gtk/gdk-pixbuf/pixops/have_mmx.S
Matthias Clasen 242ecccb64 NetBSD portability fixes. (#346374, Thomas Klausner)
* pixops/*.S: NetBSD portability fixes.  (#346374,
        Thomas Klausner)
2006-07-02 15:28:33 +00:00

77 lines
1.5 KiB
ArmAsm

/*
* Copyright (C) 2000 Red Hat, Inc
*
* This 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 of the License, or (at your option) any later version.
*
* This 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 this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
.file "have_mmx.S"
.version "01.01"
gcc2_compiled.:
.text
.align 16
#if !defined(__MINGW32__) && !defined(__CYGWIN__) && !defined(__INTERIX)
/* Magic indicating no need for an executable stack */
#if !defined __powerpc64__ && !defined __ia64__
.section .note.GNU-stack; .previous
#endif
.globl _pixops_have_mmx
.type _pixops_have_mmx,@function
_pixops_have_mmx:
#else
.globl __pixops_have_mmx
__pixops_have_mmx:
#endif
push %ebx
# Check if bit 21 in flags word is writeable
pushfl
popl %eax
movl %eax,%ebx
xorl $0x00200000, %eax
pushl %eax
popfl
pushfl
popl %eax
cmpl %eax, %ebx
je .notfound
# OK, we have CPUID
movl $1, %eax
cpuid
test $0x00800000, %edx
jz .notfound
movl $1, %eax
jmp .out
.notfound:
movl $0, %eax
.out:
popl %ebx
ret