Microprocessor20815 marks8086
Explain about memory segment and segment register in 8086 microprocessor.
Explain about memory segment and segment register in 8086 microprocessor. [5]
The 8086 microprocessor has a 20-bit address bus, which allows it to address up to 2²⁰ = 1 MB (1,048,576 bytes) of physical memory. However, the internal registers of 8086 are only 16-bit wide, which can directly address only 2¹⁶ = 64 KB. To resolve this, the 8086 uses a technique called memory s...