cpu.x86: Use bit-range, don't call cpuid so many times
cpu.x86: Use bit-range, don't call cpuid so many times

sarvex/factor-lang,sarvex/factor-lang,factor/factor,sarvex/factor-lang,factor/factor,tgunr/factor,factor/factor,slavapestov/factor,mrjbq7/factor,nicolas-p/factor,nicolas-p/factor,bpollack/factor,mrjbq7/factor,dch/factor,nicolas-p/factor,tgunr/factor,sarvex/factor-lang,AlexIljin/factor,bjourne/factor,AlexIljin/factor,sarvex/factor-lang,bjourne/factor,dch/factor,slavapestov/factor,slavapestov/factor,dch/factor,slavapestov/factor,mrjbq7/factor,nicolas-p/factor,slavapestov/factor,dch/factor,AlexIljin/factor,dch/factor,AlexIljin/factor,AlexIljin/factor,sarvex/factor-lang,bpollack/factor,bjourne/factor,bpollack/factor,bpollack/factor,bpollack/factor,bpollack/factor,AlexIljin/factor,sarvex/factor-lang,bjourne/factor,tgunr/factor,mrjbq7/factor,slavapestov/factor,bjourne/factor,bjourne/factor,factor/factor,bpollack/factor,nicolas-p/factor,bjourne/factor,tgunr/factor,mrjbq7/factor,tgunr/factor,AlexIljin/factor,factor/factor,nicolas-p/factor,factor/factor,tgunr/factor,nicolas-p/factor,slavapestov/factor,dch/factor,mrjbq7/factor