diff --git a/Source/Core/DSPCore/Src/DSPCore.h b/Source/Core/DSPCore/Src/DSPCore.h
index 29a0ab44c0..c88b5ebce7 100644
--- a/Source/Core/DSPCore/Src/DSPCore.h
+++ b/Source/Core/DSPCore/Src/DSPCore.h
@@ -150,7 +150,7 @@
 #define SR_ARITH_ZERO   0x0004
 #define SR_SIGN         0x0008
 #define SR_10           0x0010   // seem to be set by tst
-#define SR_TOP2BITS     0x0020   // this is an odd one. (set by tst)
+#define SR_TOP2BITS     0x0020   // if the upper 2 bits are equal
 #define SR_LOGIC_ZERO   0x0040
 #define SR_INT_ENABLE   0x0200   // Not 100% sure but duddie says so. This should replace the hack, if so.
 #define SR_EXT_INT_ENABLE 0x0800   // Appears in zelda - seems to disable external interupts
diff --git a/Source/Core/DSPCore/Src/DSPIntCCUtil.cpp b/Source/Core/DSPCore/Src/DSPIntCCUtil.cpp
index bdbf8c0584..9b78a11ab6 100644
--- a/Source/Core/DSPCore/Src/DSPIntCCUtil.cpp
+++ b/Source/Core/DSPCore/Src/DSPIntCCUtil.cpp
@@ -28,6 +28,7 @@ namespace DSPInterpreter {
 
 void Update_SR_Register64(s64 _Value)
 {
+	// TODO: Should also set 0x10 and 0x01
 	g_dsp.r[DSP_REG_SR] &= ~SR_CMP_MASK;
 
 	if (_Value < 0)
@@ -40,17 +41,20 @@ void Update_SR_Register64(s64 _Value)
 		g_dsp.r[DSP_REG_SR] |= SR_ARITH_ZERO;
 	}
 
-	// weird
-	if ((_Value >> 62) == 0)
+	// Checks if top bits are equal, what is it good for?
+	if ((_Value >> 62) == 0 || _Value >> 62 == 3)
 	{	
-		g_dsp.r[DSP_REG_SR] |= 0x20;
+		g_dsp.r[DSP_REG_SR] |= SR_TOP2BITS;
 	}
 }
 
+
 void Update_SR_Register16(s16 _Value)
 {
 	g_dsp.r[DSP_REG_SR] &= ~SR_CMP_MASK;
 
+	// Only sets those 3 bits
+
 	if (_Value < 0)
 	{
 		g_dsp.r[DSP_REG_SR] |= SR_SIGN;
@@ -61,10 +65,10 @@ void Update_SR_Register16(s16 _Value)
 		g_dsp.r[DSP_REG_SR] |= SR_ARITH_ZERO;
 	}
 
-	// weird
-	if ((_Value >> 14) == 0)
+	// Checks if top bits are equal, what is it good for?
+	if ((_Value >> 14) == 0 || _Value >> 14 == 3)
 	{
-		g_dsp.r[DSP_REG_SR] |= 0x20;
+		g_dsp.r[DSP_REG_SR] |= SR_TOP2BITS;
 	}
 }
 
diff --git a/Source/Core/DSPCore/Src/DspIntArithmetic.cpp b/Source/Core/DSPCore/Src/DspIntArithmetic.cpp
index 00c89bee35..ad517a28e5 100644
--- a/Source/Core/DSPCore/Src/DspIntArithmetic.cpp
+++ b/Source/Core/DSPCore/Src/DspIntArithmetic.cpp
@@ -461,7 +461,7 @@ void addax(const UDSPInstruction& opc)
 
 // ADDR $acD.M, $axS.L
 // 0100 0ssd xxxx xxxx
-// Adds register $axS.L to accumulator $acD register.
+// Adds register $axS.L to accumulator $acD.M register.
 void addr(const UDSPInstruction& opc)
 {
 	u8 areg = (opc.hex >> 8) & 0x1;