mirror of
https://github.com/TomHarte/CLK.git
synced 2024-08-16 16:28:59 +00:00
126 lines
3.8 KiB
C++
126 lines
3.8 KiB
C++
//
|
|
// 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
|
|
};
|
|
|
|
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,
|
|
|
|
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);
|
|
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;
|
|
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:
|
|
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();
|
|
|
|
private:
|
|
unsigned int _counter;
|
|
uint8_t _divider;
|
|
bool _is_enabled;
|
|
int16_t _output_level;
|
|
|
|
// FILE *rawStream;
|
|
|
|
} _speaker;
|
|
};
|
|
|
|
}
|
|
|
|
#endif /* Electron_hpp */
|