The Architecture for the Digital World
Arm architecture forms the basis for every Arm processor. The Arm architecture is similar to a Reduced Instruction Set Computer (RISC) architecture, as it incorporates these typical RISC architecture features:
- A uniform register file load/store architecture, where data processing operates only on register contents, not directly on memory contents.
- Simple addressing modes, where all load/store addresses are only determined from register contents and instruction fields.
Over time, the Arm architecture has evolved to include architectural features to meet the growing demand for new functionality, high performance and the needs of new and emerging markets, establishing it as the leading architecture in many market segments. It supports a very broad range of performance points leading to very small implementations of Arm processors, and very efficient implementations of advanced designs using state of the art micro-architecture techniques. Key attributes of the Arm architecture are implementation size, performance, and low power consumption.