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Nitpick: In the general case, a virtual machine doesn't necessarily emulate hardware, it might just be an abstract specification (e.g. the Java JVM)

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The JVM still is an abstract specification of computer hardware (instruction set, register set, memory organization). That it wasn't designed for hardware implementation is a very minor nitpick.

But then someone did do a hardware implementation:

https://www.jopdesign.com/ https://github.com/jop-devel/jop

"Due to the small size of the processor, it can be implemented in a low cost FPGA. ..."

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