The 8086’s segmented memory architecture was an innovative solution to extend addressing beyond 64KB using familiar 16-bit registers combined with segment registers, enabling backward compatibility with 8080 code. However, developers preferred treating memory as a flat continuous space rather than true segments, which led to widespread use of normalized pointers and ultimately limited the architecture’s scalability. Intel’s original vision of opaque segment selectors could have sustained the design longer, but the practical demands and shortcuts taken by software broke this ideal, influencing the evolution of x86 memory management.
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