9 files changed, 66 insertions, 13 deletions

diff --git a/src/core/CMakeLists.txt b/src/core/CMakeLists.txt
index 3ba3afa70..314f6e64c 100644
--- a/src/core/CMakeLists.txt
+++ b/src/core/CMakeLists.txt
@@ -18,6 +18,7 @@ set(SRCS    core.cpp
             file_sys/directory_file_system.cpp
             file_sys/meta_file_system.cpp
             hle/hle.cpp
+            hle/mrc.cpp
             hle/syscall.cpp
             hle/service/apt.cpp
             hle/service/gsp.cpp
diff --git a/src/core/arm/interpreter/armemu.cpp b/src/core/arm/interpreter/armemu.cpp
index 6074ff480..c137c61fe 100644
--- a/src/core/arm/interpreter/armemu.cpp
+++ b/src/core/arm/interpreter/armemu.cpp
@@ -4467,7 +4467,7 @@ ARMul_Emulate26 (ARMul_State * state)
                     }
                 /* Drop through.  */
 
-            case 0xe0:
+            //case 0xe0:
             case 0xe4:
             case 0xe6:
             case 0xe8:
@@ -4502,6 +4502,7 @@ ARMul_Emulate26 (ARMul_State * state)
 
 
                 /* Co-Processor Register Transfers (MRC) and Data Ops.  */
+            case 0xe0:
             case 0xe1:
             case 0xe3:
             case 0xe5:
diff --git a/src/core/arm/interpreter/armsupp.cpp b/src/core/arm/interpreter/armsupp.cpp
index 48e55c63a..b2bbedc18 100644
--- a/src/core/arm/interpreter/armsupp.cpp
+++ b/src/core/arm/interpreter/armsupp.cpp
@@ -20,7 +20,7 @@
 
 //#include "ansidecl.h"
 #include "skyeye_defs.h"
-#include "core/hle/hle.h"
+#include "core/hle/mrc.h"
 #include "core/arm/disassembler/arm_disasm.h"
 
 unsigned xscale_cp15_cp_access_allowed (ARMul_State * state, unsigned reg,
@@ -738,7 +738,8 @@ ARMword
 ARMul_MRC (ARMul_State * state, ARMword instr)
 {
 	unsigned cpab;
-	ARMword result = HLE::CallGetThreadCommandBuffer();
+
+	ARMword result = HLE::CallMRC((HLE::ARM11_MRC_OPERATION)BITS(20, 27));
 
 	////printf("SKYEYE ARMul_MRC, CPnum is %x, instr %x\n",CPNum, instr);
 	//if (!CP_ACCESS_ALLOWED (state, CPNum)) {
diff --git a/src/core/core.vcxproj b/src/core/core.vcxproj
index b6fc604c6..be8448969 100644
--- a/src/core/core.vcxproj
+++ b/src/core/core.vcxproj
@@ -153,6 +153,7 @@
     <ClCompile Include="file_sys\directory_file_system.cpp" />
     <ClCompile Include="file_sys\meta_file_system.cpp" />
     <ClCompile Include="hle\hle.cpp" />
+    <ClCompile Include="hle\mrc.cpp" />
     <ClCompile Include="hle\service\apt.cpp" />
     <ClCompile Include="hle\service\gsp.cpp" />
     <ClCompile Include="hle\service\hid.cpp" />
@@ -192,6 +193,7 @@
     <ClInclude Include="file_sys\meta_file_system.h" />
     <ClInclude Include="hle\function_wrappers.h" />
     <ClInclude Include="hle\hle.h" />
+    <ClInclude Include="hle\mrc.h" />
     <ClInclude Include="hle\service\apt.h" />
     <ClInclude Include="hle\service\gsp.h" />
     <ClInclude Include="hle\service\hid.h" />
diff --git a/src/core/core.vcxproj.filters b/src/core/core.vcxproj.filters
index ff7877feb..b5473bc41 100644
--- a/src/core/core.vcxproj.filters
+++ b/src/core/core.vcxproj.filters
@@ -105,6 +105,9 @@
     <ClCompile Include="hw\lcd.cpp">
       <Filter>hw</Filter>
     </ClCompile>
+    <ClCompile Include="hle\mrc.cpp">
+      <Filter>hle</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="arm\disassembler\arm_disasm.h">
@@ -205,6 +208,9 @@
     <ClInclude Include="hw\lcd.h">
       <Filter>hw</Filter>
     </ClInclude>
+    <ClInclude Include="hle\mrc.h">
+      <Filter>hle</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <Text Include="CMakeLists.txt" />
diff --git a/src/core/hle/hle.cpp b/src/core/hle/hle.cpp
index 5672a659f..aae9a3943 100644
--- a/src/core/hle/hle.cpp
+++ b/src/core/hle/hle.cpp
@@ -80,14 +80,6 @@ void CallSyscall(u32 opcode) {
     }
 }
 
