From 3a5569ce9dd4cd6ccb146a7cfbca3c8ba05178a3 Mon Sep 17 00:00:00 2001
From: LegendOfDragoon <the_f1u@yahoo.com>
Date: Thu, 24 Sep 2015 15:13:21 -0700
Subject: [PATCH] Ensure R0 cannot be written to in LB

This happens in Castlevania and OOT, although I'm not sure if the code
ever gets reached.
---
 Source/RSP/Recompiler Ops.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Source/RSP/Recompiler Ops.c b/Source/RSP/Recompiler Ops.c
index 4f7117276..1adbbd29e 100644
--- a/Source/RSP/Recompiler Ops.c	
+++ b/Source/RSP/Recompiler Ops.c	
@@ -619,6 +619,8 @@ void Compile_COP2 (void) {
 void Compile_LB ( void ) {
 	int Offset = (short)RSPOpC.offset;
 
+	if(RSPOpC.rt == 0) return;
+	
 	#ifndef Compile_GPRLoads
 	Cheat_r4300iOpcode(RSP_Opcode_LB,"RSP_Opcode_LB"); return;
 	#endif