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What is the difference between instruction cycle and machine cycle?
an instruction cycle may consist of a number of machine cycles.
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.
define the Fetch-Execute cycle?
the Fetch-Execute cycle is the process by which a computer retrieves a programmed instruction from its memory, determines what actions the instruction dictates, and carries out those actions.
What are The process the CPU performs for each program instruction is called the?
Machine cycle
Which step of the machine cycle retrieves the next program instruction from memory?
fetch
What is an instruction phase together with the execution phase called?
The instruction phase together with the execution phase is called a "Machine Cycle".
What are the types of machine cycle?
The machine cycle, also known as the instruction cycle, typically consists of four main stages: fetch, decode, execute, and store. During the fetch stage, the CPU retrieves an instruction from memory. In the decode stage, the instruction is interpreted to understand what actions are required. The execute stage carries out the instruction, and finally, the store stage saves the results back into memory.
What is a cycling machine?
Each time the CPU executes an instruction, it takes a series of steps. The complete series of steps is called a machine cycle. A machine cycle can be divided into two smaller cycles. These are instruction cycle and execution cycle. Instruction cycle: In instruction cycle CPU takes two steps-- 1. Fetching: Before the CPU can execute an instruction, the control unit must retrieve or fetch a command or data from the computer's memory. 2. Decoding: Before a command can be executed, the control unit must decode the command into instruction set. Execution cycle: In execution cycle CPU also takes two steps-- 1. Executing: When the command is executed, the CPU carried out the instructions in order by converting them into macrocode. 2. Storing: The CPU may be required to store the result of an instruction in memory.
Why DAD instruction in 8085 used three machine cycle?
1 machine cycle for opcode fetch 2nd n 3rd are idle machine cycles as microprocessor is 8 bit therefore it cant perform 16 bit additon in one cycle !!
How many t states are required for opcode fetch machine cycle at the execution of sequential instruction?
three
Is a machine cycle step that is refer to the process of obtaining a program instruction or data item from memory?
Fetch.
What is instruction cycle with interrupts?
The instruction cycle is the basic operation cycle in a computer. This is what will take in data, process it and execute as required.