-/// Returns the coprocessor (in this case, syscore) command buffer pointer
-Addr CallGetThreadCommandBuffer() {
-    // Called on insruction: mrc p15, 0, r0, c13, c0, 3
-    // Returns an address in OSHLE memory for the CPU to read/write to
-    RETURN(CMD_BUFFER_ADDR);
-    return CMD_BUFFER_ADDR;
-}
-
 void RegisterModule(std::string name, int num_functions, const FunctionDef* func_table) {
     ModuleDef module = {name, num_functions, func_table};
     g_module_db.push_back(module);
diff --git a/src/core/hle/hle.h b/src/core/hle/hle.h
index 628a1da89..907e2d741 100644
--- a/src/core/hle/hle.h
+++ b/src/core/hle/hle.h
@@ -57,8 +57,6 @@ void RegisterModule(std::string name, int num_functions, const FunctionDef *func
 
 void CallSyscall(u32 opcode);
 
-Addr CallGetThreadCommandBuffer();
-
 void Init();
 
 void Shutdown();
diff --git a/src/core/hle/mrc.cpp b/src/core/hle/mrc.cpp
new file mode 100644
index 000000000..04d6cb5a5
--- /dev/null
+++ b/src/core/hle/mrc.cpp
@@ -0,0 +1,32 @@
+#include "mrc.h"
+#include "hle.h"
+
+namespace HLE {
+
+/// Returns the coprocessor (in this case, syscore) command buffer pointer
+Addr CallGetThreadCommandBuffer() {
+    // Called on insruction: mrc p15, 0, r0, c13, c0, 3
+    // Returns an address in OSHLE memory for the CPU to read/write to
+    RETURN(CMD_BUFFER_ADDR);
+    return CMD_BUFFER_ADDR;
+}
+
+/// Call an MRC operation in HLE
+u32 CallMRC(ARM11_MRC_OPERATION operation) {
+    switch (operation) {
+
+    case DATA_SYNCHRONIZATION_BARRIER:
+        ERROR_LOG(OSHLE, "Unimplemented MRC operation DATA_SYNCHRONIZATION_BARRIER");
+        break;
+
+    case CALL_GET_THREAD_COMMAND_BUFFER:
+        return CallGetThreadCommandBuffer();
+
+    default:
+        ERROR_LOG(OSHLE, "Unimplemented MRC operation 0x%02X", operation);
+        break;
+    }
+    return -1;
+}
+
+} // namespace
diff --git a/src/core/hle/mrc.h b/src/core/hle/mrc.h
new file mode 100644
index 000000000..d6b9f162f
--- /dev/null
+++ b/src/core/hle/mrc.h
@@ -0,0 +1,20 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2
+// Refer to the license.txt file included.  
+
+#pragma once
+
+#include "common/common_types.h"
+
+namespace HLE {
+
+/// MRC operations (ARM register from coprocessor), decoded as instr[20:27]
+enum ARM11_MRC_OPERATION {
+    DATA_SYNCHRONIZATION_BARRIER    = 0xE0,
+    CALL_GET_THREAD_COMMAND_BUFFER  = 0xE1,
+};
+
+/// Call an MRC operation in HLE
+u32 CallMRC(ARM11_MRC_OPERATION operation);
+
+} // namespace