRUCTION CODE
D
D
D
D
7
6
5
4
3
0
1
0
1
0
1
0
0
a
a
a
a
7
6
5
4
3
0
1
0
0
0
1
0
0
d
d
d
d
7
6
5
4
3
0
1
1
1
0
1
1
0
a
a
a
a
7
6
5
4
3
0
1
1
0
0
1
1
0
d
d
d
d
7
6
5
4
3
0
0
1
1
0
0
1
0
a
a
a
a
7
6
5
4
3
0
0
1
0
0
0
1
0
d
d
d
d
7
6
5
4
3
0
0
0
0
0
0
0
1
0
0
0
0
a
a
a
a
7
6
5
4
3
0
0
0
0
0
1
0
0
0
0
1
0
0
0
1
1
0
0
1
0
a
a
a
a
7
6
5
4
3
0
0
1
0
0
1
0
0
0
0
0
0
HEX
HEX
D
D
D
2
1
0
n
n
n
28–2F
2
1
0
1
0
1
25
a
a
a
Byte 2
2
1
0
1
1
i
26–27
1
0
0
24
d
d
d
Byte 2
2
1
0
n
n
n
38–3F
2
1
0
1
0
1
35
a
a
a
Byte 2
2
1
0
1
1
i
36–37
1
0
0
34
d
d
d
Byte 2
2
1
0
n
n
n
98–9F
2
1
0
1
0
1
95
a
a
a
Byte 2
2
1
0
1
1
i
96–97
1
0
0
94
d
d
d
Byte 2
2
1
0
1
0
0
04
n
n
n
08–0F
2
1
0
1
0
1
05
a
a
a
Byte 2
2
1
0
1
1
i
06–07
0
1
1
A3
1
0
0
14
n
n
n
18–1F
2
1
0
1
0
1
15
a
a
a
Byte 2
2
1
0
1
1
i
16–17
1
0
0
A4
1
0
0
84
168
BYTE CYCLE
BYTE CYCLE
EXPLANATION
EXPLANATION
1
1
(A) = (A) + (Rn)
2
1
(A) = (A) + (direct)
1
1
(A) = (A) + ((Ri))
2
1
(A) = (A) + #data
1
1
(A) = (A)+(C)+(Rn)
2
1
(A) =
(A)+(C)+(direct)
1
1
(A) = (A)+(C)+((Ri))
2
1
(A) = (A)+(C)+#data
1
1
(A) = (A)–(C)–(Rn)
2
1
(A) =
(A)–(C)–(direct)
1
1
(A) = (A)–(C)–((Ri))
2
1
(A) = (A)-(C)-#data
1
1
(A) = (A) + 1
1
1
(Rn) = (Rn) + 1
2
1
(direct) = (direct)+1
1
1
((Ri)) = ((Ri)) + 1
1
2
(DPTR)=(DPTR)+1
1
1
(A) = (A) – 1
1
1
(Rn) = (Rn) – 1
2
1
(direct) = (direct)–1
1
1
((Ri)) = ((Ri)) –1
1
4
(B
15–8
= (A) X (B)
1
4
(A
15–8
= (A) (B)
), (A
)
7–0
), (A
)
7–0
- Quick Links:
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