Table of Contents
- 1 What is the value of the instruction pointer after the sequence executes?
- 2 What is the length of instruction pointer?
- 3 What is return instruction pointer?
- 4 What is the difference between SP and BP?
- 5 What is stored in instruction pointer?
- 6 What is instruction pointer and instruction register?
- 7 How is the value of IP (instruction pointer) pushed into the stack?
- 8 What is the IP address of the current instruction?
What is the value of the instruction pointer after the sequence executes?
In most processors, the instruction pointer is incremented after fetching an instruction, and holds the memory address of (“points to”) the next instruction that would be executed.
What is the length of instruction pointer?
The Instruction Pointer is ______ bits in length. Explanation: 8086 microprocessor is a 16-bit microprocessor and all the registers of 8086 are 16-bit registers. So, Instruction pointer is a 16 bit register.
What is instruction pointer in assembly language?
[in′strək·shən ‚pȯint·ər] (computer science) A component of a task descriptor that designates the next instruction to be executed by the task. An element of the control component of the stack model of block structure execution, which points to the current instruction.
What is the function purpose of instruction pointer IP?
The program counter (PC), commonly called the instruction pointer (IP) in Intel x86 and Itanium microprocessors, and sometimes called the instruction address register (IAR), the instruction counter, or just part of the instruction sequencer, is a processor register that indicates where a computer is in its program …
What is return instruction pointer?
Closed 4 years ago. I know that when a routine is called, the processor stores the memory address of the code that called the routine so that it knows where to go to continue execution when the called routine “returns.” This address (named the return instruction pointer) is stored on the stack.
What is the difference between SP and BP?
BP is base pointer, SP is stack pointer, and IP is instruction pointer. Usually BP is used for preserving space to use local variables. SP is used to point the current stack. Although SP can be modified easily, you must be cautious.
What is the function of execution unit?
EU (Execution Unit) Execution unit gives instructions to BIU stating from where to fetch the data and then decode and execute those instructions. Its function is to control operations on data using the instruction decoder & ALU.
Which of the following is used to sequence the execution of instructions?
Discussion Forum
| Que. | The instructions that change the sequence of execution are |
|---|---|
| b. | logical instructions |
| c. | control transfer instructions |
| d. | data transfer instructions |
| Answer:control transfer instructions |
What is stored in instruction pointer?
A instruction pointer is a register in a computer processor that contains the address (location) of the instruction being executed at the current time. As each instruction gets fetched, the instruction pointer increases its stored value by 1.
What is instruction pointer and instruction register?
The instruction pointer register is a control register that holds the location of the next instruction in a pipeline, and increments itself after every instruction. If every instructions had a size of 3 bytes (operands included), the instruction pointer would be incremented by 3 after each instruction is executed.
What is the difference between EIP and Rip?
Remember that EIP is the instruction pointer or program counter of 32 bit processes and RIP is the instruction pointer or program counter of 64 bit processes.
What happens upon the execution of a RET instruction?
RET stands for RETURN from the Subroutine. After execution of this instruction program, control is transferred back to the main program from where it had stopped. It Transfers program control to a return address located on the top of the stack.
How is the value of IP (instruction pointer) pushed into the stack?
The value of IP (Instruction Pointer) is pushed into the stack. IP is loaded from word location (Interrupt type) * 04. CS is loaded from the next word location. Interrupt and Trap flag are reset to 0. The different types of interrupts present in 8086 microprocessor are given by:
What is the IP address of the current instruction?
The address of the current instruction is kept in the Instruction Pointer (IP) register, which is sometimes called the Program Counter (PC). After the instruction is fetched from memory, the IP/PC is incremented by the length of the current instruction (to point to the next instruction).
What is the difference between code segment register and instruction pointer?
The code segment register holds the upper 16 bits of the starting address of the segment from which the BIU is currently fetching the instruction code byte. Now the instruction pointer comes in picture. This register is responsible for holding the 16 bit offset, of the next code byte within this code segment.
What is the instruction pointer in 8086 microprocessor?
The Instruction Pointer in 8086. The code segment register holds the upper 16 bits of the starting address of the segment from which the BIU is currently fetching the instruction code byte. Now the instruction pointer comes in picture. This register is responsible for holding the 16 bit offset, of the next code byte within this code segment.