From 8d063391a474b6a5bcaf60cf11f2616fc6a6d3fd Mon Sep 17 00:00:00 2001
From: Lior Halphon <LIJI32@gmail.com>
Date: Sat, 13 Jan 2024 18:06:22 +0200
Subject: [PATCH] Support for certain bootlag games with malformed headers,
 fixes #585

---
 Core/mbc.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/Core/mbc.c b/Core/mbc.c
index 5f9373f..03dc8f6 100644
--- a/Core/mbc.c
+++ b/Core/mbc.c
@@ -195,6 +195,14 @@ void GB_configure_cart(GB_gameboy_t *gb)
             GB_log(gb, "Cartridge type %02x is not yet supported.\n", gb->rom[0x147]);
         }
     }
+    
+    if (!gb->cartridge_type->has_ram &&
+        gb->cartridge_type->mbc_type != GB_NO_MBC &&
+        gb->cartridge_type->mbc_type != GB_TPP1 &&
+        gb->rom[0x149]) {
+        GB_log(gb, "ROM header reports no RAM, but also reports a non-zero RAM size. Assuming cartridge has RAM.\n");
+        gb->cartridge_type++;
+    }
         
     size_t old_mbc_ram_size = gb->mbc_ram_size;
     gb->mbc_ram_size = 0;