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Posted: September 22nd, 2022
Types of Instructions for the 8051 Microcontroller
Types of Instructions for the 8051 Microcontroller
Laptop Sciences and Data Know-how
Types of Instructions for the 8051 Microcontroller
The 8051 Microcontroller has the following varieties of directions; information switch directions, arithmetic directions, logical directions, program branching directions and bit manipulation directions (Ravi et al, 2017). The directions represent the opcode. The directions will be opcode or two-byte directions.
Knowledge switch directions are utilized in the switch of information between the reminiscence, ports and registers (Ravi et al, 2017). The directions are thought-about as information motion directions or purposes that enable the switch of information from one location to a different. It includes the switch of information from inside RAM and SFR location with out passing by means of the accumulator. The examples of information switch directions embody the MOV vacation spot, supply, XCHD, XCH, PUSH and POP.
The arithmetic directions of the 8051 Microcontroller carry out the arithmetic directions equivalent to subtraction, multiplication, division and addition. The superior arithmetic directions contain operations equivalent to increment, decrement and adjustment of decimal operations. The examples of the arithmetic directions embody ADD A, byte, DAA, DEC byte, INC byte, DIV AB and MUL AB.
The logical directions carry out logical directions between the vacation spot byte and the supply byte. The logical directions carry out Boolean operations equivalent to OR, XOR, and NOT. The examples of logical directions embody; ANL destination-origin, ORL destination-origin, and XRL destination-origin.
On the different hand, the bit manipulation directions are employed in the manipulation of the values of the specified bit. The directions reset, set or complement the worth of the vacation spot bit. The examples of the bit manipulations directions are CLR bit, SETB bit, and CPL bit.
This system branching directions management the stream of program execution. Some of the directions are additionally utilized in offering decision-making capabilities earlier than the course of of switch of management to different components of the program. Examples embody LJMP, AJMP, JZ and JNZ amongst others.
Reference
Ravi, Manisha, Manisha, John, John, Srivastava, D., … Will. (2017, December 25). 8051 Microcontroller Instruction Set Addressing Modes. Retrieved January 21, 2020, from https://www.electronicshub.org/8051-microcontroller-instruction-set/
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