dingusppc/devices/common/mmiodevice.h

43 lines
1.6 KiB
C++

/*
DingusPPC - The Experimental PowerPC Macintosh emulator
Copyright (C) 2018-21 divingkatae and maximum
(theweirdo) spatium
(Contact divingkatae#1017 or powermax#2286 on Discord for more info)
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 3 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, see <https://www.gnu.org/licenses/>.
*/
#ifndef MMIO_DEVICE_H
#define MMIO_DEVICE_H
#include <devices/common/hwcomponent.h>
#include <cinttypes>
#include <string>
/** Abstract class representing a simple, memory-mapped I/O device */
class MMIODevice : public HWComponent {
public:
MMIODevice() = default;
virtual uint32_t read(uint32_t rgn_start, uint32_t offset, int size) = 0;
virtual void write(uint32_t rgn_start, uint32_t offset, uint32_t value, int size) = 0;
virtual ~MMIODevice() = default;
};
#define SIZE_ARG(size) (size == 4 ? 'l' : size == 2 ? 'w' : \
size == 1 ? 'b' : '0' + size)
#endif /* MMIO_DEVICE_H */