EZ-USB Datasheet, PDF (285/334 Pages) Cypress Semiconductor – The EZ-USB USB Integrated Circuit

Mnemonic
ADD A, Rn
ADD A, direct
ADD A, @Ri
ADDC 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
INC Rn
INC direct
INC @ Ri
DEC A
DEC Rn
DEC direct
DEC @Ri
INC DPTR
MUL AB
DIV AB
DA A
Table B-2. 8051 Instruction Set
Description
Arithmetic
Add register to A
Add direct byte to A
Add data memory to A
Add immediate to A
Add register to A with carry
Add direct byte to A with carry
Add data memory to A with carry
Add immediate to A with carry
Subtract register from A with borrow
Subtract direct byte from A with borrow
Subtract data memory from A with borrow
Subtract immediate from A with borrow
increment A
Increment register
Increment direct byte
Increment data memory
Decrement A
Decrement Register
Decrement direct byte
Decrement data memory
Increment data pointer
Multiply A by B
Divide A by B
Decimal adjust A
Byte
Instr.
Cycles
1
1
2
2
1
1
2
2
1
1
2
2
1
1
2
2
1
1
2
2
1
1
2
2
1
1
1
1
2
2
1
1
1
1
1
1
2
2
1
1
1
3
1
5
1
5
1
1
Hex
Code
28-2F
25
26-27
24
38-3F
35
36-37
34
98-9F
95
96-97
94
04
08-0F
05
06-07
14
18-1F
15
16-17
A3
A4
84
D4
EZ-USB v1.9
Appendix B: 8051 Architectural Overview
B-5