51 lines
1.2 KiB
Ruby
51 lines
1.2 KiB
Ruby
module Vm
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class Integer < Word
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# needs to be here as Word's constructor is private (to make it abstract)
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def initialize reg
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super
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end
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def less_or_equal block , right
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block.cmp( self , right )
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Virtual::BranchCondition.new :le
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end
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def greater_or_equal block , right
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block.cmp( self , right )
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Virtual::BranchCondition.new :ge
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end
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def greater_than block , right
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block.cmp( self , right )
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Virtual::BranchCondition.new :gt
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end
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def less_than block , right
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block.cmp( self , right )
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Virtual::BranchCondition.new :lt
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end
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def plus block , first , right
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block.add( self , left , right )
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self
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end
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def minus block , left , right
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block.sub( self , left , right )
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self
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end
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def left_shift block , left , right
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block.mov( self , left , shift_lsr: right )
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self
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end
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def equals block , right
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block.cmp( self , right )
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Virtual::BranchCondition.new :eq
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end
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def is_true? function
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function.cmp( self , 0 )
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Virtual::BranchCondition.new :ne
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end
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def move block , right
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block.mov( self , right )
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self
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end
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end
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end |