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author | Ben Cheng <bccheng@google.com> | 2012-10-01 10:30:31 -0700 |
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committer | Ben Cheng <bccheng@google.com> | 2012-10-01 10:30:31 -0700 |
commit | 82bcbebce43f0227f506d75a5b764b6847041bae (patch) | |
tree | fe9f8597b48a430c4daeb5123e3e8eb28e6f9da9 /gcc-4.7/gcc/ada/g-shsh64.adb | |
parent | 3c052de3bb16ac53b6b6ed659ec7557eb84c7590 (diff) | |
download | toolchain_gcc-82bcbebce43f0227f506d75a5b764b6847041bae.tar.gz toolchain_gcc-82bcbebce43f0227f506d75a5b764b6847041bae.tar.bz2 toolchain_gcc-82bcbebce43f0227f506d75a5b764b6847041bae.zip |
Initial check-in of gcc 4.7.2.
Change-Id: I4a2f5a921c21741a0e18bda986d77e5f1bef0365
Diffstat (limited to 'gcc-4.7/gcc/ada/g-shsh64.adb')
-rw-r--r-- | gcc-4.7/gcc/ada/g-shsh64.adb | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/gcc-4.7/gcc/ada/g-shsh64.adb b/gcc-4.7/gcc/ada/g-shsh64.adb new file mode 100644 index 000000000..330337ceb --- /dev/null +++ b/gcc-4.7/gcc/ada/g-shsh64.adb @@ -0,0 +1,80 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT LIBRARY COMPONENTS -- +-- -- +-- G N A T . S E C U R E _ H A S H E S . S H A 2 _ 6 4 -- +-- -- +-- B o d y -- +-- -- +-- Copyright (C) 2009, Free Software Foundation, Inc. -- +-- -- +-- GNAT is free software; you can redistribute it and/or modify it under -- +-- terms of the GNU General Public License as published by the Free Soft- -- +-- ware Foundation; either version 3, or (at your option) any later ver- -- +-- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- +-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- +-- or FITNESS FOR A PARTICULAR PURPOSE. -- +-- -- +-- As a special exception under Section 7 of GPL version 3, you are granted -- +-- additional permissions described in the GCC Runtime Library Exception, -- +-- version 3.1, as published by the Free Software Foundation. -- +-- -- +-- You should have received a copy of the GNU General Public License and -- +-- a copy of the GCC Runtime Library Exception along with this program; -- +-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see -- +-- <http://www.gnu.org/licenses/>. -- +-- -- +-- GNAT was originally developed by the GNAT team at New York University. -- +-- Extensive contributions were provided by Ada Core Technologies Inc. -- +-- -- +------------------------------------------------------------------------------ + +package body GNAT.Secure_Hashes.SHA2_64 is + + use Interfaces; + + ------------ + -- Sigma0 -- + ------------ + + function Sigma0 (X : Word) return Word is + begin + return Rotate_Right (X, 28) + xor Rotate_Right (X, 34) + xor Rotate_Right (X, 39); + end Sigma0; + + ------------ + -- Sigma1 -- + ------------ + + function Sigma1 (X : Word) return Word is + begin + return Rotate_Right (X, 14) + xor Rotate_Right (X, 18) + xor Rotate_Right (X, 41); + end Sigma1; + + -------- + -- S0 -- + -------- + + function S0 (X : Word) return Word is + begin + return Rotate_Right (X, 1) + xor Rotate_Right (X, 8) + xor Shift_Right (X, 7); + end S0; + + -------- + -- S1 -- + -------- + + function S1 (X : Word) return Word is + begin + return Rotate_Right (X, 19) + xor Rotate_Right (X, 61) + xor Shift_Right (X, 6); + end S1; + +end GNAT.Secure_Hashes.SHA2_64; |