Manual
High-Speed Microcontroller User’s Guide
Rev: 062210 163 of 176
16. INSTRUCTION SET DETAILS
Details of flags modified by each instruction are located in Section 4.
INSTRUCTION CODE
MNEMONIC
D
7
D
6
D
5
D
4
D
3
D
2
D
1
D
0
HEX
BYTE
CYCLE
EXPLANATION
ADD A, Rn 0 0 1 0 1 n
2
n
1
n
0
28-2F 1 1 (A) = (A) + (Rn)
ADD A, direct 0
a
7
0
a
6
1
a
5
0
a
4
0
a
3
1
a
2
0
a
1
1
a
0
25
Byte 2
2 2 (A) = (A) + (direct)
ADD A, @Ri 0 0 1 0 0 1 1 i 26-27 1 1 (A) = (A) + ((Ri))
ADD A, #data 0
d
7
0
d
6
1
d
5
0
d
4
0
d
3
1
d
2
0
d
1
0
d
0
24
Byte 2
2 2 (A) = (A) + #data
ADDC A, Rn 0 0 1 1 1 n
2
n
1
n
0
38-3F 1 1 (A) = (A)+(C)+(Rn)
ADDC A,
direct
0
a
7
0
a
6
1
a
5
1
a
4
0
a
3
1
a
2
0
a
1
1
a
0
35
Byte 2
2 2 (A) = (A)+(C)+(direct)
ADDC A, @Ri
0 0 1 1 0 1 1 i 36-37 1 1 (A) = (A)+(C)+((Ri))
ADDC
A,#data
0
d
7
0
d
6
1
d
5
1
d
4
0
d
3
1
d
2
0
d
1
0
d
0
34
Byte 2
2 2 (A) = (A)+(C)+#data
SUBB A, Rn 1 0 0 1 1 n
2
n
1
n
0
98-9F 1 1 (A) = (A)-(C)-(Rn)
SUBB A,
direct
1
a
7
0
a
6
0
a
5
1
a
4
0
a
3
1
a
2
0
a
1
1
a
0
95
Byte 2
2 2 (A) = (A)-(C)-(direct)
SUBB A, @Ri 1 0 0 1 0 1 1 i 96-97 1 1 (A) = (A)-(C)-((Ri))
SUBB A,
#data
1
d
7
0
d
6
0
d
5
1
d
4
0
d
3
1
d
2
0
d
1
0
d
0
94
Byte 2
2 2 (A) = (A)-(C)-#data
INC A 0 0 0 0 0 1 0 0 04 1 1 (A) = (A) + 1
INC Rn 0 0 0 0 1 n
2
n
1
n
0
08-0F 1 1 (Rn) = (Rn) + 1
INC direct 0
a
7
0
a
6
0
a
5
0
a
4
0
a
3
1
a
2
0
a
1
1
a
0
05
Byte 2
2 2 (direct) = (direct)+1
INC @Ri 0 0 0 0 0 1 1 i 06-07 1 1 ((Ri)) = ((Ri)) + 1
INC DPTR 1 0 1 0 0 0 1 1 A3 1 3 (DPTR)=(DPTR)+1
DEC A 0 0 0 1 0 1 0 0 14 1 1 (A) = (A) - 1
DEC Rn 0 0 0 1 1 n
2
n
1
n
0
18-1F 1 1 (Rn) = (Rn) - 1
DEC direct 0
a
7
0
a
6
0
a
5
1
a
4
0
a
3
1
a
2
0
a
1
1
a
0
15
Byte 2
2 2 (direct) = (direct)-1
DEC @Ri 0 0 0 1 0 1 1 i 16-17 1 1 ((Ri)) = ((Ri)) - 1
MUL AB 1 0 1 0 0 1 0 0 A4 1 5 (B
15–8
), (A
7–0
)
= (A) X (B)
ARITHMETIC OPERATION
DIV AB 1 0 0 0 0 1 0 0 84 1 5 (A
15–8
), (A
7–0
)
= (A) ÷ (B)