added LCDC enable bit for DMG PPU

429ers · May 20, 2019 · 8a4bf77 · 8a4bf77
1 parent a3471a1
commit 8a4bf77
Show file tree

Hide file tree

Showing 2 changed files with 5 additions and 2 deletions.
diff --git a/README.md b/README.md
@@ -20,6 +20,7 @@ OOPBoy is a working, fast, and cross-platform Nintendo Game Boy emulator written
 The following games are perfectly playable as far as we can tell:
 - The Legend of Zelda: Link's Awakening
 - Super Mario Land
+- Super Mario Land 2
 - Tetris
 - Tetris DX
 - Pokemon - Red Version
@@ -30,10 +31,9 @@ The following games are perfectly playable as far as we can tell:
 
 The following games play with major graphical glitches:
 - Kirby's Dream Land
+- Donkey Kong
 
 The following games do not play at all:
-- Donkey Kong
-- Super Mario Land 2
 - Super Mario Land 3: Wario Land
 - Tennis
 

diff --git a/src/org/the429ers/gameboy/PPU.java b/src/org/the429ers/gameboy/PPU.java
@@ -11,6 +11,7 @@ public class PPU implements Serializable, IPPU {
 	 * 
 	 */
 	private static final long serialVersionUID = 2887802651514454071L;
+	private boolean enabled = true;
 	private TileSet tileset1;
 	private TileSet tileset2;
 	private TileMap map;
@@ -152,6 +153,8 @@ else if (cycleCount == 0) {
 		scrollX = mem.readByte(0xFF43);
 		int lcdc = mem.readByte(0xff40);
 		spritesEnabled = BitOps.extract(lcdc, 1, 1) == 1;
+		enabled = BitOps.extract(lcdc, 7, 7) == 1;
+		if(!enabled) return;
 
 		//spritesEnabled = true;
 		if (cycleCount == OAM_SEARCH_START) {