diff --git a/External/FEXCore/Source/Interface/Core/OpcodeDispatcher.cpp b/External/FEXCore/Source/Interface/Core/OpcodeDispatcher.cpp
index 6ce33af6f..981318b71 100644
--- a/External/FEXCore/Source/Interface/Core/OpcodeDispatcher.cpp
+++ b/External/FEXCore/Source/Interface/Core/OpcodeDispatcher.cpp
@@ -5847,8 +5847,8 @@ void OpDispatchBuilder::InstallHostSpecificOpcodeHandlers() {
     {OPD(1, 0b00, 0x2F), 1, &OpDispatchBuilder::UCOMISxOp<4>},
     {OPD(1, 0b01, 0x2F), 1, &OpDispatchBuilder::UCOMISxOp<8>},
 
-    {OPD(1, 0b01, 0xD0), 1, &OpDispatchBuilder::VADDSUBPOp<8>},
-    {OPD(1, 0b11, 0xD0), 1, &OpDispatchBuilder::VADDSUBPOp<4>},
+    {OPD(1, 0b00, 0x50), 1, &OpDispatchBuilder::MOVMSKOp<4>},
+    {OPD(1, 0b01, 0x50), 1, &OpDispatchBuilder::MOVMSKOp<8>},
 
     {OPD(1, 0b00, 0x51), 1, &OpDispatchBuilder::AVXVectorUnaryOp<IR::OP_VFSQRT, 4, false>},
     {OPD(1, 0b01, 0x51), 1, &OpDispatchBuilder::AVXVectorUnaryOp<IR::OP_VFSQRT, 8, false>},
@@ -5948,6 +5948,9 @@ void OpDispatchBuilder::InstallHostSpecificOpcodeHandlers() {
 
     {OPD(1, 0b01, 0xC5), 1, &OpDispatchBuilder::PExtrOp<2>},
 
+    {OPD(1, 0b01, 0xD0), 1, &OpDispatchBuilder::VADDSUBPOp<8>},
+    {OPD(1, 0b11, 0xD0), 1, &OpDispatchBuilder::VADDSUBPOp<4>},
+
     {OPD(1, 0b01, 0xD1), 1, &OpDispatchBuilder::VPSRLDOp<2>},
     {OPD(1, 0b01, 0xD2), 1, &OpDispatchBuilder::VPSRLDOp<4>},
     {OPD(1, 0b01, 0xD3), 1, &OpDispatchBuilder::VPSRLDOp<8>},
diff --git a/External/FEXCore/Source/Interface/Core/X86Tables/VEXTables.cpp b/External/FEXCore/Source/Interface/Core/X86Tables/VEXTables.cpp
index ba3dc88ba..5fbd9ed8f 100644
--- a/External/FEXCore/Source/Interface/Core/X86Tables/VEXTables.cpp
+++ b/External/FEXCore/Source/Interface/Core/X86Tables/VEXTables.cpp
@@ -48,8 +48,8 @@ void InitializeVEXTables() {
     {OPD(1, 0b00, 0x17), 1, X86InstInfo{"VMOVHPS",   TYPE_INST, GenFlagsSizes(SIZE_64BIT, SIZE_128BIT) | FLAGS_MODRM | FLAGS_SF_MOD_MEM_ONLY | FLAGS_SF_MOD_DST | FLAGS_XMM_FLAGS, 0, nullptr}},
     {OPD(1, 0b01, 0x17), 1, X86InstInfo{"VMOVHPD",   TYPE_INST, GenFlagsSizes(SIZE_64BIT, SIZE_128BIT) | FLAGS_MODRM | FLAGS_SF_MOD_MEM_ONLY | FLAGS_SF_MOD_DST | FLAGS_XMM_FLAGS, 0, nullptr}},
 
