Press "Enter" to skip to content

Start Searching the Answers

The Internet has many places to ask questions about anything imaginable and find past answers on almost everything.

How many clock cycles are required for each instruction sequence?

Each stage requires one clock cycle and an instruction passes through the stages sequentially.

How many T state is required to execute the instruction INR A?

10 T-States

Which instruction requires maximum time for execution?

CALL instruction

What does LDA instruction do when executed?

In 8085 Instruction set, LDA is a mnemonic that stands for LoaD Accumulator with the contents from memory. In this instructionAccumulatorwill get initialized with 8-bit content from the 16-bit memory address as indicated in the instruction as a16. This instruction uses absolute addressing for specifying the data.

What is the difference between LDA and STA?

LDA – Is for loading the accumulator. i.e) It is used to load the accumulator from the memory. (Data moves/will be copied from memory to accumulator ). STA – Is for storing the accumulator value to the memory location((Data moves/will be copied from accumulator to the memory ).

What are two steps of instruction execution?

decode instruction. evaluate address (address generation) fetch operands (read memory data) execute (ALU access)

What are the five steps in MIPS instruction execution?

In general, let the instruction execution be divided into five stages as fetch, decode, execute, memory access and write back, denoted by Fi, Di, Ei, Mi and Wi. Execution of a program consists of a sequence of these steps. When the first instruction’s decode happens, the second instruction’s fetch is done.

What are the 3 steps in which an instruction is executed?

It is composed of three main stages: the fetch stage, the decode stage, and the execute stage.

What are the basic instruction cycle stages?

In a basic computer, each instruction cycle consists of the following phases: Fetch instruction from memory. Decode the instruction. Execute the instruction.

What happens during instruction execution?

The instruction execution takes place in the CPU registers. The CPU reads (fetches) instructions (codes) from the memory one at a time, and executes or performs the operation specified by this. Instruction fetch involves reading of an instruction from a memory location to the CPU register.

What is instruction execution characteristics?

Characteristic of CISC – Instructions are larger than one-word size. Instruction may take more than a single clock cycle to get executed. Less number of general-purpose registers as operation get performed in memory itself. Complex Addressing Modes. More Data types.

Where are instructions executed?

The CPU is designed to understand a set of instructions – the instruction set. It fetches the instructions from the main memory and executes them. This is done repeatedly from when the computer is booted up to when it is shut down. The CPU fetches the instructions one at a time from the main memory into the registers.