Class: Whitespace::ISA::Readn

Inherits:
Instruction show all
Defined in:
lib/whitespace/instructions/io/readn.rb

Instance Attribute Summary collapse

Attributes inherited from Instruction

#vm

Instance Method Summary collapse

Constructor Details

#initialize(vm, console) ⇒ Readn

Returns a new instance of Readn.



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# File 'lib/whitespace/instructions/io/readn.rb', line 5

def initialize(vm, console)
  super(vm)
  @console = console
end

Instance Attribute Details

#console ⇒ Object (readonly)

Returns the value of attribute console.



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# File 'lib/whitespace/instructions/io/readn.rb', line 3

def console
  @console
end

Instance Method Details

#execute ⇒ Object 



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# File 'lib/whitespace/instructions/io/readn.rb', line 10

def execute
  n = console.getn
  address = vm.vstack.pop
  vm.memory[address] = n
end