/* * 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, see . */ .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