💥Make the common case fast! Don't miss 30% discount today on RISCV BootCamp. Link to order - https://vlsideepdive.com/the-complete-hands-on-bootcamp-on-riscv/ 👉The RISC-V instruction set makes the common case fast by including only simple, commonly used instructions. The number of instructions is kept small so that the hardware required to decode the instruction and its operands can be simple, small, and fast. More elaborate operations that are less common are performed using sequences of multiple simple instructions. Thus, RISC-V is a reduced instruction set computer (RISC) architecture. Architectures with many complex instructions, such as Intel’s x86 architecture, are complex instruction set computers (CISC). For example, x86 defines a “string move” instruction that copies a string (a series of characters) from one part of memory to another. Such an operation requires many, possibly even hundreds, of simple instructions in a RISC machine. However, the cost of implementing complex instructions in a CISC architecture is added hardware and overhead that slows down the simple instructions. 🧠A RISC architecture, such as RISC-V, minimizes the hardware complexity and the necessary instruction encoding by keeping the set of distinct instructions small. For example, an instruction set with 64 simple instructions would need log2(64) = 6 bits to encode the operation, whereas an instruction set with 256 instructions would need log2(256) = 8 bits of encoding per instruction. In a CISC machine, even though the complex instructions may be used only rarely, they add overhead to all instructions, even the simple ones.