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by lispm
2037 days ago
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> each calling lots of opcodes but just can execute a single opcode and works by hardware beings extremely faster. Typically these language oriented instructions need to be implemented by microcode in the CPU. Often this does not create a fast system, but it helps to keep the compiler simple. Examples are typical Lisp Machines, you've mentioned. With RISC CPUs OTOH the idea is to make the CPU instructions more primitive and put more effort into optimizing compilers instead. There were a few attempts to combine (high) language supporting architecture and the RISC principle, but I personally have never seen such a machine. > in the hundreds of thousands of dollars Usually in the 'tens of thousands of dollars'. |
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