убрал лишние абстракции

src/vm.cr

@@ -2,7 +2,4 @@
 require "./vm/keyboard.cr"
 require "./vm/stack.cr"
 require "./vm/video.cr"
-require "./vm/registers.cr"
-require "./vm/opcode.cr"
-require "./vm/memory.cr"
 require "./vm/interpreter.cr"

src/vm/interpreter.cr

@@ -29,11 +29,12 @@ class Vm::Interpreter
 
   def initialize(@file : File, @debug : Bool = false)
     @stack = Vm::Stack(UInt16).new
-    @registers = Vm::Registers(UInt8).new
-    @memory = Vm::Memory.new
+    @registers = Array(UInt8).new(16, 0) 
+    @memory = Array(UInt8).new(4096, 0)
+    
     @keyboard = Vm::Keyboard.new
-
     @video = Vm::Video.new
+    
     @audio_timer = 0_u8
     @delay_timer = 0_u8
     @i = 0_u16
@@ -262,7 +263,7 @@ class Vm::Interpreter
   end
 
   def read_opcode
-    Vm::OpCode.new((@memory[@pc].to_u16 << 8) | @memory[@pc + 1])
+    (@memory[@pc].to_u16 << 8) | @memory[@pc + 1]
   end
 
   def next_code!

src/vm/memory.cr

@@ -1,23 +0,0 @@
-class Vm::Memory
-  getter values
-
-  def initialize
-    @values = Array(UInt8).new(4096, 0)
-  end
-
-  def size
-    @values.size
-  end
-
-  def [](i)
-    @values[i]
-  end
-
-  def [](r : Range(UInt16, UInt16))
-    @values[r]
-  end
-
-  def []=(i , v : UInt8)
-    @values[i] = v
-  end
-end

src/vm/opcode.cr

@@ -1,14 +0,0 @@
-struct Vm::OpCode
-  getter bytes
-
-  def initialize(@bytes : UInt16)
-  end
-
-  def to_s
-    bytes.to_s(16)
-  end
-
-  def &(i)
-    bytes & i
-  end
-end

src/vm/registers.cr

@@ -1,23 +0,0 @@
-class Vm::Registers(T)
-  getter values
-
-  def initialize
-    @values = Array(T).new(16, 0)
-  end
-
-  def [](i)
-    @values[i]
-  end
-
-  def []=(i, v : T)
-    @values[i] = v
-  end
-
-  def [](r : Range(UInt8, UInt8))
-    @values[r]
-  end
-
-  def to_s
-    @values.map_with_index { |e, i| "v#{i}[#{e}]" }.join(", ")
-  end
-end