| 1 | /* |
| 2 | * ========== Copyright Header Begin ========================================== |
| 3 | * |
| 4 | * OpenSPARC T2 Processor File: BL_Types.h |
| 5 | * Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved. |
| 6 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES. |
| 7 | * |
| 8 | * The above named program is free software; you can redistribute it and/or |
| 9 | * modify it under the terms of the GNU General Public |
| 10 | * License version 2 as published by the Free Software Foundation. |
| 11 | * |
| 12 | * The above named program is distributed in the hope that it will be |
| 13 | * useful, but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 15 | * General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public |
| 18 | * License along with this work; if not, write to the Free Software |
| 19 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. |
| 20 | * |
| 21 | * ========== Copyright Header End ============================================ |
| 22 | */ |
| 23 | #ifndef __BL_Types_h__ |
| 24 | #define __BL_Types_h__ |
| 25 | |
| 26 | #include <stdio.h> |
| 27 | #include <stdlib.h> |
| 28 | |
| 29 | #include <sys/types.h> |
| 30 | #include <assert.h> |
| 31 | |
| 32 | |
| 33 | typedef signed int int_t; |
| 34 | typedef unsigned int uint_t; |
| 35 | |
| 36 | // Unsigned 256_bit type |
| 37 | class BL_Uint256 { |
| 38 | public: |
| 39 | BL_Uint256() |
| 40 | { |
| 41 | array[0] = 0; |
| 42 | array[1] = 0; |
| 43 | array[2] = 0; |
| 44 | array[3] = 0; |
| 45 | } |
| 46 | |
| 47 | // Create a BL_Uint256 from 4 uint64_t. The first argument is the |
| 48 | // least significant uint64_t, the last argument the most |
| 49 | // significant, etc. |
| 50 | BL_Uint256(uint64_t _ls_val, uint64_t _lms_val, |
| 51 | uint64_t _mms_val, uint64_t _ms_val) |
| 52 | { |
| 53 | array[0] = _ls_val; |
| 54 | array[1] = _lms_val; |
| 55 | array[2] = _mms_val; |
| 56 | array[3] = _ms_val; |
| 57 | } |
| 58 | |
| 59 | uint64_t get(uint_t ndx) const { return array[ndx]; } |
| 60 | BL_Uint256& set(uint_t ndx, uint64_t val) |
| 61 | { |
| 62 | array[ndx] = val; |
| 63 | return *this; |
| 64 | } |
| 65 | |
| 66 | BL_Uint256& invert(uint_t bit) |
| 67 | { |
| 68 | const uint_t nr_bits_in_ull = sizeof(uint64_t) * 8; |
| 69 | uint_t array_ndx = bit/nr_bits_in_ull; |
| 70 | if (array_ndx >= 4) |
| 71 | { |
| 72 | fprintf(stderr, "BL_Uint256::invert(): bad bit number: %d\n", bit); |
| 73 | exit(-1); |
| 74 | } |
| 75 | array[array_ndx] ^= (1ULL << (bit%nr_bits_in_ull)); |
| 76 | return *this; |
| 77 | } |
| 78 | |
| 79 | BL_Uint256 operator&(const BL_Uint256& op2) const |
| 80 | { |
| 81 | BL_Uint256 result; |
| 82 | for (uint_t ndx = 0; ndx < 4; ++ndx) |
| 83 | result.array[ndx] = array[ndx] & op2.array[ndx]; |
| 84 | return result; |
| 85 | } |
| 86 | |
| 87 | ~BL_Uint256() {} |
| 88 | |
| 89 | private: |
| 90 | uint64_t array[4]; |
| 91 | }; |
| 92 | |
| 93 | #endif /* __BL_Types_h__ */ |