rubyx-debugger/lib/interpreter.rb
2015-07-24 10:15:58 +03:00

44 lines
851 B
Ruby

require "eventable"
class Interpreter
include Eventable
attr_accessor :instruction
attr_accessor :block
attr_accessor :registers
def initialize
@registers = Hash[(0...12).collect{|i| ["r#{i}" , "undefined"]}]
end
def start block
set_block block
end
def set_block block
return if @block == block
old = @block
@block = block
trigger(:block_changed , old , block)
set_instruction block.codes.first
end
def set_instruction i
return if @instruction == i
old = @instruction
@instruction = i
trigger(:instruction_changed, old , i)
end
def tick
name = @instruction.class.name.split("::").last
fetch = send "execute_#{name}"
return unless fetch
get_next_intruction
end
def execute_Branch
target = @instruction.block
set_block target
false
end
end