63 lines
1.3 KiB
Ruby
63 lines
1.3 KiB
Ruby
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module Asm
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ERRSTR_NUMERIC_TOO_LARGE = 'cannot fit numeric literal argument in operand'
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ERRSTR_INVALID_ARG = 'invalid operand argument'
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class Assembler
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def initialize
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@objects = []
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@position = -1 # marks not set
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@label_objects = []
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#@relocations = []
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end
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attr_reader :relocations, :objects , :position
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def add_object(obj)
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obj.at(@position)
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@position += obj.length
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@objects << obj
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end
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def assemble(io)
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@objects.each do |obj|
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obj.assemble io, self
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end
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end
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end
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# class Relocation
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# def initialize(pos, label, type, handler)
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# @position = pos
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# @label = label
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# @type = type
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# @handler = handler
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# end
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# attr_reader :position, :label, :type, :handler
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# end
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#old assemble function
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#def assemble(io)
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# @objects.each do |obj|
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# obj.assemble io, self
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# end
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# @relocations.delete_if do |reloc|
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# io.seek reloc.position
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# #puts "reloc #{reloc.inspect}"
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# if (reloc.label.extern?)
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# reloc.handler.call(io, io.tell, reloc.type)
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# else
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# reloc.handler.call(io, reloc.label.address, reloc.type)
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# end
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# not reloc.label.extern?
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#end
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#end
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#def add_relocation(*args)
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# reloc = Asm::Relocation.new(*args)
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# #raise "reloc #{reloc.inspect}"
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# @relocations << reloc
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#end
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end
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