From c179473c2b3d9b80f3ea6581a0195b4429735f2e Mon Sep 17 00:00:00 2001
From: Stenzek <stenzek@gmail.com>
Date: Sun, 8 Oct 2023 17:50:44 +1000
Subject: [PATCH] Bus: Allow LUT fastmem on mirrors

---
 src/core/bus.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/core/bus.cpp b/src/core/bus.cpp
index 25d52cb3b..46fa14caf 100644
--- a/src/core/bus.cpp
+++ b/src/core/bus.cpp
@@ -585,12 +585,12 @@ bool Bus::CanUseFastmemForAddress(VirtualMemoryAddress address)
     {
       // Currently since we don't map the mirrors, don't use fastmem for them.
       // This is because the swapping of page code bits for SMC is too expensive.
-      return (paddr < RAM_MIRROR_END);
+      return (paddr < g_ram_size);
     }
 #endif
 
     case CPUFastmemMode::LUT:
-      return (paddr < g_ram_size);
+      return (paddr < RAM_MIRROR_END);
 
     case CPUFastmemMode::Disabled:
     default: