x86[_64]cpuid.pl: add function accessing rdrand instruction.

2011-06-04 12:20:45 +00:00
parent 8d515259e2
commit 301799b803
5 changed files with 58 additions and 2 deletions
--- a/crypto/perlasm/x86asm.pl
+++ b/crypto/perlasm/x86asm.pl
@@ -123,6 +123,14 @@ sub ::pclmulqdq
    {	&::generic("pclmulqdq",@_);		}
 }

+sub ::rdrand
+{ my ($dst)=@_;
+    if ($dst =~ /(e[a-dsd][ixp])/)
+    {	&::data_byte(0x0f,0xc7,0xf0|$regrm{$dst});	}
+    else
+    {	&::generic("rdrand",@_);	}
+}
+
 # label management
 $lbdecor="L";		# local label decoration, set by package
 $label="000";