cpu_asm.nasm
资源名称:tcpmp.rar [点击查看]
上传用户:wstnjxml
上传日期:2014-04-03
资源大小:7248k
文件大小:2k
源码类别:
Windows CE
开发平台:
C/C++
- ; libFLAC - Free Lossless Audio Codec library
- ; Copyright (C) 2001,2002,2003,2004,2005 Josh Coalson
- ;
- ; Redistribution and use in source and binary forms, with or without
- ; modification, are permitted provided that the following conditions
- ; are met:
- ;
- ; - Redistributions of source code must retain the above copyright
- ; notice, this list of conditions and the following disclaimer.
- ;
- ; - Redistributions in binary form must reproduce the above copyright
- ; notice, this list of conditions and the following disclaimer in the
- ; documentation and/or other materials provided with the distribution.
- ;
- ; - Neither the name of the Xiph.org Foundation nor the names of its
- ; contributors may be used to endorse or promote products derived from
- ; this software without specific prior written permission.
- ;
- ; THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- ; ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- ; LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- ; A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
- ; CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- ; EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- ; PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- ; PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- ; LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- ; NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- ; SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- %include "nasm.h"
- data_section
- cglobal FLAC__cpu_info_asm_ia32
- cglobal FLAC__cpu_info_extended_amd_asm_ia32
- cglobal FLAC__cpu_info_sse_test_asm_ia32
- code_section
- ; **********************************************************************
- ;
- have_cpuid:
- pushfd
- pop eax
- mov edx, eax
- xor eax, 0x00200000
- push eax
- popfd
- pushfd
- pop eax
- cmp eax, edx
- jz .no_cpuid
- mov eax, 1
- jmp .end
- .no_cpuid:
- xor eax, eax
- .end:
- ret
- cident FLAC__cpu_info_asm_ia32
- push ebx
- call have_cpuid
- test eax, eax
- jz .no_cpuid
- mov eax, 1
- cpuid
- mov eax, edx
- jmp .end
- .no_cpuid:
- xor eax, eax
- .end
- pop ebx
- ret
- cident FLAC__cpu_info_extended_amd_asm_ia32
- push ebx
- call have_cpuid
- test eax, eax
- jz .no_cpuid
- mov eax, 0x80000000
- cpuid
- cmp eax, 0x80000001
- jb .no_cpuid
- mov eax, 0x80000001
- cpuid
- mov eax, edx
- jmp .end
- .no_cpuid
- xor eax, eax
- .end
- pop ebx
- ret
- cident FLAC__cpu_info_sse_test_asm_ia32
- xorps xmm0, xmm0
- pop ebx
- end