divsf3vfp.S revision b4b1e8c5085cf83a50242057775a33ae4323d402
1d47c2cfb86a7d9746f7665a73fa25a724c4ce354Nick Kledzik//===-- divsf3vfp.S - Implement divsf3vfp ---------------------------------===// 2d47c2cfb86a7d9746f7665a73fa25a724c4ce354Nick Kledzik// 3d47c2cfb86a7d9746f7665a73fa25a724c4ce354Nick Kledzik// The LLVM Compiler Infrastructure 4d47c2cfb86a7d9746f7665a73fa25a724c4ce354Nick Kledzik// 5d47c2cfb86a7d9746f7665a73fa25a724c4ce354Nick Kledzik// This file is distributed under the University of Illinois Open Source 6d47c2cfb86a7d9746f7665a73fa25a724c4ce354Nick Kledzik// License. See LICENSE.TXT for details. 7d47c2cfb86a7d9746f7665a73fa25a724c4ce354Nick Kledzik// 8d47c2cfb86a7d9746f7665a73fa25a724c4ce354Nick Kledzik//===----------------------------------------------------------------------===// 9d47c2cfb86a7d9746f7665a73fa25a724c4ce354Nick Kledzik 1019336a2d6b9b375ac106125950f4ff09742d1aecDaniel Dunbar#include "../assembly.h" 11d47c2cfb86a7d9746f7665a73fa25a724c4ce354Nick Kledzik 12d47c2cfb86a7d9746f7665a73fa25a724c4ce354Nick Kledzik// 13d47c2cfb86a7d9746f7665a73fa25a724c4ce354Nick Kledzik// extern float __divsf3vfp(float a, float b); 14d47c2cfb86a7d9746f7665a73fa25a724c4ce354Nick Kledzik// 15d47c2cfb86a7d9746f7665a73fa25a724c4ce354Nick Kledzik// Divides two single precision floating point numbers using the Darwin 16d47c2cfb86a7d9746f7665a73fa25a724c4ce354Nick Kledzik// calling convention where single arguments are passsed like 32-bit ints. 17d47c2cfb86a7d9746f7665a73fa25a724c4ce354Nick Kledzik// 18b4b1e8c5085cf83a50242057775a33ae4323d402Daniel DunbarDEFINE_COMPILERRT_FUNCTION(__divsf3vfp) 19d47c2cfb86a7d9746f7665a73fa25a724c4ce354Nick Kledzik fmsr s14, r0 // move first param from r0 into float register 20d47c2cfb86a7d9746f7665a73fa25a724c4ce354Nick Kledzik fmsr s15, r1 // move second param from r1 into float register 21d47c2cfb86a7d9746f7665a73fa25a724c4ce354Nick Kledzik fdivs s13, s14, s15 22d47c2cfb86a7d9746f7665a73fa25a724c4ce354Nick Kledzik fmrs r0, s13 // move result back to r0 23d47c2cfb86a7d9746f7665a73fa25a724c4ce354Nick Kledzik bx lr 24