CPU设计大家谈：限时活动，有书赠送

qiang0204

“我们理解中国拥有自己的ISA的愿望，我们将继续提供合作，并与相关的主要人员讨论，以达成一个出色的解决方案，”Brown表示，“关键问题不是ISA本身，而是ISA周围的生态系统。”他强调了ARM生态系统的规模。http://www.f139.com/metal/detail/463054.html

qiang0204

老外评论汇1：

Like others have said, the Chinese government has done this sort of thing many times before. Including for their own cellular standard and their own DTV standard. Didn't they also develop the CD-V, because it was cheaper than DVD players and DVDs?

I always think about that last example, when I see the (few remaining) DVD players on store shelves going for next to nothing. CD-V is cheaper? I doubt it. May have been for the first couple of years of the DVD, maybe. Was it a smart way to go? I don't know, but I suspect it was rather counterproductive. Did the anyone in the rest of the world adopt their home-grown standards? Not that I know of.

Of course, the population of China is enormous. China and India alone, two countries out of 150+, account for 1 of every 3 people on the planet. So one might expect that they have the talent to pull these things off, no? But it probably depends on how much control the government exerts on the actual design. By which I'm saying, the more government control, the worse off they would end up.

qiang0204

老外评论2：
This is the most efficient government I can say now. A govt planning such a massive endeavor just to keep the country growing? China owns this century because I cannot see any govt that compete with it

qiang0204

老外评论3：
Some important things to remember:
China is a centralized government society.
Given the chance, wouldn't all of us as engineers opt for a shiny new architecture rather than an old x86 or even MIPS RISC, ARM or ARC?
China has vast human resources they can put to designing a new architecture.
China may be looking for a showcase (Don't you remember the Olympics?)
Designing a new architecture would be an extremely difficult project to be successful (and "extremely" isn't a big enough word for it), but did I mention centralized government, control, and massive manpower?

I've got more to say, but apparently the "machine" won't let the comments be longer than the original story so look to http://www.strategysanity.com/o/charch.html for more than 2000 characters worth.

qiang0204

老外评论4：
I do not blame them, just by looking the history ,if some companies are extremely monopolistic and greedy e.g. Microsoft, and now Apple...and asking to much for their goods, services, they direct calling a competitor to destroy their hegemony e.g. AT+T and the ip phones. And to note something to one previous comment:"Remember how successful DoD was in mandating use of ADA? This too will implode. No worries man." The marketplace ultimately rules." 1) China is not the US, 2)China is the largest market with the size of it's middle class which is = the size of the whole US population,3) it is not impossible that they will learn from the mistakes happened elsewhere -e.g.US - and make a better system.

qiang0204

老外评论5：
I would think the available tool chain would be a strong influencing factor. It's hard to make a new hardware architecture. But it's probably harder to make a decent optimizing C compiler (and related tools) for it. An architecture with an existing and mature GCC implementation would make a lot of sense.

qiang0204

老外评论6：
Don't they already have their own CPU architecture - the Longmarch CPUs? This was a copy of the MIPS ISA. This is also apparently what they use in their supercomputers. They will soon realize that defining an ISA is the easy part. Getting folks to design and implement competitive CPUs around that ISA and the ecosystem around it is what makes an ISA succesful.

How about the OpenSparc architecture that was made open source by Sun? Apparently you can download the RTL for free. China likes free.

qiang0204

老外评论7：

Buy MIPS!!

qiang0204

老外评论8：

Architecture is a ocean. In this China will not be able to compete. Any bugs come in and especially whole country and their operations will slow down.

zhule

好~~~~~~~~~~~~