Superscalar processing could be added to any existing processor without having to recompile source code. Why?
What will be an ideal response?
Superscalar processing is all about computer organization (internal structure and implementation) and not about ISAs (instruction sets and addressing modes). A superscalar processor reads a batch of instructions into the CPU and then attempts to execute them in parallel using techniques such as register renaming and out?oforder execution. Because the instructions are retired in order, the superscalar processor appears to the programmer exactly like its non?superscalar equivalent; it’s just faster. Of course, some instruction sets might be easier to run on a superscalar processor than other instruction sets. In other words, superscalar techniques are concerned with enhancing a processor’s organization without having any effect on the semantics (meaning) of the code it executes.
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