modf_arm64.s

Documentation: math

     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)
     8TEXT ·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

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