How are even and odd addressed bytes accessed in 8086 memory address space?

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1287235

2026-03-05 19:45

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In the 8086 microprocessor, memory is organized into segments and can be accessed in bytes or Words. Even-addressed bytes are accessed directly using their address, while odd-addressed bytes are accessed through a combination of the even address and a specific instruction. For example, to access an odd byte, the CPU reads the Word containing that byte, performing a mask operation to isolate the desired odd byte. Since the 8086 is a 16-bit architecture, it can handle both even and odd addresses efficiently, ensuring proper alignment for data retrieval.

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