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CLK/Machines/Electron/Electron.hpp

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//
// Electron.hpp
// Clock Signal
//
// Created by Thomas Harte on 03/01/2016.
// Copyright © 2016 Thomas Harte. All rights reserved.
//
#ifndef Electron_hpp
#define Electron_hpp
#include "../../Processors/6502/CPU6502.hpp"
#include "../../Outputs/CRT.hpp"
#include "../../Outputs/Speaker.hpp"
#include <stdint.h>
#include "Atari2600Inputs.h"
namespace Electron {
enum ROMSlot: uint8_t {
ROMSlot0 = 0,
ROMSlot1, ROMSlot2, ROMSlot3,
ROMSlot4, ROMSlot5, ROMSlot6, ROMSlot7,
ROMSlotKeyboard = 8, ROMSlot9,
ROMSlotBASIC = 10, ROMSlot11,
ROMSlot12, ROMSlot13, ROMSlot14, ROMSlot15,
ROMSlotOS
};
enum Interrupt: uint8_t {
InterruptDisplayEnd = 0x04,
InterruptRealTimeClock = 0x08,
InterruptTransmitDataEmpty = 0x10,
InterruptReceiveDataFull = 0x20,
InterruptHighToneDetect = 0x40
};
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enum Key: uint16_t {
KeySpace = 0x0000 | 0x08, KeyCopy = 0x0000 | 0x02, KeyRight = 0x0000 | 0x01,
KeyDelete = 0x0010 | 0x08, KeyReturn = 0x0010 | 0x04, KeyDown = 0x0010 | 0x02, KeyLeft = 0x0010 | 0x01,
KeyColon = 0x0020 | 0x04, KeyUp = 0x0020 | 0x02, KeyMinus = 0x0020 | 0x01,
KeySlash = 0x0030 | 0x08, KeySemiColon = 0x0030 | 0x04, KeyP = 0x0030 | 0x02, Key0 = 0x0030 | 0x01,
KeyFullStop = 0x0040 | 0x08, KeyL = 0x0040 | 0x04, KeyO = 0x0040 | 0x02, Key9 = 0x0040 | 0x01,
KeyComma = 0x0050 | 0x08, KeyK = 0x0050 | 0x04, KeyI = 0x0050 | 0x02, Key8 = 0x0050 | 0x01,
KeyM = 0x0060 | 0x08, KeyJ = 0x0060 | 0x04, KeyU = 0x0060 | 0x02, Key7 = 0x0060 | 0x01,
KeyN = 0x0070 | 0x08, KeyH = 0x0070 | 0x04, KeyY = 0x0070 | 0x02, Key6 = 0x0070 | 0x01,
KeyB = 0x0080 | 0x08, KeyG = 0x0080 | 0x04, KeyT = 0x0080 | 0x02, Key5 = 0x0080 | 0x01,
KeyV = 0x0090 | 0x08, KeyF = 0x0090 | 0x04, KeyR = 0x0090 | 0x02, Key4 = 0x0090 | 0x01,
KeyC = 0x00a0 | 0x08, KeyD = 0x00a0 | 0x04, KeyE = 0x00a0 | 0x02, Key3 = 0x00a0 | 0x01,
KeyX = 0x00b0 | 0x08, KeyS = 0x00b0 | 0x04, KeyW = 0x00b0 | 0x02, Key2 = 0x00b0 | 0x01,
KeyZ = 0x00c0 | 0x08, KeyA = 0x00c0 | 0x04, KeyQ = 0x00c0 | 0x02, Key1 = 0x00c0 | 0x01,
KeyShift = 0x00d0 | 0x08, KeyControl = 0x00d0 | 0x04, KeyFunc = 0x00d0 | 0x02, KeyEscape = 0x00d0 | 0x01,
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KeyBreak = 0xffff
};
class Machine: public CPU6502::Processor<Machine> {
public:
Machine();
~Machine();
unsigned int perform_bus_operation(CPU6502::BusOperation operation, uint16_t address, uint8_t *value);
void set_rom(ROMSlot slot, size_t length, const uint8_t *data);
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void set_key_state(Key key, bool isPressed);
Outputs::CRT *get_crt() { return _crt; }
Outputs::Speaker *get_speaker() { return &_speaker; }
const char *get_signal_decoder();
private:
uint8_t _roms[16][16384];
uint8_t _os[16384], _ram[32768];
uint8_t _interruptStatus, _interruptControl;
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uint8_t _palette[16];
uint8_t _keyStates[14];
ROMSlot _activeRom;
uint8_t _screenMode;
uint16_t _screenModeBaseAddress;
Outputs::CRT *_crt;
int _frameCycles, _displayOutputPosition, _audioOutputPosition, _audioOutputPositionError;
uint16_t _startScreenAddress, _startLineAddress, _currentScreenAddress;
int _currentOutputLine;
uint8_t *_currentLine;
inline void update_display();
inline void update_audio();
inline void signal_interrupt(Interrupt interrupt);
inline void evaluate_interrupts();
class Speaker: public ::Outputs::Filter<Speaker> {
public:
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void set_divider(uint8_t divider);
void set_is_enabled(bool is_enabled);
inline bool get_is_enabled() { return _is_enabled; }
void get_samples(unsigned int number_of_samples, int16_t *target);
void skip_samples(unsigned int number_of_samples);
Speaker();
~Speaker();
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private:
unsigned int _counter;
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uint8_t _divider;
bool _is_enabled;
int16_t _output_level;
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// FILE *rawStream;
} _speaker;
};
}
#endif /* Electron_hpp */