immediate generator refinement+tb

Author: Vladislav Rykov

immediate_generator.v

@@ -2,7 +2,6 @@ module immediate_generator #(
   parameter INSTRSIZE = 32,
   IMMSIZE = 64
 ) (
-  input rst,
   input [INSTRSIZE-1:0] instruction,
   output reg signed [IMMSIZE-1:0] immediate
 );
@@ -27,9 +26,4 @@ module immediate_generator #(
     endcase
   end
 
-  always @(negedge rst)
-  begin
-    immediate <= 0;
-  end
-
 endmodule

immediate_generator_tb.v

@@ -41,6 +41,7 @@ module immediate_generator_tb();
   begin : monitoring
     $display("INSTRUCTION						IMMEDIATE");
     $monitor("%b	%d", instruction, immediate);
+    $vcdpluson;
   end
 
   initial #20 $finish;