From 4441f3cbdff2fabd397c2634a03a2d0b0d417931 Mon Sep 17 00:00:00 2001
From: negativeExponent <54053706+negativeExponent@users.noreply.github.com>
Date: Mon, 28 Oct 2024 15:32:24 +0800
Subject: [PATCH] MMC5: Fix initial values for chr banks and nametables

At least 1 game expect chr bank and nametables to be initialized at zero (fix Deathloop 256)
---
 src/boards/mmc5.cpp | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/boards/mmc5.cpp b/src/boards/mmc5.cpp
index 82095f04..33cd84be 100644
--- a/src/boards/mmc5.cpp
+++ b/src/boards/mmc5.cpp
@@ -903,14 +903,14 @@ static void GenMMC5Power(void) {
 
 	PRGBanks.fill(0xFF);
 	WRAMPage = 0;
-	CHRBanksA.fill(0xFF);
-	CHRBanksB.fill(0xFF);
+	CHRBanksA.fill(0);
+	CHRBanksB.fill(0);
 	WRAMMaskEnable.fill(0xFF);
 	mmc5ABMode = 0;
 	IRQScanline = 0;
 	IRQEnable = 0;
 	CHRMode = 0;
-	NTAMirroring = NTFill = ATFill = 0xFF;
+	NTAMirroring = NTFill = ATFill = 0;
 	MMC5IRQR = 0;
 	MMC5LineCounter = 0;
 	mmc5psize = mmc5vsize = 3;