diff options
author | Andy Polyakov <appro@openssl.org> | 2014-02-14 17:24:12 +0100 |
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committer | Andy Polyakov <appro@openssl.org> | 2014-02-14 17:25:14 +0100 |
commit | 104c032b7bed893f87d08ef3178848715e7035b3 (patch) | |
tree | d231b0877c1a78f1421666b69df58e46a98b0365 /crypto/perlasm | |
parent | b347341c75656cf8bc039bd0ea5e3571c9299687 (diff) |
x86[_64]cpuid.pl: add low-level RDSEED.
(cherry picked from commit f4d456408d9d7bca31f34765d1a05fbd9fa55826)
Diffstat (limited to 'crypto/perlasm')
-rwxr-xr-x | crypto/perlasm/x86_64-xlate.pl | 13 | ||||
-rw-r--r-- | crypto/perlasm/x86asm.pl | 8 |
2 files changed, 21 insertions, 0 deletions
diff --git a/crypto/perlasm/x86_64-xlate.pl b/crypto/perlasm/x86_64-xlate.pl index ead4a7d3b5..f51184aedd 100755 --- a/crypto/perlasm/x86_64-xlate.pl +++ b/crypto/perlasm/x86_64-xlate.pl @@ -778,6 +778,19 @@ my $rdrand = sub { } }; +my $rdseed = sub { + if (shift =~ /%[er](\w+)/) { + my @opcode=(); + my $dst=$1; + if ($dst !~ /[0-9]+/) { $dst = $regrm{"%e$dst"}; } + rex(\@opcode,0,$1,8); + push @opcode,0x0f,0xc7,0xf8|($dst&7); + @opcode; + } else { + (); + } +}; + sub rxb { local *opcode=shift; my ($dst,$src1,$src2,$rxb)=@_; diff --git a/crypto/perlasm/x86asm.pl b/crypto/perlasm/x86asm.pl index 17abf92297..dcbc738516 100644 --- 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)=@_; |