pmovmskb/vpmovmskb: default operand size is 64 bits.
diff --git a/modules/arch/x86/gen_x86_insn.py b/modules/arch/x86/gen_x86_insn.py
index eacb0e5..ded19ea 100755
--- a/modules/arch/x86/gen_x86_insn.py
+++ b/modules/arch/x86/gen_x86_insn.py
@@ -4995,6 +4995,7 @@
     cpu=["MMX", "P3"],
     notavx=True,
     opersize=64,
+    def_opersize_64=64,
     opcode=[0x0F, 0xD7],
     operands=[Operand(type="Reg", size=64, dest="Spare"),
               Operand(type="SIMDReg", size=64, dest="EA")])
@@ -5003,6 +5004,7 @@
     cpu=["SSE2"],
     modifiers=["SetVEX"],
     opersize=64,
+    def_opersize_64=64,
     prefix=0x66,
     opcode=[0x0F, 0xD7],
     operands=[Operand(type="Reg", size=64, dest="Spare"),
diff --git a/modules/arch/x86/tests/avx.hex b/modules/arch/x86/tests/avx.hex
index 4bc11de..57eb96f 100644
--- a/modules/arch/x86/tests/avx.hex
+++ b/modules/arch/x86/tests/avx.hex
@@ -6876,7 +6876,6 @@
 d7 
 c1 
 66 
-48 
 0f 
 d7 
 c1 
@@ -6884,8 +6883,7 @@
 f9 
 d7 
 c1 
-c4 
-e1 
+c5 
 f9 
 d7 
 c1 
diff --git a/modules/arch/x86/tests/gas64/gas-moreinsn.hex b/modules/arch/x86/tests/gas64/gas-moreinsn.hex
index 2380a1f..fa76e39 100644
--- a/modules/arch/x86/tests/gas64/gas-moreinsn.hex
+++ b/modules/arch/x86/tests/gas64/gas-moreinsn.hex
@@ -225,7 +225,6 @@
 0f 
 d7 
 c0 
-48 
 0f 
 d7 
 c0 
@@ -234,7 +233,6 @@
 d7 
 c0 
 66 
-48 
 0f 
 d7 
 c0 
@@ -285,8 +283,6 @@
 00 
 00 
 00 
-00 
-00 
 2e 
 74 
 65 
@@ -462,6 +458,10 @@
 00 
 00 
 00 
+00 
+00 
+00 
+00 
 17 
 00 
 00 
@@ -486,7 +486,7 @@
 00 
 00 
 00 
-20 
+1c 
 01 
 00 
 00 
@@ -550,7 +550,7 @@
 00 
 00 
 00 
-44 
+40 
 01 
 00 
 00 
@@ -614,7 +614,7 @@
 00 
 00 
 00 
-48 
+44 
 01 
 00 
 00 
@@ -686,7 +686,7 @@
 00 
 00 
 00 
-de 
+dc 
 00 
 00 
 00