void find_cpu_mode(void){
int f;
if(Cpu_mode != UNKNOWN)
return;
else
Cpu_mode = PORT;
#ifdef __i386__
/* Figure out what kind of CPU we have */
f = cpu_features();
if(f & (1<<26)){ /* SSE2 is present */
Cpu_mode = SSE2;
} else if(f & (1<<25)){ /* SSE is present */
Cpu_mode = SSE;
} else if(f & (1<<23)){ /* MMX is present */
Cpu_mode = MMX;
}
#endif
//#ifdef __VEC__
#if 0
// This looks very Linux specific
{
/* Ask the OS if we have Altivec support */
int selectors[2] = { CTL_HW, HW_VECTORUNIT };
int hasVectorUnit = 0;
size_t length = sizeof(hasVectorUnit);
int error = sysctl(selectors, 2, &hasVectorUnit, &length, NULL, 0);
if(0 == error && hasVectorUnit)
Cpu_mode = ALTIVEC;
}
#endif
fprintf(stderr,"SIMD CPU detect: %s\n",Cpu_modes[Cpu_mode]);
}
void find_cpu_mode(void) {
int f;
if(Cpu_mode != UNKNOWN)
return;
/* Figure out what kind of CPU we have */
f = cpu_features();
if(f & (1<<26)) { /* SSE2 is present */
Cpu_mode = SSE2;
} else if(f & (1<<25)) { /* SSE is present */
Cpu_mode = SSE;
} else if(f & (1<<23)) { /* MMX is present */
Cpu_mode = MMX;
} else { /* No SIMD at all */
Cpu_mode = PORT;
}
fprintf(stderr,"SIMD CPU detect: %s\n",Cpu_modes[Cpu_mode]);
}
void VM_Version::print_features() {
tty->print_cr("Version:%s", cpu_features());
}
