starting to clear up slots

mostly docs

lib/register/instructions/load_constant.rb

@@ -1,7 +1,7 @@
 module Register
   # load a constant into a register
   #
-  # first arguemnt is the register the constant is loaded into
+  # first argument is the register the constant is loaded into
   # second is the actual constant
 
   class LoadConstant < Instruction

lib/register/register_machine.rb

@@ -4,3 +4,7 @@ require_relative "assembler"
 require_relative "passes/set_implementation"
 require_relative "passes/return_implementation"
 require_relative "passes/call_implementation"
+
+# So the memory model of the machine allows for indexed access into an "object" .
+# A fixed number of objects exist (ie garbage collection is reclaming, not destroying and
+#  recreating) although there may be a way to increase that number.