Human Resource Machine

human_resource_machine.rb

def inbox
  @register = @inbox.shift
end

def outbox
  @outbox.push @register
end

def add(addr)
  @register = @register + @ram[addr]
end

def sub(addr)
  @register = @register - @ram[addr]
end

def copyto(addr)
  @ram[addr] = @register
end

def copyfrom(addr)
  @register = @ram[addr]
end

def neg()
  @register < 0
end

@inbox = Array.new(8) { rand -99...99 }
@outbox = Array.new(0)
@ram = Array.new(6)
@register = nil

printf "Inbox: %s\n", @inbox.join(', ')

while not @inbox.empty?
  inbox
  outbox
end

printf "Outbox: %s\n", @outbox.join(', ')