Segmentation
Segmentation Segmentation refers to the process of dividing a memory address space into smaller, logical units called segments . These segments are typic...
Segmentation Segmentation refers to the process of dividing a memory address space into smaller, logical units called segments . These segments are typic...
Segmentation
Segmentation refers to the process of dividing a memory address space into smaller, logical units called segments. These segments are typically contiguous blocks of memory, and they are used by the processor to store related data.
There are two main types of segments in an 8086 microprocessor:
Code segment: Contains instructions and data used by the program.
Data segment: Stores data that is being processed by the program.
The processor uses segmentation to access memory efficiently. By dividing the address space into segments, it can access data and instructions quickly and accurately. This allows the processor to perform operations much faster than it could if it had to access memory one address at a time.
Example:
Let's say we have a memory address space of 1000 bytes, and we want to divide it into two segments:
Code segment: 200-299 bytes
Data segment: 300-399 bytes
The processor can access the code segment and data segment independently, which allows it to execute instructions and access data much faster