feat: update project tt_um_2048_vga_game from urish/tt08-2048-game

Commit: dc44f905c2a5e514a65eb4a88548ac17f5ef821e
Workflow: https://github.com/urish/tt08-2048-game/actions/runs/10720211073

projects/tt_um_2048_vga_game/commit_id.json

@@ -1,8 +1,8 @@
 {
   "app": "Tiny Tapeout tt08 587b6cb0",
   "repo": "https://github.com/urish/tt08-2048-game",
-  "commit": "237712f53a5e14e80623320a101ec2b721bb3a47",
-  "workflow_url": "https://github.com/urish/tt08-2048-game/actions/runs/10683573756",
+  "commit": "dc44f905c2a5e514a65eb4a88548ac17f5ef821e",
+  "workflow_url": "https://github.com/urish/tt08-2048-game/actions/runs/10720211073",
   "sort_id": 1725394945324,
   "openlane_version": "OpenLane2 2.0.8",
   "pdk_version": "open_pdks bdc9412b3e468c102d01b7cf6337be06ec6e9c9a"

projects/tt_um_2048_vga_game/docs/info.md

@@ -26,6 +26,8 @@ Use the `ui_in` pins to move the tiles on the board:
 
 After resetting the game, you will see a jumping "2048" animation on the screen. Press any of the `ui_in[3:0]` pins to start the game. The game will start with two tiles with the number 2 on the board. Use the `ui_in` pins to move the tiles in the desired direction. The game will end when the board is full and no more moves can be made.
 
+Setting `ui_in[7]` to 1 will enter unit test mode. In this mode, the game displays a colorful rectangle on the top of the screen, and accepts debug commands on the `uio` pins. Check out the test bench for more information.
+
 ## External hardware
 
 [TinyVGA PMOD](https://github.com/mole99/tiny-vga)

projects/tt_um_2048_vga_game/info.yaml

@@ -17,6 +17,8 @@ project:
   # Source files must be in ./src and you must list each source file separately, one per line.
   # Don't forget to also update `PROJECT_SOURCES` in test/Makefile.
   source_files:
+    - "button_debounce.v"
+    - "debug_controller.v"
     - "draw_game.v"
     - "draw_numbers.v"
     - "galois_lfsr.v"
@@ -37,7 +39,7 @@ pinout:
   ui[4]: ""
   ui[5]: ""
   ui[6]: ""
-  ui[7]: ""
+  ui[7]: "debug_mode"
 
   # Outputs
   uo[0]: "R1"
@@ -50,14 +52,14 @@ pinout:
   uo[7]: "HSync"
 
   # Bidirectional pins
-  uio[0]: ""
-  uio[1]: ""
-  uio[2]: ""
-  uio[3]: ""
-  uio[4]: ""
-  uio[5]: ""
-  uio[6]: ""
-  uio[7]: ""
+  uio[0]: "debug_cmd"
+  uio[1]: "debug_cmd"
+  uio[2]: "debug_cmd"
+  uio[3]: "debug_cmd"
+  uio[4]: "debug_data"
+  uio[5]: "debug_data"
+  uio[6]: "debug_data"
+  uio[7]: "debug_data"
 
 # Do not change!
 yaml_version: 6