Instruction set of 8051 | Types | - Poly Notes Hub
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In this note, we discuss the Instruction Set of 8051 Microcontroller . Poly Notes Hub
The instruction set of 8051 is divided into 5 categories. They are as follows:
Arithmetic Instruction Logical Instruction Data Transfer Instruction Boolean Variable Manipulation Instruction Program and Machine Control Instruction
We have listed all the instruction set of 8051 with examples with description. Each instruction set of 8051 are explained in the next sections one by one.
Instruction Set of 8051 with examplesBelow we describes all the types of instruction set of 8051
Instructions Mnemonics 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 flag ADDC A, direct Add direct byte to A with the carry flag ADDC A, @Ri Add indirect RAM to the Accumulator with carry flag SUBB A, Rn Subtract register from A with borrow SUBB A, direct Subtract direct byte from A with borrow SUBB A, @Ri Subtract indirect RAM from A with borrow INC A Increment Accumulator INC Rn Increment Register INC direct Increment direct byte INC @Ri Increment indirect RAM DEC A Decrement Accumulator DEC Rn Decrement Register DEC direct Decrement direct byte DEC @Ri Decrement indirect RAM INC DPTR Increment data pointer MUL AB Multiply A and B DIV AB Divided A by B DA A Decimal adjust Accumulator
Instructions Mnemonics Description ANL A, Rn AND register to Accumulator ANL A, direct AND direct byte to Accumulator ANL A, #data AND immediate data to Accumulator ANL direct, A AND Accumulator to direct byte ORL A, Rn OR register to Accumulator ORL A, direct OR direct byte to Accumulator ORL A, #data OR immediate data to Accumulator ORL direct, A OR Accumulator to direct byte XRL A, Rn XOR register to Accumulator XRL A, direct XOR direct byte to Accumulator XRL A, #data XOR immediate data to Accumulator XRL direct, A XOR Accumulator to direct byte CLR A Clear Accumulator CPL A Complement Accumulator RL A Rotate Accumulator Left RLC A Rotate Accumulator Left through carry RR A Rotate Accumulator Right RRC A Rotate Accumulator Right through carry SWAP A Swap nibbles
Instructions Mnemonics Description MOV A, Rn Move register to Accumulator MOV A, direct Move direct byte to Accumulator MOV A, @Ri Move indirect RAM to Accumulator MOV A, #data Move immediate data to Accumulator MOV Rn, A Move Accumulator to Register MOV Rn, direct Move direct byte to Register MOV Rn, #data Move immediate data to Register MOV direct, A Move Accumulator to direct byte MOV direct, Rn Move register to direct byte MOV direct, direct Move direct byte to direct byte PUSH direct Push direct byte onto stack POP direct Pop direct byte from stack XCH A, Rn Exchange register with Accumulator XCH A, direct Exchange direct byte with Accumulator XCH A, @Ri Exchange indirect RAM with Accumulator XCHD A, @Ri Exchange low-order nibble indirect RAM with Accumulator
Instructions Mnemonics Description CLR C Clear carry flag CLR bit Clear direct bit SETB C Set carry flag SETB bit Set direct bit CPL C Complement carry flag CPL bit Complement direct bit ANL C, bit AND direct bit to carry flag ANL C, bit AND complement of direct bit to carry ORL C, bit OR direct bit to carry flag ORL C, bit OR complement of direct bit to carry MOV C, bit Move direct bit to carry flag
Instructions Mnemonics Description ACALL addr 11 Absolute subroutine call LCALL addr 16 Long subroutine call RET Return from subroutine RETI Return from interrupt AJMP addr 11 Absolute jump LJMP addr 16 Long jump SJMP rel Short jump
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Instruction set of 8051 | Types | - Poly Notes Hub
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We use cookies to ensure that we give you the best experience on our website. If you continue to use this site we will assume that you are happy with it. Ok Privacy policy Instruction set of 8051 | Types | - Poly Notes Hub
We use cookies to ensure that we give you the best experience on our website. If you continue to use this site we will assume that you are happy with it. Ok Privacy policy Instruction set of 8051 | Types | - Poly Notes Hub
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