From 921b75a9095a20bbc44d97b251e659c3334df18b Mon Sep 17 00:00:00 2001
From: aiju <devnull@localhost>
Date: Thu, 11 Oct 2018 16:25:11 +0000
Subject: games/gb: when the LCD is turned off, reset ppuy and ppustate to 0,
 fixes bug in dragon warriors iii reported by mischief

---
 sys/src/games/gb/mem.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/sys/src/games/gb/mem.c b/sys/src/games/gb/mem.c
index ff8fd7950..9098dbe18 100644
--- a/sys/src/games/gb/mem.c
+++ b/sys/src/games/gb/mem.c
@@ -107,8 +107,11 @@ regwrite(u8int a, u8int v)
 		break;
 	case LCDC:
 		ppusync();
-		if((~v & reg[a] & LCDEN) != 0)
+		if((~v & reg[a] & LCDEN) != 0){
+			ppuy = 0;
+			ppustate = 0;
 			delevent(&evhblank);
+		}
 		if((v & ~reg[a] & LCDEN) != 0)
 			addevent(&evhblank, 456*2);
 		break;
-- 
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