Department Of Electronics

8051 Instruction Set ARITHMETIC OPERATIONS Mnemonic                           Description ADD A,Rn                         Add register to Accumulator   ADD A,direct                Add direct byte to Accumulator   ADD A,@Ri                   Add indirect RAM to Accumulator   ADD A,#data                 Add immediate data to Accumulator   ADDC A,Rn                   Add register to Accumulator with Carry ADDC A,direct              Add direct byte to Accumulator with Carry   ADDC A,@Ri                Add indirect RAM to Accumulator with Carry   ADDC A,#data             Add immediate data to Acc with Carry SUBB A,Rn                      Subtract Register from Acc with borrow SUBB A,direct                Subtract direct byte from Acc with borrow SUBB A,@Ri                    Subtract indirect RAM from ACC with borrow   SUBB A,#data                 Subtract immediate data from Acc with borrow   INC A                              Increment Accumulator   INC