mirror of
https://github.com/KolibriOS/kolibrios.git
synced 2024-12-13 18:37:08 +03:00
48 lines
1.3 KiB
C
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
|