moved HLE::MRC to its own module, added support for catching data synchronization barrier command

4 files changed, 52 insertions, 10 deletions

diff --git a/src/core/hle/hle.cpp b/src/core/hle/hle.cpp
index 5672a659..aae9a394 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 628a1da8..907e2d74 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 00000000..04d6cb5a
--- /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 00000000..d6b9f162
--- /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