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_486 1<<0
25 #define CPU_CAPABILITY_586 1<<1
26 #define CPU_CAPABILITY_PPRO 1<<2
27 #define CPU_CAPABILITY_MMX 1<<3
28 #define CPU_CAPABILITY_3DNOW 1<<4
29 #define CPU_CAPABILITY_MMXEXT 1<<5
31 /*****************************************************************************
32 * TestVersion: tests if the given string equals the current version
33 *****************************************************************************/
34 int TestVersion( char * psz_version );
35 int TestProgram( char * psz_program );
36 int TestMethod( char * psz_var, char * psz_method );
37 int TestCPU( int i_capabilities );
39 /*****************************************************************************
40 * CPUCapabilities: list the processors MMX support and other capabilities
41 *****************************************************************************
42 * This function is called to list extensions the CPU may have.
43 *****************************************************************************/
44 static __inline__ int CPUCapabilities( void )
47 return( CPU_CAPABILITY_NONE
50 | CPU_CAPABILITY_MMX );
52 int i_capabilities = CPU_CAPABILITY_NONE;
54 unsigned int i_eax, i_ebx, i_ecx, i_edx;
58 asm volatile ( "cpuid" \
66 /* test for a 486 CPU */
67 asm volatile ( "pushfl
82 return( i_capabilities );
85 i_capabilities |= CPU_CAPABILITY_486;
87 /* the CPU supports the CPUID instruction - get its level */
92 return( i_capabilities );
95 /* FIXME: this isn't correct, since some 486s have cpuid */
96 i_capabilities |= CPU_CAPABILITY_586;
98 /* borrowed from mpeg2dec */
99 b_amd = ( i_ebx == 0x68747541 ) && ( i_ecx == 0x444d4163 )
100 && ( i_edx == 0x69746e65 );
102 /* test for the MMX flag */
105 if( ! (i_edx & 0x00800000) )
107 return( i_capabilities );
110 i_capabilities |= CPU_CAPABILITY_MMX;
112 if( i_edx & 0x02000000 )
114 i_capabilities |= CPU_CAPABILITY_MMXEXT;
117 /* test for additional capabilities */
120 if( i_eax < 0x80000001 )
122 return( i_capabilities );
125 /* list these additional capabilities */
128 if( i_edx & 0x80000000 )
130 i_capabilities |= CPU_CAPABILITY_3DNOW;
133 if( b_amd && ( i_edx & 0x00400000 ) )
135 i_capabilities |= CPU_CAPABILITY_MMXEXT;
137 #endif /* __i386__ */
139 return( i_capabilities );
140 #endif /* SYS_BEOS */