glibc/sysdeps/powerpc/powerpc64/fpu/s_rintf.S

49 lines
1.5 KiB
ArmAsm

/* Round float to int floating-point values. PowerPC64 version.
Copyright (C) 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <sysdep.h>
.section ".toc","aw"
.LC0: /* 2**23 */
.tc FD_41600000_0[TC],0x4160000000000000
.section ".text"
ENTRY (__rintf)
CALL_MCOUNT 0
lfd fp13,.LC0@toc(2)
fabs fp0,fp1
fsubs fp12,fp13,fp13 /* generate 0.0 */
fcmpu cr7,fp0,fp13 /* if (fabs(x) > TWO23) */
fcmpu cr6,fp1,fp12 /* if (x > 0.0) */
bnllr- cr7
bng- cr6,.L4
fadds fp1,fp1,fp13 /* x+= TWO23; */
fsubs fp1,fp1,fp13 /* x-= TWO23; */
blr
.L4:
bnllr- cr6 /* if (x < 0.0) */
fsubs fp1,fp13,fp1 /* x = TWO23 - x; */
fsubs fp0,fp1,fp13 /* x = - (x - TWO23); */
fneg fp1,fp0
blr
END (__rintf)
weak_alias (__rintf, rintf)