Add arg outputs to Controller

Controller.sv

@@ -6,6 +6,10 @@ module Controller(
   input var logic[7:0] databus,
 
   output var logic[1:0] opcode,
+  output var logic[5:0] arg,
+  output var logic[2:0] arg0,
+  output var logic[2:0] arg1,
+  
   output var logic regs_set,
   output var logic[2:0] regs_savesel,
   output var logic[2:0] regs_loadsel,
@@ -14,9 +18,6 @@ module Controller(
   output var logic pc_set
 );
 
-  var logic[5:0] arg;
-  var logic[2:0] arg0;
-  var logic[2:0] arg1;
   assign opcode = databus[7:6];
   assign arg = databus[5:0];
   assign arg0 = databus[2:0];