23 lines
1.0 KiB
Ruby
23 lines
1.0 KiB
Ruby
module Virtual
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# Instruction is an abstract for all the code of the object-machine. Derived classe make up the actual functionality
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# of the machine.
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# All functions on the machine are captured as instances of instructions
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#
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# It is actully the point of the virtual machine layer to express oo functionality in the set of instructions, thus
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# defining a minimal set of instructions needed to implement oo.
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# This is partly because jumping over this layer and doing in straight in assember was too big a step
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class Instruction
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end
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# the first instruction we need is to stop. Off course in a real machine this would be a syscall, but that is just
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# an implementation (in a programm it would be a function). But in a virtual machine, not only do we need this instruction,
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# it is indeed the first instruction as just this instruction is the smallest possible programm for the machine.
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# As such it is the next instruction for any first instruction that we generate.
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class Halt < Instruction
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end
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end
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