Os Memory Management Questions
The process of address translation using a page table involves the following steps:
1. The virtual address generated by the CPU is divided into two parts: the page number and the offset within the page.
2. The page number is used as an index to access the page table, which is a data structure maintained by the operating system.
3. The page table contains the mapping between virtual pages and physical frames in the main memory.
4. The page table entry corresponding to the page number is retrieved from the page table.
5. The page table entry contains the physical frame number where the corresponding page is stored in the main memory.
6. The offset within the page is combined with the physical frame number to generate the physical address.
7. The physical address is then used to access the actual data in the main memory.
In summary, address translation using a page table involves dividing the virtual address into page number and offset, accessing the page table to retrieve the physical frame number, and combining it with the offset to generate the physical address for accessing the data in the main memory.