1 /*****************************************************************************
2 * tests.h: several test functions needed by the plugins
3 *****************************************************************************
4 * Copyright (C) 1996, 1997, 1998, 1999, 2000 VideoLAN
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
21 *****************************************************************************/
23 #define CPU_CAPABILITY_NONE 0
24 #define CPU_CAPABILITY_MMX 1<<0
25 #define CPU_CAPABILITY_3DNOW 1<<1
26 #define CPU_CAPABILITY_MMXEXT 1<<2
28 #define cpuid( a, eax, ebx, ecx, edx ) \
29 asm volatile ( "pushl %%ebx \n\
38 /*****************************************************************************
39 * TestVersion: tests if the given string equals the current version
40 *****************************************************************************/
41 int TestVersion( char * psz_version );
42 int TestProgram( char * psz_program );
43 int TestMethod( char * psz_var, char * psz_method );
45 /*****************************************************************************
46 * TestCPU: tests if the processor has MMX support and other capabilities
47 *****************************************************************************
48 * This function is called to check extensions the CPU may have.
49 *****************************************************************************/
50 static __inline__ int TestCPU( void )
53 return( CPU_CAPABILITY_NONE );
55 int i_reg, i_dummy = 0;
57 /* test for a 386 CPU */
58 asm volatile ( "pushfl
72 return( CPU_CAPABILITY_NONE );
75 /* test for a 486 CPU */
76 asm volatile ( "movl %%ecx, %%eax
85 andl $0x200000, %%eax"
90 return( CPU_CAPABILITY_NONE );
93 /* the CPU supports the CPUID instruction - get its level */
94 cpuid( 0, i_reg, i_dummy, i_dummy, i_dummy );
98 return( CPU_CAPABILITY_NONE );
101 /* test for the MMX flag */
102 cpuid( 1, i_dummy, i_dummy, i_dummy, i_reg );
104 if( ! (i_reg & 0x00800000) )
106 return( CPU_CAPABILITY_NONE );
109 return( CPU_CAPABILITY_MMX );