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RISC
The RISC design also restricts memory access: RISC microprocessors usually have a single instruction to read a word from memory, and another instruction to write a word to memory. Also, RISC microprocessors have a large amount of registers (usually > 32) which allows to store multiple data words inside the microprocessor itself, making its computations less memory-dependant and thus making up for the lack of memory accessibility.
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RISC
Reduced Instruction Set Computer (RISC)
A RISC microprocessor design provides a few instructions which are decoded and executed at high speeds by the microprocessor. Of course this makes programming a bit more difficult, because you have to write many instructions even for simple operations, but the execution speed usually pays back.The RISC design also restricts memory access: RISC microprocessors usually have a single instruction to read a word from memory, and another instruction to write a word to memory. Also, RISC microprocessors have a large amount of registers (usually > 32) which allows to store multiple data words inside the microprocessor itself, making its computations less memory-dependant and thus making up for the lack of memory accessibility.
See also:
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