diff --git a/src/386_ops.h b/src/386_ops.h
index 7132f05..1cf7bbe 100644
--- a/src/386_ops.h
+++ b/src/386_ops.h
@@ -549,7 +549,7 @@ OpFn OP_TABLE(pentiummmx_0f)[1024] =
 /*00*/  op0F00_a16,     op0F01_w_a16,   opLAR_w_a16,    opLSL_w_a16,    ILLEGAL,        opLOADALL,      opCLTS,         ILLEGAL,        opINVD,         opWBINVD,       ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,
 /*10*/  ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,
 /*20*/  opMOV_r_CRx_a16,opMOV_r_DRx_a16,opMOV_CRx_r_a16,opMOV_DRx_r_a16,opMOV_r_TRx_a16,opMOV_TRx_r_a16,ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,
-/*30*/  opWRMSR,        opRDTSC,        opRDMSR,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,
+/*30*/  opWRMSR,        opRDTSC,        opRDMSR,        opRDPMC,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,
 
 /*40*/  ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,
 /*50*/  ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,
@@ -571,7 +571,7 @@ OpFn OP_TABLE(pentiummmx_0f)[1024] =
 /*00*/  op0F00_a16,     op0F01_l_a16,   opLAR_l_a16,    opLSL_l_a16,    ILLEGAL,        opLOADALL,      opCLTS,         ILLEGAL,        opINVD,         opWBINVD,       ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,
 /*10*/  ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,
 /*20*/  opMOV_r_CRx_a16,opMOV_r_DRx_a16,opMOV_CRx_r_a16,opMOV_DRx_r_a16,opMOV_r_TRx_a16,opMOV_TRx_r_a16,ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,
-/*30*/  opWRMSR,        opRDTSC,        opRDMSR,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,
+/*30*/  opWRMSR,        opRDTSC,        opRDMSR,        opRDPMC,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,
 
 /*40*/  ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,
 /*50*/  ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,
@@ -593,7 +593,7 @@ OpFn OP_TABLE(pentiummmx_0f)[1024] =
 /*00*/  op0F00_a32,     op0F01_w_a32,   opLAR_w_a32,    opLSL_w_a32,    ILLEGAL,        opLOADALL,      opCLTS,         ILLEGAL,        opINVD,         opWBINVD,       ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,
 /*10*/  ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,
 /*20*/  opMOV_r_CRx_a32,opMOV_r_DRx_a32,opMOV_CRx_r_a32,opMOV_DRx_r_a32,opMOV_r_TRx_a32,opMOV_TRx_r_a32,ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,
-/*30*/  opWRMSR,        opRDTSC,        opRDMSR,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,
+/*30*/  opWRMSR,        opRDTSC,        opRDMSR,        opRDPMC,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,
 
 /*40*/  ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,
 /*50*/  ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,
@@ -615,7 +615,7 @@ OpFn OP_TABLE(pentiummmx_0f)[1024] =
 /*00*/  op0F00_a32,     op0F01_l_a32,   opLAR_l_a32,    opLSL_l_a32,    ILLEGAL,        opLOADALL,      opCLTS,         ILLEGAL,        opINVD,         opWBINVD,       ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,
 /*10*/  ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,
 /*20*/  opMOV_r_CRx_a32,opMOV_r_DRx_a32,opMOV_CRx_r_a32,opMOV_DRx_r_a32,opMOV_r_TRx_a32,opMOV_TRx_r_a32,ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,
-/*30*/  opWRMSR,        opRDTSC,        opRDMSR,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,
+/*30*/  opWRMSR,        opRDTSC,        opRDMSR,        opRDPMC,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,
 
 /*40*/  ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,
 /*50*/  ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,        ILLEGAL,
diff --git a/src/x86_ops_msr.h b/src/x86_ops_msr.h
index 4c33f0a..10095d2 100644
--- a/src/x86_ops_msr.h
+++ b/src/x86_ops_msr.h
@@ -16,3 +16,15 @@ static int opRDTSC(uint32_t fetchdat)
         CLOCK_CYCLES(1);
         return 0;
 }
+
+static int opRDPMC(uint32_t fetchdat)
+{
+        if (ECX > 1 || (!(cr4 & CR4_PCE) && (cr0 & 1) && CPL))
+        {
+                x86gpf("RDPMC not allowed", 0);
+                return 1;
+        }
+        EAX = EDX = 0;
+        CLOCK_CYCLES(1);
+        return 0;
+}