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final fix? 

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@2289 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
arpi 2001-10-19 14:02:12 +00:00
parent 4f8c49ce01
commit 73ac31380d
1 changed files with 34 additions and 70 deletions
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104
cpudetect.c
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@ -86,83 +86,35 @@ void GetCpuCaps( CpuCaps *caps)
unsigned int regs2[4];
bzero(caps, sizeof(*caps));
printf("CPUid available: %s\n",has_cpuid()?"yes":"no");
/*if (!has_cpuid())
return;*/
do_cpuid(0x00000000, regs);
printf("CPU vendor name: %.4s%.4s%.4s cpuid level: %d\n",&regs[1],&regs[3],&regs[2],regs[0]);
if (regs[0]>0x00000001)
if (!has_cpuid()) {
printf("CPUID not supported!???\n");
return;
}
do_cpuid(0x00000000, regs); // get _max_ cpuid level and vendor name
printf("CPU vendor name: %.4s%.4s%.4s max cpuid level: %d\n",&regs[1],&regs[3],&regs[2],regs[0]);
if (regs[0]>=0x00000001)
{
do_cpuid(0x00000001, regs2);
printf("CPU family: %d\n",(regs2[0] >> 8)&0xf);
switch ((regs2[0] >> 8)&0xf) {
case 3:
caps->cpuType=CPUTYPE_I386;
break;
case 4:
caps->cpuType=CPUTYPE_I486;
break;
case 5:
caps->cpuType=CPUTYPE_I586;
break;
case 6:
caps->cpuType=CPUTYPE_I686;
break;
default:
caps->cpuType=CPUTYPE_I386;
printf("Unknown cpu type, default to i386\n");
break;
caps->cpuType=(regs2[0] >> 8)&0xf;
if(caps->cpuType==0xf){
// use extended family (P4, IA64)
caps->cpuType=8+((regs2[0]>>20)&255);
}
// general feature flags:
caps->hasMMX = (regs2[3] & (1 << 23 )) >> 23; // 0x0800000
// FIXME: is this ok for non-intel CPUs too? (cyrix,amd)
caps->hasSSE = (regs2[3] & (1 << 25 )) >> 25; // 0x2000000
caps->hasSSE2 = (regs2[3] & (1 << 26 )) >> 26; // 0x4000000
/* FIXME: Does SSE2 need more OS support, too? */
#if defined(__linux__) || defined(__FreeBSD__)
if (caps->hasSSE)
check_os_katmai_support();
if (!caps->hasSSE)
caps->hasSSE2 = 0;
#else
caps->hasSSE=0;
caps->hasSSE2 = 0;
#endif
/* FIXME: Are MMX2 ops on the same set of processors as SSE? Do they need OS support?*/
caps->hasMMX2 = caps->hasSSE;
caps->hasMMX2 = caps->hasSSE; // SSE cpus supports mmxext too
}
if (regs[1] == 0x68747541 && // AuthenticAMD
regs[3] == 0x69746e65 &&
regs[2] == 0x444d4163) {
do_cpuid(0x00000001, regs2);
printf("CPU family: %d\n",(regs2[0] >> 8)&0xf);
switch ((regs2[0] >> 8)&0xf) {
case 3:
caps->cpuType=CPUTYPE_I386;
break;
case 4:
caps->cpuType=CPUTYPE_I486;
break;
case 5:
caps->cpuType=CPUTYPE_I586;
break;
case 6:
caps->cpuType=CPUTYPE_I686;
break;
default:
caps->cpuType=CPUTYPE_I386;
printf("Unknown cpu type, default to i386\n");
break;
}
do_cpuid(0x80000000, regs);
printf("AMD cpuid-level: 0x%X\n",regs[0]);
if (regs[0]>=0x80000001) {
do_cpuid(0x80000001, regs2);
caps->hasMMX = (regs2[3] & (1 << 23 )) >> 23; // 0x0800000
caps->hasMMX2 = (regs2[3] & (1 << 22 )) >> 22; // 0x400000
caps->has3DNow = (regs2[3] & (1 << 31 )) >> 31; //0x80000000
caps->has3DNowExt = (regs2[3] & (1 << 30 )) >> 30;
}
do_cpuid(0x80000000, regs);
if (regs[0]>=0x80000001) {
printf("extended cpuid-level: %d\n",regs[0]&0x7FFFFFFF);
do_cpuid(0x80000001, regs2);
caps->hasMMX = (regs2[3] & (1 << 23 )) >> 23; // 0x0800000
caps->hasMMX2 = (regs2[3] & (1 << 22 )) >> 22; // 0x400000
caps->has3DNow = (regs2[3] & (1 << 31 )) >> 31; //0x80000000
caps->has3DNowExt = (regs2[3] & (1 << 30 )) >> 30;
}
#if 0
printf("cpudetect: MMX=%d MMX2=%d SSE=%d SSE2=%d 3DNow=%d 3DNowExt=%d\n",
@ -174,6 +126,18 @@ void GetCpuCaps( CpuCaps *caps)
gCpuCaps.has3DNowExt );
#endif
/* FIXME: Does SSE2 need more OS support, too? */
#if defined(__linux__) || defined(__FreeBSD__)
if (caps->hasSSE)
check_os_katmai_support();
if (!caps->hasSSE)
caps->hasSSE2 = 0;
#else
caps->hasSSE=0;
caps->hasSSE2 = 0;
#endif
}
#if defined(__linux__) && defined(_POSIX_SOURCE) && defined(X86_FXSR_MAGIC)