src/libFLAC/ia32/cpu_asm.nasm

; libFLAC - Free Lossless Audio Codec library
; Copyright (C) 2001  Josh Coalson
;
; This library is free software; you can redistribute it and/or
; modify it under the terms of the GNU Library 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
; Library General Public License for more details.
;
; You should have received a copy of the GNU Library 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.

%include "nasm.h"

	data_section

cglobal FLAC__cpu_info_asm_ia32

	code_section

; **********************************************************************
;
	ALIGN 16
cident FLAC__cpu_info_asm_ia32

	push	ebx

	pushfd
	pop	eax
	mov	edx, eax
	xor	eax, 00200000h
	push	eax
	popfd
	pushfd
	pop	eax
	cmp	eax, edx
	jz	.no_cpuid
	mov	eax, 1
	cpuid
	mov	eax, edx
	jmp	short .end
.no_cpuid:
	xor	eax, eax			; return 0
.end:
	pop	ebx
	ret

end