diff options
| author | Andy Polyakov <appro@openssl.org> | 2014-02-14 17:24:12 +0100 |
|---|---|---|
| committer | Andy Polyakov <appro@openssl.org> | 2014-02-14 17:24:12 +0100 |
| commit | f4d456408d9d7bca31f34765d1a05fbd9fa55826 (patch) | |
| tree | e52d1370e39be0b3d428d0b34b5a0c281a589e85 /crypto/x86cpuid.pl | |
| parent | 5599c7331b90d9d29c9914c2a95c16d91485415a (diff) | |
x86[_64]cpuid.pl: add low-level RDSEED.
Diffstat (limited to 'crypto/x86cpuid.pl')
| -rw-r--r-- | crypto/x86cpuid.pl | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/crypto/x86cpuid.pl b/crypto/x86cpuid.pl index ef1216a8b2..86772329bc 100644 --- a/crypto/x86cpuid.pl +++ b/crypto/x86cpuid.pl @@ -469,6 +469,18 @@ my $max = "ebp"; &ret (); &function_end_B("OPENSSL_ia32_rdrand"); +&function_begin_B("OPENSSL_ia32_rdseed"); + &mov ("ecx",8); +&set_label("loop"); + &rdseed ("eax"); + &jc (&label("break")); + &loop (&label("loop")); +&set_label("break"); + &cmp ("eax",0); + &cmove ("eax","ecx"); + &ret (); +&function_end_B("OPENSSL_ia32_rdseed"); + &initseg("OPENSSL_cpuid_setup"); &hidden("OPENSSL_cpuid_setup"); |