Added code to display current PC,

Removed Blanking from 7seg 4 digits,
Changed reset to a switch rather than button
Compiled working version for board

modules/seven_seg_4digit.sv

@@ -13,28 +13,28 @@ module seven_seg_4digit (
     // Rightmost digit
     seven_seg digit0 (
         .num(num[3:0]),
-        .rbi_inv(1'b0),
+        .rbi_inv(1'b1),
         .segments(segments0)
     );
 
     // Second digit from right
     seven_seg digit1 (
         .num(num[7:4]),
-        .rbi_inv(1'b0),
+        .rbi_inv(1'b1),
         .segments(segments1)
     );
 
     // Third digit from right
     seven_seg digit2 (
         .num(num[11:8]),
-        .rbi_inv(1'b0),
+        .rbi_inv(1'b1),
         .segments(segments2)
     );
 
     // Leftmost digit
     seven_seg digit3 (
         .num(num[15:12]),
-        .rbi_inv(1'b0),
+        .rbi_inv(1'b1),
         .segments(segments3)
     );