cpuid_x86.s

gnuradio软件无线电源程序.现在的手机多基于软件无线电

#	
# Copyright 2003 Free Software Foundation, Inc.
# 
# This file is part of GNU Radio
# 
# GNU Radio is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.
# 
# GNU Radio 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 General Public License for more details.
# 
# You should have received a copy of the GNU General Public License
# along with GNU Radio; see the file COPYING.  If not, write to
# the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
# Boston, MA 02111-1307, USA.
# 

#
# execute CPUID instruction, return EAX, EBX, ECX and EDX values in result
#
#  void cpuid_x86 (unsigned int op, unsigned int result[4]);
#
	.file "cpuid_x86.s"
	.version	"01.01"
.text
.globl	cpuid_x86
	.type	cpuid_x86,@function
cpuid_x86:	
	pushl	%ebp
	movl	%esp, %ebp
	pushl	%ebx		# must save in PIC mode, holds GOT pointer
	pushl	%esi
	
	movl	8(%ebp), %eax	# op
	movl	12(%ebp), %esi	# result
	cpuid
	movl	%eax, 0(%esi)
	movl	%ebx, 4(%esi)
	movl	%ecx, 8(%esi)
	movl	%edx, 12(%esi)
	
	popl	%esi
	popl	%ebx
	popl	%ebp
	ret
.Lfe1:
	.size	 cpuid_x86,.Lfe1-cpuid_x86
	.ident	"Hand coded cpuid assembly"