x86[_64]cpuid.pl: add low-level RDSEED.

2014-02-14 17:24:12 +01:00
parent 5599c7331b
commit f4d456408d
4 changed files with 48 additions and 0 deletions
--- a/crypto/perlasm/x86asm.pl
+++ b/crypto/perlasm/x86asm.pl
@@ -131,6 +131,14 @@ sub ::rdrand
    {	&::generic("rdrand",@_);	}
 }

+sub ::rdseed
+{ my ($dst)=@_;
+    if ($dst =~ /(e[a-dsd][ixp])/)
+    {	&::data_byte(0x0f,0xc7,0xf8|$regrm{$dst});	}
+    else
+    {	&::generic("rdrand",@_);	}
+}
+
 sub rxb {
 local *opcode=shift;
 my ($dst,$src1,$src2,$rxb)=@_;