lib/haxor/vm/stack.rb in haxor-0.3.0 vs lib/haxor/vm/stack.rb in haxor-0.4.0

@@ -5,25 +5,25 @@
         value = @vm.subsystem(:mem).read addr
         push_value value
       end
 
       def push_value(value)
-        sp = @vm.subsystem(:registers).read 'sp'
+        sp = @vm.subsystem(:cpu).reg Vm::Cpu::Core::REG_STACK
         sp -= Consts::WORD_SIZE
-        @vm.subsystem(:registers).write 'sp', sp
+        @vm.subsystem(:cpu).reg Vm::Cpu::Core::REG_STACK, sp
         @vm.subsystem(:mem).write sp, value
       end
 
       def pop(addr)
         value = pop_value
         @vm.subsystem(:mem).write addr, value
       end
 
       def pop_value
-        sp = @vm.subsystem(:registers).read 'sp'
+        sp = @vm.subsystem(:cpu).reg Vm::Cpu::Core::REG_STACK
         value = @vm.subsystem(:mem).read sp
         sp += Consts::WORD_SIZE
-        @vm.subsystem(:registers).write 'sp', sp
+        @vm.subsystem(:cpu).reg Vm::Cpu::Core::REG_STACK, sp
 
         value
       end
     end
   end