diff --git a/Core/MIPS/MIPSInt.cpp b/Core/MIPS/MIPSInt.cpp
index a1273526e6..0c29cccdae 100644
--- a/Core/MIPS/MIPSInt.cpp
+++ b/Core/MIPS/MIPSInt.cpp
@@ -375,19 +375,9 @@ namespace MIPSInt
 		{
 		case 10: if (R(rt) == 0) R(rd) = R(rs); break; //movz
 		case 11: if (R(rt) != 0) R(rd) = R(rs); break; //movn
-		case 32: 
-			if (!has_warned) {
-				ERROR_LOG(CPU,"WARNING : exception-causing add at %08x", PC);
-				has_warned = true;
-			}
-			R(rd) = R(rs) + R(rt);		break; //add
+		case 32: R(rd) = R(rs) + R(rt);		break; //add (exception on overflow)
 		case 33: R(rd) = R(rs) + R(rt);		break; //addu
-		case 34: 
-			if (!has_warned) {
-				ERROR_LOG(CPU,"WARNING : exception-causing sub at %08x", PC);
-				has_warned = true;
-			}
-			R(rd) = R(rs) - R(rt);		break; //sub
+		case 34: R(rd) = R(rs) - R(rt);		break; //sub (exception on overflow)
 		case 35: R(rd) = R(rs) - R(rt);		break; //subu
 		case 36: R(rd) = R(rs) & R(rt);		break; //and
 		case 37: R(rd) = R(rs) | R(rt);		break; //or
@@ -398,7 +388,7 @@ namespace MIPSInt
 		case 44: R(rd) = ((s32)R(rs) > (s32)R(rt)) ? R(rs) : R(rt); break; //max
 		case 45: R(rd) = ((s32)R(rs) < (s32)R(rt)) ? R(rs) : R(rt); break;//min
 		default:
-			_dbg_assert_msg_(CPU,0,"Trying to interpret instruction that can't be interpreted");
+			_dbg_assert_msg_(CPU, 0, "Unknown MIPS instruction %08x", op.encoding);
 			break;
 		}
 		PC += 4;
diff --git a/GPU/Vulkan/DrawEngineVulkan.cpp b/GPU/Vulkan/DrawEngineVulkan.cpp
index 5b5275d77e..e8310abd18 100644
--- a/GPU/Vulkan/DrawEngineVulkan.cpp
+++ b/GPU/Vulkan/DrawEngineVulkan.cpp
@@ -1003,14 +1003,11 @@ DrawEngineVulkan::TessellationDataTransferVulkan::TessellationDataTransferVulkan
 DrawEngineVulkan::TessellationDataTransferVulkan::~TessellationDataTransferVulkan() {
 }
 
-// TODO: Consolidate the three textures into one, with height 3.
-// This can be done for all the backends.
-// TODO: Actually, even better, avoid the usage of textures altogether and just use shader storage buffers from the current pushbuffer.
 void DrawEngineVulkan::TessellationDataTransferVulkan::PrepareBuffers(float *&pos, float *&tex, float *&col, int &posStride, int &texStride, int &colStride, int size, bool hasColor, bool hasTexCoords) {
 	colStride = 4;
 
-	// TODO: This SHOULD work without padding but I can't get it to work on nvidia, so had
-	// to expand to vec4. Driver bug?
+	// SSBOs that are not simply float1 or float2 need to be padded up to a float4 size. vec3 members
+	// also need to be 16-byte aligned, hence the padding.
 	struct TessData {
 		float pos[3]; float pad1;
 		float uv[2]; float pad2[2];
@@ -1030,5 +1027,5 @@ void DrawEngineVulkan::TessellationDataTransferVulkan::PrepareBuffers(float *&po
 }
 
 void DrawEngineVulkan::TessellationDataTransferVulkan::SendDataToShader(const float *pos, const float *tex, const float *col, int size, bool hasColor, bool hasTexCoords) {
-	// Nothing to do here!
+	// Nothing to do here! The caller will write directly to the pushbuffer through the pointers it got through PrepareBuffers.
 }