1 files changed, 1 insertions, 7 deletions
diff --git a/video.c b/video.c
index d98e6f0..a3e0e0f 100644
--- a/video.c
+++ b/video.c
@@ -23,8 +23,6 @@ int hide_page_2;
 int hide_sprites;
 int trace_unknown_video = 1;
 
-int screen_needs_update;
-
 
 static const u8 sizes[] = { 8, 16, 32, 64 };
 static const u8 colour_sizes[] = { 2, 4, 6, 8 };
@@ -100,7 +98,7 @@ static void do_dma(u32 len)
 		mem[dst+j] = mem[src+j];
 
 	mem[0x2872] = 0;
-	mem[0x2863] |= 0x0004;
+	mem[0x2863] |= 4;	// trigger video DMA IRQ
 }
 
 void video_store(u16 val, u32 addr)
@@ -176,10 +174,6 @@ void video_store(u16 val, u32 addr)
 
 		case 0x2863:		// video IRQ status
 			mem[addr] &= ~val;
-			if (val & 1 && screen_needs_update) {
-				update_screen();
-				screen_needs_update = 0;
-			}
 			return;
 
 		case 0x2870:		// video DMA src