same renames for bytes (set/get_byte)

lib/register/instructions/byte_to_reg.rb

@@ -0,0 +1,29 @@
+module Register
+
+  # ByteToReg moves a single byte into a register from memory.
+
+  # indexes are 1 based (as for slots) , which means we sacrifice a byte of every word
+  #        for our sanity
+
+  class ByteToReg < Getter
+
+    # If you had a c array (of int8) and index offset
+    # the instruction would do register = array[index]
+    # The arguments are in the order that makes sense for the Instruction name
+    # So SlotToReg means the slot (array and index) moves to the register (last argument)
+    # def initialize source , array , index , register
+    #   super
+    # end
+    # attr_accessor :array , :index , :register
+
+  end
+
+  # Produce a ByteToReg instruction.
+  # from and to are translated (from symbol to register if neccessary)
+  # but index is left as is.
+  # def self.byte_to_reg source , array , index , to
+  #   from = resolve_to_register from
+  #   to = resolve_to_register to
+  #   ByteToReg.new( source , array , index , to)
+  # end
+end