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编 译 器 特 有 的 功 能unsigned int __shadd16(unsigned int, unsigned int)unsigned int __shadd8(unsigned int, unsigned int)unsigned int __shasx(unsigned int, unsigned int)unsigned int __shsax(unsigned int, unsigned int)unsigned int __shsub16(unsigned int, unsigned int)unsigned int __shsub8(unsigned int, unsigned int)unsigned int __smlad(unsigned int, unsigned int, unsigned int)unsigned long long __smlald(unsigned int, unsigned int, unsigned long long)unsigned int __smlsd(unsigned int, unsigned int, unsigned int)unsigned long long __smlsld(unsigned int, unsigned int, unsigned long long)unsigned int __smuad(unsigned int, unsigned int)unsigned int __smusd(unsigned int, unsigned int)unsigned int __ssat16(unsigned int, unsigned int)unsigned int __ssax(unsigned int, unsigned int)unsigned int __ssub16(unsigned int, unsigned int)unsigned int __ssub8(unsigned int, unsigned int)unsigned int __sxtab16(unsigned int, unsigned int)unsigned int __sxtb16(unsigned int, unsigned int)unsigned int __uadd16(unsigned int, unsigned int)unsigned int __uadd8(unsigned int, unsigned int)unsigned int __uasx(unsigned int, unsigned int)unsigned int __uhadd16(unsigned int, unsigned int)unsigned int __uhadd8(unsigned int, unsigned int)unsigned int __uhasx(unsigned int, unsigned int)unsigned int __uhsax(unsigned int, unsigned int)unsigned int __uhsub16(unsigned int, unsigned int)unsigned int __uhsub8(unsigned int, unsigned int)unsigned int __uqadd16(unsigned int, unsigned int)unsigned int __uqadd8(unsigned int, unsigned int)unsigned int __uqasx(unsigned int, unsigned int)unsigned int __uqsax(unsigned int, unsigned int)unsigned int __uqsub16(unsigned int, unsigned int)unsigned int __uqsub8(unsigned int, unsigned int)unsigned int __usad8(unsigned int, unsigned int)unsigned int __usada8(unsigned int, unsigned int, unsigned int)unsigned int __usax(unsigned int, unsigned int)unsigned int __usat16(unsigned int, unsigned int)unsigned int __usub16(unsigned int, unsigned int)unsigned int __usub8(unsigned int, unsigned int)unsigned int __uxtab16(unsigned int, unsigned int)unsigned int __uxtb16(unsigned int, unsigned int)另 请 参 阅• 第 4-108 页 的 已 命 名 的 寄 存 器 变 量• 《 汇 编 器 指 南 》 中 第 2-6 页 的 寄 存 器• 《 汇 编 器 指 南 》 中 第 4-61 页 的 SEL• 《 汇 编 器 指 南 》 中 的 第 5 章 NEON 和 VFP 编 程 。4-104 Copyright © 2007-2009 ARM Limited. All rights reserved. ARM DUI 0348BCNon-Confidential, Unrestricted AccessID090708