5 ms·

""""Reduced"""" Instruction Set Computer?

• yjftsjthsd-h 6y ago
  From the Wikipedia page for RISC: """ Instruction set philosophy A common misunderstanding of the phrase "reduced instruction set computer" is the mistaken idea that instructions are simply eliminated, resulting in a smaller set of instructions.[2] In fact, over the years, RISC instruction sets have grown in size, and today many of them have a larger set of instructions than many CISC CPUs. [Snip] The term "reduced" in that phrase was intended to describe the fact that the amount of work any single instruction accomplishes is reduced—at most a single data memory cycle—compared to the "complex instructions" of CISC CPUs that may require dozens of data memory cycles in order to execute a single instruction.[23] In particular, RISC processors typically have separate instructions for I/O and data processing.[citation needed] The term load/store architecture is sometimes preferred. """
  • a1369209993 6y ago
    IOW, it's a Set of Reduced Instructions rather than a Reduced Set of Instructions? (aka (RI)SC rather than R(IS)C?)