diff --git a/Source/Project64-core/N64System/Interpreter/InterpreterOps.cpp b/Source/Project64-core/N64System/Interpreter/InterpreterOps.cpp
index 7bc7447a5..b3825546f 100644
--- a/Source/Project64-core/N64System/Interpreter/InterpreterOps.cpp
+++ b/Source/Project64-core/N64System/Interpreter/InterpreterOps.cpp
@@ -274,11 +274,11 @@ R4300iOp::Func * R4300iOp::BuildInterpreter()
     Jump_Regimm[31] = UnknownOpcode;
 
     Jump_CoP0[0] = COP0_MF;
-    Jump_CoP0[1] = UnknownOpcode;
+    Jump_CoP0[1] = COP0_MF;
     Jump_CoP0[2] = UnknownOpcode;
     Jump_CoP0[3] = UnknownOpcode;
     Jump_CoP0[4] = COP0_MT;
-    Jump_CoP0[5] = UnknownOpcode;
+    Jump_CoP0[5] = COP0_MT;
     Jump_CoP0[6] = UnknownOpcode;
     Jump_CoP0[7] = UnknownOpcode;
     Jump_CoP0[8] = UnknownOpcode;
@@ -1882,6 +1882,7 @@ void R4300iOp::COP0_MT()
     case 16: // Config
     case 18: // WatchLo
     case 19: // WatchHi
+    case 20: // XContext
     case 28: // Tag lo
     case 29: // Tag Hi
     case 30: // ErrEPC
diff --git a/Source/Project64-core/N64System/Mips/Register.cpp b/Source/Project64-core/N64System/Mips/Register.cpp
index ac1cc4a2d..8b67d3505 100644
--- a/Source/Project64-core/N64System/Mips/Register.cpp
+++ b/Source/Project64-core/N64System/Mips/Register.cpp
@@ -67,6 +67,7 @@ CP0registers::CP0registers(uint32_t * _CP0) :
     STATUS_REGISTER(_CP0[12]),
     CAUSE_REGISTER(_CP0[13]),
     EPC_REGISTER(_CP0[14]),
+    PREVID_REGISTER(_CP0[15]),
     CONFIG_REGISTER(_CP0[16]),
     TAGLO_REGISTER(_CP0[28]),
     TAGHI_REGISTER(_CP0[29]),
diff --git a/Source/Project64-core/N64System/Mips/Register.h b/Source/Project64-core/N64System/Mips/Register.h
index 331f24e7d..23828392f 100644
--- a/Source/Project64-core/N64System/Mips/Register.h
+++ b/Source/Project64-core/N64System/Mips/Register.h
@@ -37,6 +37,7 @@ public:
     uint32_t & STATUS_REGISTER;
     uint32_t & CAUSE_REGISTER;
     uint32_t & EPC_REGISTER;
+    uint32_t & PREVID_REGISTER;
     uint32_t & CONFIG_REGISTER;
     uint32_t & TAGLO_REGISTER;
     uint32_t & TAGHI_REGISTER;
diff --git a/Source/Project64-core/N64System/N64System.cpp b/Source/Project64-core/N64System/N64System.cpp
index bd8125cf1..11471cf5f 100644
--- a/Source/Project64-core/N64System/N64System.cpp
+++ b/Source/Project64-core/N64System/N64System.cpp
@@ -1035,7 +1035,8 @@ void CN64System::InitRegisters(bool bPostPif, CMipsMemoryVM & MMU)
     m_Reg.EPC_REGISTER = 0xFFFFFFFF;
     m_Reg.BAD_VADDR_REGISTER = 0xFFFFFFFF;
     m_Reg.ERROREPC_REGISTER = 0xFFFFFFFF;
-    m_Reg.CONFIG_REGISTER = 0x0006E463;
+    m_Reg.PREVID_REGISTER = 0x00000B22;
+    m_Reg.CONFIG_REGISTER = 0x7006E463;
     m_Reg.STATUS_REGISTER = 0x34000000;
 
     // N64DD registers