1 /* float ceil function. PowerPC64 version.
2 Copyright (C) 2004 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, write to the Free
17 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
24 .tc FD_41600000_0[TC],0x4160000000000000
26 .tc FD_80000000_0[TC],0x8000000000000000
31 mffs fp11 /* Save current FPU rounding mode. */
34 fsubs fp12,fp13,fp13 /* generate 0.0 */
35 fcmpu cr7,fp0,fp13 /* if (fabs(x) > TWO23) */
36 fcmpu cr6,fp1,fp12 /* if (x > 0.0) */
38 mtfsfi 7,2 /* Set rounding mode toward +inf. */
40 fadds fp1,fp1,fp13 /* x+= TWO23; */
41 fsubs fp1,fp1,fp13 /* x-= TWO23; */
43 mtfsf 0x01,fp11 /* restore previous rounding mode. */
46 bge- cr6,.L9 /* if (x < 0.0) */
47 fsubs fp1,fp1,fp13 /* x-= TWO23; */
48 fadds fp1,fp1,fp13 /* x+= TWO23; */
49 fcmpu cr5,fp1,fp12 /* if (x > 0.0) */
50 mtfsf 0x01,fp11 /* restore previous rounding mode. */
52 lfd fp1,.LC1@toc(2) /* x must be -0.0 for the 0.0 case. */
56 weak_alias (__ceilf, ceilf)