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562
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1 /*
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2 getcpucpuflags: get cpuflags for ia32
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3
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4 copyright ?-2007 by the mpg123 project - free software under the terms of the LGPL 2.1
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5 see COPYING and AUTHORS files in distribution or http:#mpg123.org
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6 initially written by KIMURA Takuhiro (for 3DNow!)
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7 extended for general use by Thomas Orgis
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8 */
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9
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10 #ifndef MPG123_H_GETCPUFLAGS
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11 #define MPG123_H_GETCPUFLAGS
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12
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13 /* standard level flags part 1 (ECX)*/
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14 #define FLAG_SSE3 0x00000001
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15
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16 /* standard level flags part 2 (EDX) */
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17 #define FLAG2_MMX 0x00800000
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18 #define FLAG2_SSE 0x02000000
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19 #define FLAG2_SSE2 0x04000000
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20 #define FLAG2_FPU 0x00000001
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21 /* cpuid extended level 1 (AMD) */
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22 #define XFLAG_MMX 0x00800000
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23 #define XFLAG_3DNOW 0x80000000
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24 #define XFLAG_3DNOWEXT 0x40000000
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25
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26 struct cpuflags
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27 {
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28 unsigned int id;
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29 unsigned int std;
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30 unsigned int std2;
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31 unsigned int ext;
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32 };
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33
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34 extern struct cpuflags cpu_flags;
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35
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36 unsigned int getcpuflags(struct cpuflags* cf);
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37
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38 /* checks the family */
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39 #define cpu_i586(s) ( ((s.id & 0xf00)>>8) == 0 || ((s.id & 0xf00)>>8) > 4 )
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40 /* checking some flags... */
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41 #define cpu_fpu(s) (FLAG2_FPU & s.std2)
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42 #define cpu_mmx(s) (FLAG2_MMX & s.std2 || XFLAG_MMX & s.ext)
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43 #define cpu_3dnow(s) (XFLAG_3DNOW & s.ext)
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44 #define cpu_3dnowext(s) (XFLAG_3DNOWEXT & s.ext)
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45 #define cpu_sse(s) (FLAG2_SSE & s.std2)
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46 #define cpu_sse2(s) (FLAG2_SSE2 & s.std2)
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47 #define cpu_sse3(s) (FLAG_SSE3 & s.std)
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48
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49 #endif
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