What is an offset address?

What is an offset address?

In computer engineering and low-level programming (such as assembly language), an offset usually denotes the number of address locations added to a base address in order to get to a specific absolute address. In this context an offset is sometimes called a relative address.

How do I find my memory address and offset?

How to Calculate a Memory Address

1. Take your 16-bit segment and offset addresses and break them into pairs.
2. Add the two 20-bit addresses together in binary form to get the hexadecimal address of the memory.

What is the offset address and segment address?

A Segment Offset Address combines the starting address of a segment with an offset value. Segment and offset: Segments are special area defined in a program for containing the code, the data, and the stack.

Is logical address same as IP address?

IP Address works at the network layer of OSI model (actually the IP layer of TCP/IP model). This is a logical address (and not the embedded hardware address) which is assigned by the Network administrator or Internet service provider. Hence IP address may change each time you connect with the Internet.

What is the difference between logical address and virtual address?

Definition of Logical Address Address generated by CPU while a program is running is referred as Logical Address. The logical address is virtual as it does not exist physically. Hence, it is also called as Virtual Address. This address is used as a reference to access the physical memory location.

Is logical address unique?

Because they are unique, one IPv4 address defines just one connection of the computer the internet. There can never be more than one IPv4 address for two devices connected to the internet at the same time. If a device is connected to the internet through n connections, it is supposed to have n logical addresses.

What is logical address example?

In computing, a logical address is the address at which an item (memory cell, storage element, network host) appears to reside from the perspective of an executing application program. A logical address may be different from the physical address due to the operation of an address translator or mapping function.

What are the two parts of logical address?

A logical address consists of two parts: A page number in which the address resides, and an offset from the beginning of that page. ( The number of bits in the page number limits how many pages a single process can address.

How do you find physical and logical addresses?

HOW TO FIND LOGICAL ADDRESS AND PHYSICAL ADDRESS?

1. LOGICAL ADDRESS WHICH IS GENERATED BY CPU.
2. PHYSICAL ADDRESS WHICH IS GENERATED BY MEMORY UNIT.
3. A memory management system has 64 pages with 512 bytes page size. Physical memory consists of 32 page frames.
4. Solution:
5. LAS= 64*512 Bytes. = 2^15.

What is the difference between a port address a logical address and a physical address?

The port address is used to identify the particular application running on the destination machine. Logical Address: An IP address of the system is called logical address. This address is the combnation of Net ID and Host ID. The address of the NIC is called Physical address or mac address.