gzdoom-gles/FLAC/ia32/cpu_asm.nasm

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NASM
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; 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 "ia32/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