65 lines
2.0 KiB
C++
65 lines
2.0 KiB
C++
/*
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epple2
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Copyright (C) 2008 by Christopher A. Mosher <cmosher01@gmail.com>
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY, without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef ADDRESSBUS_H
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#define ADDRESSBUS_H
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class Memory;
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class Keyboard;
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class VideoMode;
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class Paddles;
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class PaddleButtonStates;
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class SpeakerClicker;
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class CassetteIn;
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class CassetteOut;
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class Slots;
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class AddressBus
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{
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private:
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Memory& ram;
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Memory& rom;
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Keyboard& kbd;
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VideoMode& vid;
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Paddles& paddles;
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PaddleButtonStates& paddleButtonStates;
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SpeakerClicker& speaker;
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CassetteIn& cassetteIn;
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CassetteOut& cassetteOut;
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Slots& slts;
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unsigned char data; // this emulates the (floating) data bus
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public:
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AddressBus(Memory& ram, Memory& rom, Keyboard& kbd, VideoMode& vid, Paddles& paddles, PaddleButtonStates& paddleButtonStates, SpeakerClicker& speaker, CassetteIn& cassetteIn, CassetteOut& cassetteOut, Slots& slts);
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~AddressBus();
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unsigned char read(const unsigned short address);
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void write(const unsigned short address, const unsigned char d);
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unsigned char readSwitch(unsigned short address);
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void setD7(const bool set);
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void writeSwitch(unsigned short address);
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enum { MOTHERBOARD_RAM_BAS = 0x00000 } ;
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enum { MOTHERBOARD_RAM_LIM = 0x0C000 } ;
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enum { MOTHERBOARD_RAM_SIZ = MOTHERBOARD_RAM_LIM-MOTHERBOARD_RAM_BAS };
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enum { MOTHERBOARD_ROM_BAS = 0x0D000 } ;
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enum { MOTHERBOARD_ROM_LIM = 0x10000 } ;
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enum { MOTHERBOARD_ROM_SIZ = MOTHERBOARD_ROM_LIM-MOTHERBOARD_ROM_BAS } ;
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};
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#endif
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