Class: GBRb::InstructionSet::Push

Inherits:
Instruction show all
Defined in:
lib/gbrb/instruction_set/stack.rb

Instance Attribute Summary

Attributes inherited from Instruction

#i, #m, #t

Instance Method Summary collapse

Methods inherited from Instruction

#carry?, #immediate_count

Constructor Details

#initialize(target, m = 4, t = 16) ⇒ Push

Returns a new instance of Push.



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# File 'lib/gbrb/instruction_set/stack.rb', line 22

def initialize target, m=4, t=16
  super m, t
  @targets = target.to_s.chars.map{|a| a.to_sym}
end

Instance Method Details

#call(r, mem) ⇒ Object 



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# File 'lib/gbrb/instruction_set/stack.rb', line 27

def call r, mem
  @targets.each do |target|
    r.sp.store r.sp.read - 1
    mem.write_byte(r.sp.read, r.public_send(target).read)
  end
end