modf_arm64.s raw

   1  // Copyright 2016 The Go Authors. All rights reserved.
   2  // Use of this source code is governed by a BSD-style
   3  // license that can be found in the LICENSE file.
   4  
   5  #include "textflag.h"
   6  
   7  // func archModf(f float64) (int float64, frac float64)
   8  TEXT ·archModf(SB),NOSPLIT,$0
   9  	MOVD	f+0(FP), R0
  10  	FMOVD	R0, F0
  11  	FRINTZD	F0, F1
  12  	FMOVD	F1, int+8(FP)
  13  	FSUBD	F1, F0
  14  	FMOVD	F0, R1
  15  	AND	$(1<<63), R0
  16  	ORR	R0, R1 // must have same sign
  17  	MOVD	R1, frac+16(FP)
  18  	RET
  19