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load/store architecture

A design where only load and store instructions touch memory; arithmetic works on registers only. ARM64 and RISC-V work this way.

In a load/store architecture memory is accessed only by load and store instructions; computational instructions take register (and immediate) operands.

Examples

  • ARM64 adds a value in memory with three instructions, ldr, add, str; x86-64 can do it with one add [rdi], rax.

See also

register-memory architecture memory operand
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