Using floating-point arithmetic

The ARM compiler provides many features for managing floating-point arithmetic both in software and in hardware. For example, you can specify software or hardware support for floating-point, particular hardware architectures, and the level of conformance to IEEE floating‑point standards.

The selection of floating‑point options determines various trade-offs between floating-point performance, system cost, and system flexibility. To obtain the best trade‑off between performance, cost, and flexibility, you need to make sensible choices in your selection of floating‑point options.