flags.hh revision 11320
12SN/A/* 21762SN/A * Copyright (c) 2008 The Hewlett-Packard Development Company 39983Sstever@gmail.com * All rights reserved. 49983Sstever@gmail.com * 52SN/A * Redistribution and use in source and binary forms, with or without 62SN/A * modification, are permitted provided that the following conditions are 72SN/A * met: redistributions of source code must retain the above copyright 82SN/A * notice, this list of conditions and the following disclaimer; 92SN/A * redistributions in binary form must reproduce the above copyright 102SN/A * notice, this list of conditions and the following disclaimer in the 112SN/A * documentation and/or other materials provided with the distribution; 122SN/A * neither the name of the copyright holders nor the names of its 132SN/A * contributors may be used to endorse or promote products derived from 142SN/A * this software without specific prior written permission. 152SN/A * 162SN/A * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 172SN/A * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 182SN/A * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 192SN/A * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 202SN/A * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 212SN/A * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 222SN/A * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 232SN/A * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 242SN/A * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 252SN/A * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 262SN/A * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 272SN/A * 282SN/A * Authors: Nathan Binkert 292665Ssaidi@eecs.umich.edu */ 302760Sbinkertn@umich.edu 312760Sbinkertn@umich.edu#ifndef __BASE_FLAGS_HH__ 322665Ssaidi@eecs.umich.edu#define __BASE_FLAGS_HH__ 332SN/A 342SN/Atemplate <typename T> 358229Snate@binkert.orgclass Flags 362SN/A{ 37363SN/A private: 382SN/A T _flags; 398229Snate@binkert.org 402SN/A public: 412SN/A typedef T Type; 422SN/A Flags() : _flags(0) {} 432SN/A Flags(Type flags) : _flags(flags) {} 442SN/A 45363SN/A operator const Type() const { return _flags; } 4656SN/A 471388SN/A template <typename U> 48217SN/A const Flags<T> & 49363SN/A operator=(const Flags<U> &flags) 5056SN/A { 5156SN/A _flags = flags._flags; 5256SN/A return *this; 531638SN/A } 5456SN/A 552SN/A const Flags<T> & 562356SN/A operator=(T flags) 572356SN/A { 582356SN/A _flags = flags; 592SN/A return *this; 602SN/A } 614762Snate@binkert.org 624762Snate@binkert.org bool isSet() const { return _flags; } 634762Snate@binkert.org bool isSet(Type flags) const { return (_flags & flags); } 644762Snate@binkert.org bool allSet() const { return !(~_flags); } 654762Snate@binkert.org bool allSet(Type flags) const { return (_flags & flags) == flags; } 664762Snate@binkert.org bool noneSet() const { return _flags == 0; } 674762Snate@binkert.org bool noneSet(Type flags) const { return (_flags & flags) == 0; } 684762Snate@binkert.org void clear() { _flags = 0; } 694762Snate@binkert.org void clear(Type flags) { _flags &= ~flags; } 704762Snate@binkert.org void set(Type flags) { _flags |= flags; } 714762Snate@binkert.org void set(Type f, bool val) { _flags = (_flags & ~f) | (val ? f : 0); } 724762Snate@binkert.org void 734762Snate@binkert.org update(Type flags, Type mask) 744762Snate@binkert.org { 754762Snate@binkert.org _flags = (_flags & ~mask) | (flags & mask); 764762Snate@binkert.org } 774762Snate@binkert.org}; 784762Snate@binkert.org 794762Snate@binkert.org#endif // __BASE_FLAGS_HH__ 804762Snate@binkert.org