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1 | /* |
2 | * ========== Copyright Header Begin ========================================== | |
3 | * | |
4 | * OpenSPARC T2 Processor File: roundup.c | |
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 | #include <sys/types.h> | |
24 | ||
25 | #include "basics.h" | |
26 | ||
27 | uint64_t sim_roundup(uint64_t value, uint64_t round) | |
28 | { | |
29 | if (round==0) return 0; | |
30 | ||
31 | /* if not a power of two rounding use the slow integer math method */ | |
32 | if (round & (round-1)) { | |
33 | uint64_t temp; | |
34 | ||
35 | temp = value + round; | |
36 | temp -= temp % round; | |
37 | value = temp; | |
38 | } else { | |
39 | value = (value + round -1) & ~(round -1); | |
40 | } | |
41 | ||
42 | return value; | |
43 | } |