From 0300f5a80e0e798730899598700884d916d3526d Mon Sep 17 00:00:00 2001
From: cottonvibes <cottonvibes@96395faa-99c1-11dd-bbfe-3dabce05a288>
Date: Wed, 25 Aug 2010 00:57:51 +0000
Subject: [PATCH] microVU: Added some logs to dev builds for checking rare
 cases. (VU programs that wrap around VU memory, and VU0 micro-programs that
 access VU1's registers by its mem-mapping at 0x4xxx)

git-svn-id: http://pcsx2.googlecode.com/svn/trunk@3688 96395faa-99c1-11dd-bbfe-3dabce05a288
---
 pcsx2/x86/microVU_Compile.inl |  2 +-
 pcsx2/x86/microVU_Misc.inl    | 13 +++++++++++++
 2 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/pcsx2/x86/microVU_Compile.inl b/pcsx2/x86/microVU_Compile.inl
index b725023fd1..cf3d0510e4 100644
--- a/pcsx2/x86/microVU_Compile.inl
+++ b/pcsx2/x86/microVU_Compile.inl
@@ -99,7 +99,7 @@ static void mVUsetupRange(microVU* mVU, s32 pc, bool isStartPC) {
 		}
 	}
 	else {
-		//DevCon.WriteLn(Color_Green, "microVU%d: Prog Range Wrap [%04x] [%d]", mVU->index, mVUrange.start, mVUrange.end);
+		DevCon.WriteLn(Color_Green, "microVU%d: Prog Range Wrap [%04x] [%d]", mVU->index, mVUrange.start, mVUrange.end);
 		mVUrange.end = mVU->microMemSize;
 		microRange mRange = {0, pc};
 		ranges->push_front(mRange);
diff --git a/pcsx2/x86/microVU_Misc.inl b/pcsx2/x86/microVU_Misc.inl
index 54c36d3a61..86c7e8490b 100644
--- a/pcsx2/x86/microVU_Misc.inl
+++ b/pcsx2/x86/microVU_Misc.inl
@@ -213,6 +213,9 @@ void mVUmergeRegs(const xmm& dest, const xmm& src, int xyzw, bool modXYZW)
 // Micro VU - Misc Functions
 //------------------------------------------------------------------
 
+// Gets called by mVUaddrFix at execution-time
+static void __fastcall mVUwarningRegAccess(mV) { Console.Error("microVU0 Warning: Accessing VU1 Regs! [%04x] [%x]", xPC, mVU->prog.cur); }
+
 // Transforms the Address in gprReg to valid VU0/VU1 Address
 __fi void mVUaddrFix(mV, const x32& gprReg)
 {
@@ -223,6 +226,16 @@ __fi void mVUaddrFix(mV, const x32& gprReg)
 	else {
 		xCMP(gprReg, 0x400);
 		xForwardJL8 jmpA; // if addr >= 0x4000, reads VU1's VF regs and VI regs
+			if (IsDevBuild && !isCOP2) { // Lets see which games do this!
+				xPUSH(gprT1);			 // Note: Kernel does it via COP2 to initialize VU1!
+				xPUSH(gprT2);			 // So we don't spam console, we'll only check micro-mode...
+				xPUSH(gprT3);
+				xMOV(gprT2, (uptr)mVU);
+				xCALL(mVUwarningRegAccess);
+				xPOP(gprT3);
+				xPOP(gprT2);
+				xPOP(gprT1);
+			}
 			xAND(gprReg, 0x43f); // ToDo: theres a potential problem if VU0 overrides VU1's VF0/VI0 regs!
 			xForwardJump8 jmpB;
 		jmpA.SetTarget();