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

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