引用:
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作者hendry2002
R2000有專利問題??
Are you sure?
你可以去查一家公司希圖視鼎
後來賣去大陸
倒掉前據我的了解
沒有遇到CPU專利問題
當初就是拿R2000來改的
他的SOC至少也有賣幾年
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Do you realize that i have worked on MIPS R2000 almost two decades ago.
the patents of MIPS R2000 expired in 2006 or 2008.
that is why loongson spent a lot of money in order to accquire the license from MIPS.
nobody could say that you violate the issues of MIPS' patents if you have modified the core from MIPS. i guess that the loongson accquires all the knowledges from the textbook of MIPS' R2000. of course, it also depends on how you modify the core from MIPS for your own desgin.
i do believe that it is also the indirect reason why RISC-V would have existed.