The name "RISC" is something we gave to a particular design philosophy, but not everything in that philosophy is summed up in the name. Classic RISC designs have 32 registers to make up for the lack of instructions that operate directly on memory addresses and to make things easier for the compiler and achieve good performance without load-op-store instructions.
Comments
The name "RISC" is something we gave to a particular design philosophy, but not everything in that philosophy is summed up in the name. Classic RISC designs have 32 registers to make up for the lack of instructions that operate directly on memory addresses and to make things easier for the compiler and achieve good performance without load-op-store instructions.