How the processor identifies a code segment address?

How the processor identifies a code segment address?

Code segment register (CS): is used for addressing memory location in the code segment of the memory, where the executable program is stored. Data segment register (DS): points to the data segment of the memory where the data is stored.

How the physical address is generated in 8086?

The 8086 addresses a segmented memory. The complete physical address which is 20-bits long is generated using segment and offset registers each of the size 16-bit. The content of a segment register also called as segment address, and content of an offset register also called as offset address.

How is segmentation address calculated?

CS = 1111 H The base address of the code segment is 11110 H. Effective address of memory is given by 11110H + 1232H = 12342H. 2. DS = 3333 H The base address of the data segment is 33330 H.

How do I find my actual address?

To compute the physical address:

1. look up the page number in the page table and obtain the frame number.
2. to create the physical address, frame = 17 bits; offset = 12 bits; then 512 = 29. 1m = 220 => 0 – ( 229-1 ) if main memory is 512 k, then the physical address is 29 bits.

What is page fault linear address?

Paging occurs after the logical address has been resolved to a linear address. If paging is enabled, the linear address will be translated into a page frame number and offset, run through the page tables, then sent to the bus interface unit of the CPU. This process creates a virtual address space.

What is linear address?

In a linear address space, memory appears to a program as a single, continuous address space. An address for any byte in linear address space is called a linear address.

What are added to generate linear address?

Linear Adress,created by adding logical address to the base of segment, CS,DS,ES,SS,FSor GS. When Paging is enabled, the page tables are used to translate linear address to physical address.

What contains linear address?

The linear address for the base of the IDT is contained in the interrupt descriptor table register (IDTR). The IDT descriptor can contain one of three types of descriptor: task gate, interrupt gate, and trap gate. The IDT contains either an interrupt gate or trap gate descriptor for external interrupts.

How do I live without an address?

Alternatives for your physical address

1. Rent a P.O. Box. Head down to your local post office and rent a post office box.
2. Use your work address. If you have a day job with an office, talk to your employer about using the office address.
3. Ask a friend with a business.
4. Head to a UPS Store.
5. Try your co-working space.