From aca96a1510879906237a4b6b2176fe5e342e1386 Mon Sep 17 00:00:00 2001
From: gAlfonso-bit <83477269+gAlfonso-bit@users.noreply.github.com>
Date: Sun, 23 May 2021 19:48:34 -0400
Subject: Mark 0xFFF8 as ~7

Since 7 is used as a mask, I wondered if 0xFFF8 was used to undo the mask and it turns out it was.
---
 gflib/bg.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/gflib/bg.c b/gflib/bg.c
index 3c215c103..b6d1b0b92 100644
--- a/gflib/bg.c
+++ b/gflib/bg.c
@@ -55,7 +55,7 @@ void ResetBgs(void)
 
 static void SetBgModeInternal(u8 bgMode)
 {
-    sGpuBgConfigs.bgVisibilityAndMode &= 0xFFF8;
+    sGpuBgConfigs.bgVisibilityAndMode &= ~0x7;
     sGpuBgConfigs.bgVisibilityAndMode |= bgMode;
 }
 
@@ -66,13 +66,11 @@ u8 GetBgMode(void)
 
 void ResetBgControlStructs(void)
 {
-    struct BgConfig* bgConfigs = &sGpuBgConfigs.configs[0];
-    struct BgConfig zeroedConfig = sZeroedBgControlStruct;
     int i;
 
     for (i = 0; i < NUM_BACKGROUNDS; i++)
     {
-        bgConfigs[i] = zeroedConfig;
+        sGpuBgConfigs.configs[i] = sZeroedBgControlStruct;
     }
 }
 
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