diff --git a/crypto/perlasm/x86masm.pl b/crypto/perlasm/x86masm.pl
index 279ab29b8c352277372d0e2850c0f534a20a47e2..6154b079b9bb16b68e358480864173fb0b8a67fc 100644
--- a/crypto/perlasm/x86masm.pl
+++ b/crypto/perlasm/x86masm.pl
@@ -31,6 +31,7 @@ sub ::generic
 sub ::call	{ &::emit("call",(&::islabel($_[0]) or "$nmdecor$_[0]")); }
 sub ::call_ptr	{ &::emit("call",@_);	}
 sub ::jmp_ptr	{ &::emit("jmp",@_);	}
+sub ::lock	{ &::data_byte(0xf0);	}
 
 sub get_mem
 { my($size,$addr,$reg1,$reg2,$idx)=@_;
diff --git a/crypto/perlasm/x86nasm.pl b/crypto/perlasm/x86nasm.pl
index 224feff12e8f33e4b12fb599ebe14df261a33b65..23a84ba56355ce0559f93f288fefabfabe6ca94f 100644
--- a/crypto/perlasm/x86nasm.pl
+++ b/crypto/perlasm/x86nasm.pl
@@ -19,6 +19,8 @@ sub ::generic
 	{   $_[0] = "NEAR $_[0]";   	}
 	elsif ($opcode eq "lea" && $#_==1)  # wipe storage qualifier from lea
 	{   $_[1] =~ s/^[^\[]*\[/\[/o;	}
+	elsif ($opcode eq "clflush" && $#_==0)
+	{   $_[0] =~ s/^[^\[]*\[/\[/o;	}
     }
     &::emit($opcode,@_);
   1;