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author | Pavel Pisa <pisa@cmp.felk.cvut.cz> | 2019-02-06 14:42:49 +0100 |
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committer | Pavel Pisa <pisa@cmp.felk.cvut.cz> | 2019-02-06 14:42:49 +0100 |
commit | 608eed5c16366cae251f5d12ad1ed0b988b3ce46 (patch) | |
tree | bc338c8bee507c2a29b215b3c5f172c86f790933 /qtmips_machine/physaddrspace.h | |
parent | c27a1e6354c04904345855e1d28b0e711efa1575 (diff) | |
download | qtmips-608eed5c16366cae251f5d12ad1ed0b988b3ce46.tar.gz qtmips-608eed5c16366cae251f5d12ad1ed0b988b3ce46.tar.bz2 qtmips-608eed5c16366cae251f5d12ad1ed0b988b3ce46.zip |
Implement simple address-space ranges registration and example peripheral.
Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
Diffstat (limited to 'qtmips_machine/physaddrspace.h')
-rw-r--r-- | qtmips_machine/physaddrspace.h | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/qtmips_machine/physaddrspace.h b/qtmips_machine/physaddrspace.h new file mode 100644 index 0000000..b30eb05 --- /dev/null +++ b/qtmips_machine/physaddrspace.h @@ -0,0 +1,76 @@ +// SPDX-License-Identifier: GPL-2.0+ +/******************************************************************************* + * QtMips - MIPS 32-bit Architecture Subset Simulator + * + * Implemented to support following courses: + * + * B35APO - Computer Architectures + * https://cw.fel.cvut.cz/wiki/courses/b35apo + * + * B4M35PAP - Advanced Computer Architectures + * https://cw.fel.cvut.cz/wiki/courses/b4m35pap/start + * + * Copyright (c) 2017-2019 Karel Koci<cynerd@email.cz> + * Copyright (c) 2019 Pavel Pisa <pisa@cmp.felk.cvut.cz> + * + * Faculty of Electrical Engineering (http://www.fel.cvut.cz) + * Czech Technical University (http://www.cvut.cz/) + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, + * Boston, MA 02110-1301, USA. + * + ******************************************************************************/ + +#ifndef PHYSADDRSPACE_H +#define PHYSADDRSPACE_H + +#include <QObject> +#include <QMap> +#include <cstdint> +#include <qtmipsexception.h> +#include "machinedefs.h" +#include "memory.h" + +namespace machine { + +class PhysAddrSpace : public MemoryAccess { + Q_OBJECT +public: + PhysAddrSpace(); + ~PhysAddrSpace(); + + bool wword(std::uint32_t address, std::uint32_t value); + std::uint32_t rword(std::uint32_t address) const; + + bool insert_range(MemoryAccess *mem_acces, std::uint32_t start_addr, std::uint32_t last_addr, bool move_ownership); + bool remove_range(MemoryAccess *mem_acces); + void clean_range(std::uint32_t start_addr, std::uint32_t last_addr); +private: + class RangeDesc { + public: + RangeDesc(MemoryAccess *mem_acces, std::uint32_t start_addr, std::uint32_t last_addr, bool owned); + std::uint32_t start_addr; + std::uint32_t last_addr; + MemoryAccess *mem_acces; + bool owned; + }; + QMap<std::uint32_t, RangeDesc *> ranges_by_addr; + QMap<MemoryAccess *, RangeDesc *> ranges_by_access; + RangeDesc *find_range(std::uint32_t address) const; +}; + +} + +#endif // PHYSADDRSPACE_H |