Class: GBRb::InstructionSet::Ldahld

Inherits:

Instruction

• Object
• Instruction
• GBRb::InstructionSet::Ldahld

Defined in:

lib/gbrb/instruction_set/ld.rb

Instance Attribute Summary

Attributes inherited from Instruction

#i, #m, #t

Instance Method Summary

• #call(r, mem) ⇒ Object
• #initialize(m = 2, t = 8) ⇒ Ldahld constructor

  A new instance of Ldahld.

Methods inherited from Instruction

#carry?, #immediate_count

Constructor Details

#initialize(m = 2, t = 8) ⇒ Ldahld

Returns a new instance of Ldahld.

# File 'lib/gbrb/instruction_set/ld.rb', line 96

def initialize m=2, t=8
  super
end

Instance Method Details

#call(r, mem) ⇒ Object

# File 'lib/gbrb/instruction_set/ld.rb', line 100

def call r, mem
  r.a.store mem.read_byte r.hl.read
  r.hl.store r.hl.read - 1
end