-    {OPD(1, 0b00, 0x50), 1, X86InstInfo{"VMOVMSKPS", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}},
-    {OPD(1, 0b01, 0x50), 1, X86InstInfo{"VMOVMSKPD", TYPE_UNDEC, FLAGS_NONE, 0, nullptr}},
+    {OPD(1, 0b00, 0x50), 1, X86InstInfo{"VMOVMSKPS", TYPE_INST, GenFlagsSizes(SIZE_32BIT, SIZE_128BIT) | FLAGS_MODRM | FLAGS_SF_MOD_REG_ONLY | FLAGS_XMM_FLAGS | FLAGS_SF_DST_GPR, 0, nullptr}},
+    {OPD(1, 0b01, 0x50), 1, X86InstInfo{"VMOVMSKPD", TYPE_INST, GenFlagsSizes(SIZE_32BIT, SIZE_128BIT) | FLAGS_MODRM | FLAGS_SF_MOD_REG_ONLY | FLAGS_XMM_FLAGS | FLAGS_SF_DST_GPR, 0, nullptr}},
 
     {OPD(1, 0b00, 0x51), 1, X86InstInfo{"VSQRTPS",   TYPE_INST, GenFlagsSameSize(SIZE_128BIT) | FLAGS_MODRM | FLAGS_XMM_FLAGS, 0, nullptr}},
     {OPD(1, 0b01, 0x51), 1, X86InstInfo{"VSQRTPD",   TYPE_INST, GenFlagsSameSize(SIZE_128BIT) | FLAGS_MODRM | FLAGS_XMM_FLAGS, 0, nullptr}},
diff --git a/unittests/ASM/VEX/vmovmskpd.asm b/unittests/ASM/VEX/vmovmskpd.asm
new file mode 100644
index 000000000..af7676588
--- /dev/null
+++ b/unittests/ASM/VEX/vmovmskpd.asm
@@ -0,0 +1,39 @@
+%ifdef CONFIG
+{
+  "HostFeatures": ["AVX"],
+  "RegData": {
+    "RAX": "0x2",
+    "RBX": "0xA",
+    "RDI": "0x0",
+    "RSI": "0x0"
+  },
+  "MemoryRegions": {
+    "0x100000000": "4096"
+  }
+}
+%endif
+
+lea rdx, [rel .data]
+
+vmovapd ymm0, [rdx]
+vmovapd ymm1, [rdx + 32]
+
+vmovmskpd rax, xmm0
+vmovmskpd rbx, ymm0
+
+vmovmskpd rdi, xmm1
+vmovmskpd rsi, ymm1
+
+hlt
+
+align 32
+.data:
+dq 0x0000000000000000
+dq 0x8000000000000000
+dq 0x0000000000000000
+dq 0x8000000000000000
+
+dq 0x4142434445464748
+dq 0x5152535455565758
+dq 0x4142434445464748
+dq 0x5152535455565758
diff --git a/unittests/ASM/VEX/vmovmskps.asm b/unittests/ASM/VEX/vmovmskps.asm
new file mode 100644
index 000000000..46630c037
--- /dev/null
+++ b/unittests/ASM/VEX/vmovmskps.asm
@@ -0,0 +1,39 @@
+%ifdef CONFIG
+{
+  "HostFeatures": ["AVX"],
+  "RegData": {
+    "RAX": "0x00",
+    "RBX": "0x03",
+    "RDI": "0x00",
+    "RSI": "0x33"
+  },
+  "MemoryRegions": {
+    "0x100000000": "4096"
+  }
+}
+%endif
+
+lea rdx, [rel .data]
+
+vmovaps ymm0, [rdx]
+vmovaps ymm1, [rdx + 32]
+
+vmovmskps rax, xmm0
+vmovmskps rbx, xmm1
+
+vmovmskps rdi, ymm0
+vmovmskps rsi, ymm1
+
+hlt
+
+align 32
+.data:
+dq 0x4142434445464748
+dq 0x5152535455565758
+dq 0x4142434445464748
+dq 0x5152535455565758
+
+dq 0x8000000080000000
+dq 0x7000000070000000
+dq 0x8000000080000000
+dq 0x7000000070000000