53 lines
1.4 KiB
Ruby
53 lines
1.4 KiB
Ruby
require_relative "code"
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require_relative "register_reference"
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module Vm
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# Values represent the information as it is processed. Different subclasses for different types,
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# each type with different operations.
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# The oprerations on values is what makes a machine do things. Operations are captured as
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# subclasses of Instruction and saved to Blocks
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# Values are a way to reason about (create/validate) instructions.
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# Word Values are what fits in a register. Derived classes
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# Float, Reference , Integer(s) must fit the same registers
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# just a base class for data. not sure how this will be usefull (may just have read too much llvm)
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class Value
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def class_for clazz
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RegisterMachine.instance.class_for(clazz)
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end
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end
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# Just a nice way to write branches
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# Comparisons produce them, and branches take them as argument.
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class BranchCondition < Value
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def initialize operator
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@operator = operator
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end
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attr_accessor :operator
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#needed to check the opposite, ie not true
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def not_operator
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case @operator
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when :le
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:gt
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when :gt
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:le
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when :lt
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:ge
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when :eq
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:ne
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else
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raise "no implemented #{@operator}"
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end
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end
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end
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end
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require_relative "values/constants"
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require_relative "values/word"
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require_relative "values/integer"
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require_relative "values/reference"
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require_relative "values/mystery"
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