Load/store architecture

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In computer engineering, a load/store architecture divides instructions into 2 categories: memory access (load and store between memory and registers), and ALU operations (which only occur between registers).[1]:9-12

RISC systems such as PowerPC, SPARC, RISC-V, ARM or MIPS use the load/store architecture.[1]:9-12

For instance, in a load/store approach both operands and destination for an ADD operation must be in registers. This differs from a register memory architecture (used by CISC designs such as x86) in which one of the operands for the ADD operation may be in memory, while the other is in a register.[1]:9-12

The earliest example of a load/store architecture was the CDC 6600.[1]:54-56 Almost all vector processors (including many GPUs[2]) use the load/store approach.[3]

See also[edit]

References[edit]

  1. ^ a b c d Michael J. Flynn (1995). Computer architecture: pipelined and parallel processor design. ISBN 0867202041. 
  2. ^ "AMD GCN reference" (PDF). 
  3. ^ Harvey G. Cragon (1996). Memory systems and pipelined processors. p. 512-513. ISBN 0867204745.