Updated instruction counter to have an enable/disable port

modules/instruction_counter.sv

@@ -2,7 +2,7 @@
 `define INSTRUCTION_COUNTER_H
 
 module instruction_counter #(parameter width=5)(
-    input logic [0:0] clk, input logic [0:0] rst, input logic [0:0] we,
+    input logic [0:0] clk, input logic [0:0] rst, input logic [0:0] en, input logic [0:0] we,
     input logic [2**width-1:0] W,
     output logic [2**width-1:0] addr
 );
@@ -10,7 +10,9 @@ module instruction_counter #(parameter width=5)(
     logic [2**width-1:0] pc;
     
     always_ff @(posedge clk or posedge rst) begin
-        if (rst) begin
+        if (~en) begin
+            // Skip any cycles where we are disabled
+        end else if (rst) begin
             pc <= {(2**width){1'b0}};
         end else if (we) begin
             pc <= W;