diff options
Diffstat (limited to 'sysdeps/i386/fpu/s_frexp.S')
| -rw-r--r-- | sysdeps/i386/fpu/s_frexp.S | 83 |
1 files changed, 0 insertions, 83 deletions
diff --git a/sysdeps/i386/fpu/s_frexp.S b/sysdeps/i386/fpu/s_frexp.S deleted file mode 100644 index 104f733bf6..0000000000 --- a/sysdeps/i386/fpu/s_frexp.S +++ /dev/null @@ -1,83 +0,0 @@ -/* ix87 specific frexp implementation for double. - Copyright (C) 1997-2017 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997. - - 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, see - <http://www.gnu.org/licenses/>. */ - -#include <machine/asm.h> - - .section .rodata - - .align ALIGNARG(4) - .type two54,@object -two54: .byte 0, 0, 0, 0, 0, 0, 0x50, 0x43 - ASM_SIZE_DIRECTIVE(two54) - -#ifdef PIC -#define MO(op) op##@GOTOFF(%edx) -#else -#define MO(op) op -#endif - -#define PARMS 4 /* no space for saved regs */ -#define VAL0 PARMS -#define VAL1 VAL0+4 -#define EXPP VAL1+4 - - .text -ENTRY (__frexp) - - movl VAL0(%esp), %ecx - movl VAL1(%esp), %eax - movl %eax, %edx - andl $0x7fffffff, %eax - orl %eax, %ecx - jz 1f - xorl %ecx, %ecx - cmpl $0x7ff00000, %eax - jae 1f - - cmpl $0x00100000, %eax - jae 2f - - fldl VAL0(%esp) -#ifdef PIC - LOAD_PIC_REG (dx) -#endif - fmull MO(two54) - movl $-54, %ecx - fstpl VAL0(%esp) - fwait - movl VAL1(%esp), %eax - movl %eax, %edx - andl $0x7fffffff, %eax - -2: shrl $20, %eax - andl $0x800fffff, %edx - subl $1022, %eax - orl $0x3fe00000, %edx - addl %eax, %ecx - movl %edx, VAL1(%esp) - - /* Store %ecx in the variable pointed to by the second argument, - get the factor from the stack and return. */ -1: movl EXPP(%esp), %eax - fldl VAL0(%esp) - movl %ecx, (%eax) - - ret -END (__frexp) -weak_alias (__frexp, frexp) |