diff --git a/native_exec/simple_x64.py b/native_exec/simple_x64.py
index b7ca92e..305eca7 100644
--- a/native_exec/simple_x64.py
+++ b/native_exec/simple_x64.py
@@ -616,6 +616,9 @@ class In(Instruction):
                 (RawBits.from_int(16, 0x66ed), FixedRegister('AX'), FixedRegister('DX')), # Fuck-it hardcoded prefix for now
                 (RawBits.from_int(8, 0xed), FixedRegister('EAX'), FixedRegister('DX'))]
 
+class Cpuid(Instruction):
+    encoding = [(RawBits.from_int(16, 0x0fa2),)]
+
 class JmpImm(object):
     accept_as_Ximmediat = (None)
     def __init__(self, sub):
diff --git a/native_exec/simple_x86.py b/native_exec/simple_x86.py
index 3cb9ba6..9321900 100644
--- a/native_exec/simple_x86.py
+++ b/native_exec/simple_x86.py
@@ -511,6 +511,9 @@ class Xchg(Instruction):
 class Call(Instruction):
     encoding = [(RawBits.from_int(8, 0xff), Slash(2))]
 
+class Cpuid(Instruction):
+    encoding = [(RawBits.from_int(16, 0x0fa2),)]
+
 class Ret(Instruction):
     encoding = [(RawBits.from_int(8, 0xc3),)]
 
diff --git a/native_exec/test_simple_x64.py b/native_exec/test_simple_x64.py
index 209b57c..7a5b517 100644
--- a/native_exec/test_simple_x64.py
+++ b/native_exec/test_simple_x64.py
@@ -96,6 +96,8 @@ TestInstr(Push)(0x42)
 TestInstr(Push)(-1)
 TestInstr(Call)('RAX')
 TestInstr(Call)(mem('[RAX + RCX * 8]'))
+TestInstr(Cpuid)()
+
 
 TestInstr(Xchg)('RAX', 'RSP')
 assert Xchg('RAX', 'RCX').get_code() == Xchg('RCX', 'RAX').get_code()
\ No newline at end of file
diff --git a/native_exec/test_simple_x86.py b/native_exec/test_simple_x86.py
index 8d61fa1..829d084 100644
--- a/native_exec/test_simple_x86.py
+++ b/native_exec/test_simple_x86.py
@@ -82,6 +82,7 @@ TestInstr(Lea)('ECX', mem('[EDI + -0xff]'))
 
 TestInstr(Call)('EAX')
 TestInstr(Call)(mem('[EAX + ECX * 8]'))
+TestInstr(Cpuid)()
 
 TestInstr(Xchg)('EAX', 'ESP')
 assert Xchg('EAX', 'ECX').get_code() == Xchg('ECX', 'EAX').get_code()