kolibrios-gitea/programs/develop/libraries/libmpg123/getcpuflags.h
Sergey Semyonov (Serge) 2217a37e5b libmpg123 1.15.4
git-svn-id: svn://kolibrios.org@3960 a494cfbc-eb01-0410-851d-a64ba20cac60
2013-10-02 16:44:03 +00:00

48 lines
1.3 KiB
C

/*
getcpucpuflags: get cpuflags for ia32
copyright ?-2007 by the mpg123 project - free software under the terms of the LGPL 2.1
see COPYING and AUTHORS files in distribution or http:#mpg123.org
initially written by KIMURA Takuhiro (for 3DNow!)
extended for general use by Thomas Orgis
*/
#ifndef MPG123_H_GETCPUFLAGS
#define MPG123_H_GETCPUFLAGS
/* standard level flags part 1 (ECX)*/
#define FLAG_SSE3 0x00000001
/* standard level flags part 2 (EDX) */
#define FLAG2_MMX 0x00800000
#define FLAG2_SSE 0x02000000
#define FLAG2_SSE2 0x04000000
#define FLAG2_FPU 0x00000001
/* cpuid extended level 1 (AMD) */
#define XFLAG_MMX 0x00800000
#define XFLAG_3DNOW 0x80000000
#define XFLAG_3DNOWEXT 0x40000000
struct cpuflags
{
unsigned int id;
unsigned int std;
unsigned int std2;
unsigned int ext;
};
unsigned int getcpuflags(struct cpuflags* cf);
/* checks the family */
#define cpu_i586(s) ( ((s.id & 0xf00)>>8) == 0 || ((s.id & 0xf00)>>8) > 4 )
/* checking some flags... */
#define cpu_fpu(s) (FLAG2_FPU & s.std2)
#define cpu_mmx(s) (FLAG2_MMX & s.std2 || XFLAG_MMX & s.ext)
#define cpu_3dnow(s) (XFLAG_3DNOW & s.ext)
#define cpu_3dnowext(s) (XFLAG_3DNOWEXT & s.ext)
#define cpu_sse(s) (FLAG2_SSE & s.std2)
#define cpu_sse2(s) (FLAG2_SSE2 & s.std2)
#define cpu_sse3(s) (FLAG_SSE3 & s.std)
#endif