Class: DCPU16::Debugger

Inherits:
Object
  • Object
show all
Defined in:
lib/dcpu16/debugger.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(dump = [], options = {}) ⇒ Debugger

Returns a new instance of Debugger.



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# File 'lib/dcpu16/debugger.rb', line 4

def initialize(dump = [], options = {})
  @cpu    = DCPU16::CPU.new(dump)
  @screen = DCPU16::Screen.new(@cpu.memory)
  @update_every = options[:update_every] || 100000
  @step_mode    = false || options[:step_mode]

  @cpu.add_observer(self)
end

Instance Attribute Details

#cpu ⇒ Object (readonly)

Returns the value of attribute cpu.



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# File 'lib/dcpu16/debugger.rb', line 3

def cpu
  @cpu
end

#screen ⇒ Object (readonly)

Returns the value of attribute screen.



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# File 'lib/dcpu16/debugger.rb', line 3

def screen
  @screen
end

Instance Method Details

#clear_screen ⇒ Object

Clears screen for output



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# File 'lib/dcpu16/debugger.rb', line 52

def clear_screen
  print @screen.to_s
end

#run ⇒ Object 



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# File 'lib/dcpu16/debugger.rb', line 13

def run
  at_exit do
    print @screen
    puts @cpu.to_s
  end

  begin
    if @step_mode
      @update_every = nil
      while a = $stdin.gets
        a = a.to_i
        a = (@last_step_count || 1) if a < 1
        @last_step_count = a

        @cpu.step(a)
        print @screen
        print @cpu.to_s
      end
    else
      clear_screen
      @cpu.run
    end
  rescue DCPU16::Instructions::Reserved => e
    print @cpu.to_s
  end
end

#update(cpu) ⇒ Object

Observer



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# File 'lib/dcpu16/debugger.rb', line 41

def update(cpu)
  @counter ||= 0
  if @update_every && @counter > @update_every
    @counter = 0
    clear_screen
    print @cpu.to_s
  end
  @counter += 1
end