usat专题

【arm】armv8中通用寄存器的饱和指令实现(对标arm32:ssat,usat,qadd,qsub)

Date: 2018.9.7 1、参考: https://community.arm.com/processors/f/discussions/3330/how-aarch32-bit-applications-will-be-supported-on-aarch64 https://community.arm.com/processors/f/discussions/7521/what