1; vim:filetype=nasm ts=8 2 3; libFLAC - Free Lossless Audio Codec library 4; Copyright (C) 2001-2009 Josh Coalson 5; Copyright (C) 2011-2016 Xiph.Org Foundation 6; 7; Redistribution and use in source and binary forms, with or without 8; modification, are permitted provided that the following conditions 9; are met: 10; 11; - Redistributions of source code must retain the above copyright 12; notice, this list of conditions and the following disclaimer. 13; 14; - Redistributions in binary form must reproduce the above copyright 15; notice, this list of conditions and the following disclaimer in the 16; documentation and/or other materials provided with the distribution. 17; 18; - Neither the name of the Xiph.org Foundation nor the names of its 19; contributors may be used to endorse or promote products derived from 20; this software without specific prior written permission. 21; 22; THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 23; ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 24; LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 25; A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR 26; CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 27; EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 28; PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 29; PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 30; LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 31; NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 32; SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 33 34%include "nasm.h" 35 36 data_section 37 38cglobal FLAC__cpu_have_cpuid_asm_ia32 39cglobal FLAC__cpu_info_asm_ia32 40 41 code_section 42 43; ********************************************************************** 44; 45; FLAC__uint32 FLAC__cpu_have_cpuid_asm_ia32() 46; 47 48cident FLAC__cpu_have_cpuid_asm_ia32 49 pushfd 50 pop eax 51 mov edx, eax 52 xor eax, 0x00200000 53 push eax 54 popfd 55 pushfd 56 pop eax 57 xor eax, edx 58 and eax, 0x00200000 59 shr eax, 0x15 60 push edx 61 popfd 62 ret 63 64 65; ********************************************************************** 66; 67; void FLAC__cpu_info_asm_ia32(FLAC__uint32 level, FLAC__uint32 *eax, FLAC__uint32 *ebx, FLAC__uint32 *ecx, FLAC__uint32 *edx) 68; 69 70cident FLAC__cpu_info_asm_ia32 71 ;[esp + 8] == level 72 ;[esp + 12] == flags_eax 73 ;[esp + 16] == flags_ebx 74 ;[esp + 20] == flags_ecx 75 ;[esp + 24] == flags_edx 76 77 push ebx 78 call FLAC__cpu_have_cpuid_asm_ia32 79 test eax, eax 80 jz .no_cpuid 81 82 mov eax, [esp + 8] 83 and eax, 0x80000000 84 cpuid 85 cmp eax, [esp + 8] 86 jb .no_cpuid 87 xor ecx, ecx 88 mov eax, [esp + 8] 89 cpuid 90 91 push ebx 92 ;[esp + 16] == flags_eax 93 mov ebx, [esp + 16] 94 mov [ebx], eax 95 pop eax 96 ;[esp + 16] == flags_ebx 97 mov ebx, [esp + 16] 98 mov [ebx], eax 99 mov ebx, [esp + 20] 100 mov [ebx], ecx 101 mov ebx, [esp + 24] 102 mov [ebx], edx 103 jmp .end 104 105.no_cpuid: 106 xor eax, eax 107 mov ebx, [esp + 12] 108 mov [ebx], eax 109 mov ebx, [esp + 16] 110 mov [ebx], eax 111 mov ebx, [esp + 20] 112 mov [ebx], eax 113 mov ebx, [esp + 24] 114 mov [ebx], eax 115.end: 116 pop ebx 117 ret 118 119; end 120