szczys writes: Higher performance, lower power. One of the challenges with hitting both of those benchmarks is the need to adhere to established instruction sets like x86. One interesting development is the use of Variable Instruction Sets at the silicon level. The basic concept of translating established instructions to something more efficient for the specific architecture isn't new; this is what yielded the first low-power x86 processors at the beginning of the century. But those relied on the translation at the software level. A company called Soft Machine is paving the way for variable instructions in hardware. Think of it as an emulator for ARM, x86, and other architectures that is running on silicon for fast execution while sipping very little power.
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