CC2430
8051 CPU : Instruction Set Summary
Table 28: Instruction Set Summary
Mnemonic
Description
Hex
Bytes
Cycles
Opcode
Arithmetic operations
ADD A,Rn
ADD A,direct
ADD A,@Ri
ADD A,#data
ADDC A,Rn
ADDC A,direct
ADDC A,@Ri
ADDC A,#data
SUBB A,Rn
SUBB A,direct
SUBB A,@Ri
SUBB A,#data
INC A
Add register to accumulator
Add direct byte to accumulator
Add indirect RAM to accumulator
Add immediate data to accumulator
Add register to accumulator with carry flag
Add direct byte to A with carry flag
Add indirect RAM to A with carry flag
Add immediate data to A with carry flag
Subtract register from A with borrow
Subtract direct byte from A with borrow
Subtract indirect RAM from A with borrow
Subtract immediate data from A with borrow
Increment accumulator
28-2F
25
1
2
1
2
1
2
1
2
1
2
1
2
1
1
2
1
1
1
1
2
1
1
1
1
1
2
2
2
1
2
2
2
1
2
2
2
1
2
3
3
1
1
2
3
3
5
5
1
26-27
24
38-3F
35
36-37
34
98-9F
95
96-97
94
04
INC Rn
Increment register
08-0F
05
INC direct
INC @Ri
Increment direct byte
Increment indirect RAM
06-07
A3
INC DPTR
DEC A
Increment data pointer
Decrement accumulator
14
DEC Rn
Decrement register
18-1F
15
DEC direct
DEC @Ri
MUL AB
Decrement direct byte
Decrement indirect RAM
16-17
A4
Multiply A and B
DIV
Divide A by B
84
DA A
Decimal adjust accumulator
D4
CC2430 Data Sheet (rev. 2.1) SWRS036F
Page 45 of 211
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