From 2a84d62187e75caba8517c32b76656fc9eb2597e Mon Sep 17 00:00:00 2001
From: Lior Halphon <LIJI32@gmail.com>
Date: Mon, 3 Oct 2016 01:29:54 +0300
Subject: [PATCH] Forbid reading the image while the camera is busy

---
 Core/camera.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Core/camera.c b/Core/camera.c
index db8eb2f..af30bad 100644
--- a/Core/camera.c
+++ b/Core/camera.c
@@ -2,6 +2,10 @@
 
 uint8_t GB_camera_read_image(GB_gameboy_t *gb, uint16_t addr)
 {
+    if (gb->camera_registers[0]) {
+        /* Forbid reading the image while the camera is busy. */
+        return 0xFF;
+    }
     uint8_t tile_x = addr / 0x10 % 0x10;
     uint8_t tile_y = addr / 0x10 / 0x10;