dingusppc/devices/z85c30.h
2020-08-09 19:21:24 -07:00

49 lines
1.4 KiB
C++

/*
DingusPPC - The Experimental PowerPC Macintosh emulator
Copyright (C) 2018-20 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/>.
*/
/** @file Descriptor-based direct memory access emulation.
Official documentation can be found in the fifth chapter of the book
"Macintosh Technology in the Common Hardware Reference Platform"
by Apple Computer, Inc.
*/
#ifndef Z85C30_H
#define Z85C30_H
#include <cinttypes>
class Z85C30 {
public:
Z85C30();
~Z85C30();
uint8_t read(uint8_t reg);
void write(uint8_t reg, uint8_t value);
private:
uint8_t read_registers[16] = {0x00};
uint8_t write_registers[16] = {0x00};
uint8_t wr7_alt = 0x20;
bool enable_wr7_alt = false;
};
#endif /* Z85C30_H */