9.18 Flush-to-zero mode in Advanced SIMD

Flush-to-zero mode replaces denormalized numbers with zero. This does not comply with IEEE 754 arithmetic, but in some circumstances can improve performance considerably.

Flush-to-zero mode in Advanced SIMD always preserves the sign bit.

Advanced SIMD always uses flush-to-zero mode.

Non-ConfidentialPDF file icon PDF versionDUI0801J
Copyright © 2014–2017, 2019 Arm Limited or its affiliates. All rights reserved.