UNIX-based environments are often 64-bit, and most UNIX vendors don't support the x86 instruction set.

基于UNIX的环境通常是64位的，并且大多数UNIX供应商都不支持x86指令集。

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The other main type of processor architecture, CISC (the x86 processor being a popular CISC instruction set), allows for memory access in nearly every instruction.

另外一种主要的处理器体系结构CISC (x86处理器就是一种流行的CISC指令集)几乎允许在每条指令中进行内存访问。

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It also maintains an instruction cache for improved performance by storing the "micro operations" of the original x86 system (which can be fetched later without the overhead of decoding).

它还通过存储原始x86系统的“微操作”来维护指令缓存(其后可在没有解码开销的情况下提取)，进而改进性能。

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This time, however, Intel wants to crack the graphics market by doing the one thing it does best: cranking out chips able to run the so-called x86 instruction set that powers the overwhelming majority of modern computers.

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