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by stevekemp
2138 days ago
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Virtual machines are definitely fun, and can be useful things to know about if you ever design/implement a scripting language or an emulator. I wrote a toy system a few years ago, a simple interpreter (C) along with a compiler/decompiler (Perl) to match it. Unfortunately my system didn't have a terribly well-designed instruction set. If I were to start over I'd probably implement 8086 instruction-set, or similar. That said even a toy system is fun, the biggest issue with writing your own instruction-set is that you have to write the actual programs too. Which is often less fun! I rewrote my interpreter in golang recently, keeping the same instruction-set but adding a better trap-system. Of course re-implementing it meant that I still have the problem of no real programs being written for the machine! https://github.com/skx/go.vm/ |
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