void writecmos(u8 reg,u8 val)
{
u8 ifstate=((getcpuflags()&CPU_FLAGS_IF)!=0);
if(ifstate)disable_int();
int org=inb(0x70);
outb(0x70,(org&0b10000000)|(reg&0b01111111));
outb(0x71,val);
if(ifstate)enable_int();
}
u8 readcmos(u8 reg)
{
u8 ifstate=((getcpuflags()&CPU_FLAGS_IF)!=0);
if(ifstate)disable_int();
int org=inb(0x70);
outb(0x70,(org&0b10000000)|(reg&0b01111111));
u8 ret=inb(0x71);
if(ifstate)enable_int();
return ret;
}
int main()
{
int family;
struct cpuflags flags;
if(!getcpuflags(&flags)){ printf("CPU won't do cpuid (some old i386 or i486)\n"); return 0; }
family = (flags.id & 0xf00)>>8;
printf("family: %i\n", family);
printf("stdcpuflags: 0x%08x\n", flags.std);
printf("std2cpuflags: 0x%08x\n", flags.std2);
printf("extcpuflags: 0x%08x\n", flags.ext);
if(cpu_i586(flags))
{
printf("A i586 or better cpu with:");
if(cpu_mmx(flags)) printf(" mmx");
if(cpu_3dnow(flags)) printf(" 3dnow");
if(cpu_3dnowext(flags)) printf(" 3dnowext");
if(cpu_sse(flags)) printf(" sse");
if(cpu_sse2(flags)) printf(" sse2");
if(cpu_sse3(flags)) printf(" sse3");
printf("\n");
}
else printf("I guess you have some i486\n");
return 0;
}
