107 lines
3 KiB
NASM
107 lines
3 KiB
NASM
;*****************************************************************************
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;* cpu.asm: h264 encoder library
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;*****************************************************************************
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;* Copyright (C) 2003 x264 project
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;* $Id: cpu.asm,v 1.1 2004/06/03 19:27:07 fenrir Exp $
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;*
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;* Authors: Laurent Aimar <fenrir@via.ecp.fr>
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;*
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;* This program is CC_free software; you can redistribute it and/or modify
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;* it under the terms of the GNU General Public License as published by
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;* the Free Software Foundation; either version 2 of the License, or
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;* (at your option) any later version.
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;*
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;* This program is distributed in the hope that it will be useful,
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;* but WITHOUT ANY WARRANTY; without even the implied warranty of
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;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;* GNU General Public License for more details.
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;*
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;* You should have received a copy of the GNU General Public License
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;* along with this program; if not, write to the Free Software
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;* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
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;*****************************************************************************
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BITS 64
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;=============================================================================
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; Macros and other preprocessor constants
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;=============================================================================
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%include "amd64inc.asm"
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;=============================================================================
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; Code
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;=============================================================================
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SECTION .text
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cglobal x264_cpu_cpuid_test
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cglobal x264_cpu_cpuid
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cglobal x264_emms
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ALIGN 16
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;-----------------------------------------------------------------------------
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; int x264_cpu_cpuid_test( void ) return 0 if unsupported
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;-----------------------------------------------------------------------------
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x264_cpu_cpuid_test:
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firstpush rbx
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pushreg rbx
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push rbp
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pushreg rbp
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mov rbp, rsp
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setframe rbp, 0
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endprolog
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pushfq
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pop rax
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mov ebx, eax
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xor eax, 0x200000
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push rax
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popfq
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pushfq
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pop rax
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xor eax, ebx
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lea rsp, [rbp]
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pop rbp
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pop rbx
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ret
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endfunc
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ALIGN 16
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;-----------------------------------------------------------------------------
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; int x264_cpu_cpuid( int op, int *eax, int *ebx, int *ecx, int *edx )
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;-----------------------------------------------------------------------------
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x264_cpu_cpuid:
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firstpush rbx
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pushreg rbx
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endprolog
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mov r10, parm4q
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mov r11, parm3q
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mov r9, parm2q
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%ifdef WIN64
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mov r8, [rsp+40+8]
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%endif
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mov eax, parm1d
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cpuid
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mov [r9], eax
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mov [r11], ebx
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mov [r10], ecx
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mov [r8], edx
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pop rbx
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ret
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endfunc
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ALIGN 16
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;-----------------------------------------------------------------------------
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; void x264_emms( void )
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;-----------------------------------------------------------------------------
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x264_emms:
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emms
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ret
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