Build your own: http://rayer.ic.cz/elektro/covox.htm sry, cz only.

RDTSC should't be hard to implement, just return dosbox cpu cycles in EDX:EAX:

OK. BTW do you plan to support higher CPUs? Maybe some latest games/demos/progs will require some 486/pentium features. But I'd rather to see DOSBox support dualcore CPUs (if it can gain performance) 😀

I have no special need of CPUID but I just want to notice when it is supported it should be implemented correctly. Some guy sent me mail that tried to run my CPUID program also in DOSBox just for fun and it didn't worked while some other programs show CPUID. So we treace the problem and it is in …

Hi, I was noticed that DOSBox supports CPUID instruction and returns CPUID as 486 processor. But when I try to run my CPUID info program it tells me no CPUID is supported. I use a test if CPUID is supported when checking if bit 21 of eflags is writable (i found this method in various code on …