From d52f0fc9155a982f302c2592431315d4cade8423 Mon Sep 17 00:00:00 2001
From: LinesPrower <LinesPrower@gmail.com>
Date: Sun, 4 Oct 2009 08:19:51 +0000
Subject: [PATCH] ExRAM iCache support in JIT IL

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@4359 8ced0084-cf51-0410-be5f-012b33b47a6e
---
 .../Core/Core/Src/PowerPC/Jit64IL/JitAsm.cpp  | 56 +++++++++++++------
 1 file changed, 39 insertions(+), 17 deletions(-)

diff --git a/Source/Core/Core/Src/PowerPC/Jit64IL/JitAsm.cpp b/Source/Core/Core/Src/PowerPC/Jit64IL/JitAsm.cpp
index cccd2c2707..e070347492 100644
--- a/Source/Core/Core/Src/PowerPC/Jit64IL/JitAsm.cpp
+++ b/Source/Core/Core/Src/PowerPC/Jit64IL/JitAsm.cpp
@@ -89,23 +89,8 @@ void AsmRoutineManager::Generate()
 			MOV(32, R(EAX), M(&PowerPC::ppcState.pc));
 			dispatcherPcInEAX = GetCodePtr();
 
-#ifdef JIT_UNLIMITED_ICACHE
-			AND(32, R(EAX), Imm32(JIT_ICACHE_MASK));
-#ifdef _M_IX86
-			MOV(32, R(EAX), MDisp(EAX, (u32)jit.GetBlockCache()->GetICache()));
-#else
-			MOV(64, R(RSI), Imm64((u64)jit.GetBlockCache()->GetICache()));
-			MOV(32, R(EAX), MComplex(RSI, EAX, SCALE_1, 0));
-#endif
-#else
-#ifdef _M_IX86
-			AND(32, R(EAX), Imm32(Memory::MEMVIEW32_MASK));
-			MOV(32, R(EBX), Imm32((u32)Memory::base));
-			MOV(32, R(EAX), MComplex(EBX, EAX, SCALE_1, 0));
-#else
-			MOV(32, R(EAX), MComplex(RBX, RAX, SCALE_1, 0));
-#endif
-#endif
+			FixupBranch needinst = J(true);
+			const u8* haveinst = GetCodePtr();
 
 			TEST(32, R(EAX), Imm32(0xFC));
 			FixupBranch notfound = J_CC(CC_NZ);
@@ -176,6 +161,43 @@ void AsmRoutineManager::Generate()
 	ABI_PopAllCalleeSavedRegsAndAdjustStack();
 	RET();
 
+			SetJumpTarget(needinst);
+#ifdef JIT_UNLIMITED_ICACHE
+			
+			TEST(32, R(EAX), Imm32(JIT_ICACHE_EXRAM_BIT));
+			FixupBranch exram = J_CC(CC_NZ);
+
+			AND(32, R(EAX), Imm32(JIT_ICACHE_MASK));
+#ifdef _M_IX86
+			MOV(32, R(EAX), MDisp(EAX, (u32)jit.GetBlockCache()->GetICache()));
+#else
+			MOV(64, R(RSI), Imm64((u64)jit.GetBlockCache()->GetICache()));
+			MOV(32, R(EAX), MComplex(RSI, EAX, SCALE_1, 0));
+#endif
+
+			FixupBranch getinst = J();
+			SetJumpTarget(exram);
+						
+			AND(32, R(EAX), Imm32(JIT_ICACHEEX_MASK));
+#ifdef _M_IX86
+			MOV(32, R(EAX), MDisp(EAX, (u32)jit.GetBlockCache()->GetICacheEx()));
+#else
+			MOV(64, R(RSI), Imm64((u64)jit.GetBlockCache()->GetICacheEx()));
+			MOV(32, R(EAX), MComplex(RSI, EAX, SCALE_1, 0));
+#endif			
+
+			SetJumpTarget(getinst);
+#else
+#ifdef _M_IX86
+			AND(32, R(EAX), Imm32(Memory::MEMVIEW32_MASK));
+			MOV(32, R(EBX), Imm32((u32)Memory::base));
+			MOV(32, R(EAX), MComplex(EBX, EAX, SCALE_1, 0));
+#else
+			MOV(32, R(EAX), MComplex(RBX, RAX, SCALE_1, 0));
+#endif
+#endif	
+			JMP(haveinst, true);
+
 	GenerateCommon();
 }