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The instruction mov bx, 24 in assembly language moves the immediate value 24 into the BX register. The possible machine instruction equivalent for this operation, assuming a 16-bit x86 architecture, would typically involve an opcode for moving an immediate value into a register, such as B8 18 00, where B8 is the opcode for moving an immediate value into the AX register, and 18 00 represents the little-endian format of the number 24. However, for the BX register specifically, the opcode would be BB, resulting in a machine code like BB 18 00.
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IS OPCODE FETCH MACHINE CYCLE ENOUGH FOR THE INTRUCTION MOV MA IN 8085 TIMING DIAGRAM?
In the 8085 microprocessor, the opcode fetch machine cycle is not sufficient on its own for executing the MOV MA instruction. While the opcode fetch cycle is responsible for retrieving the instruction from memory, additional machine cycles are required to perform the data transfer or execution of the instruction. Specifically, the MOV MA instruction involves both an opcode fetch cycle and a memory access cycle to complete the operation. Therefore, multiple machine cycles are necessary for executing this instruction effectively.
Why mov R1R2 is invalid instruction?
mov r1r2 is invalid instruction because of there is no communication with ALU in its operation;
Specify the opcode and operand in the instruction MOV HL?
mov H , L mov is opcode H L are operands
What is the MOV instruction of microcontroller PIC16F877A?
•The mov instruction carries out assignment in 8086 assembly language. •It which allows us place a number in a register or in a memory location (a variable) i.e. it assigns a value to a register or variable. Example: Store the ASCII code for the letter A in register bx.•A has ASCII code 65D (01000001B, 41H) •The following mov instruction carries out the task:•mov bx, 65d•We could also write it as:•mov bx, 41h•or mov bx, 01000001b•or mov bx, 'A'
What is 1 byte instruction in microprocessor?
1byte instruction = MOV A,B 2byte instruction = MVI A,01H 3byte instruction = STA 2030H
How many machine cycle required for the instance like move a b?
The MOV A,B instruction requires 1 machine cycle and 4 T-states, 3 to fetch the opcode, and 1 to decode/execute it.
Which instruction in 8086 microprocessor is 6 bytes long?
mov
What does this assembly code MOV FFE2?
Syntax error: incomplete instruction.
What is the ful form of mov?
The full form of MOV is "Move." In programming, MOV is an instruction that moves data from one location to another within the computer's memory or between different components of the computer.
When is the address in the instructional pointer updated?
This actually depends on the processor you are referencing; some processors update their IP (Instruction Pointer) before performing a command, and some perform it after the command. To find out if your processor is doing so before or after the command, use the instruction "mov ax,ip" in a debugger, and observe the value of ax. If ax contains the address of the mov instruction, it performs the update of IP after processing a command, while if it contains the address after the mov instruction, it performs the update before processing the command.
MOV Cx 1234H instruction belongs to which addressing mode?
The instruction MOV Cx, 1234H uses the immediate addressing mode. In this mode, the operand (1234H) is specified directly within the instruction itself. The value 1234H is moved directly into the CX register, making it an example of immediate data being loaded into a register.
What is the different between MOV and MVI in 8085?
In the 8085 microprocessor, the MOV instruction copies data between two registers, or between a register and memory. The MVI instruction differs only in that the source data is contained in the byte immediately following the opcode byte.
