DSP.hpp

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//
// Created by Melefo on 28/01/2020.
//
 
#ifndef COMSQUARE_DSP_HPP
#define COMSQUARE_DSP_HPP
 
#include <cstdint>
#include <SFML/Audio.hpp>
#include "../Memory/IMemory.hpp"
 
namespace ComSquare::APU::DSP
{
    struct Registers {
        uint8_t volL[8];
        uint8_t volR[8];
 
        uint8_t pitchL[8];
        uint8_t pitchH[8];
 
        uint8_t srcn[8];
 
        uint8_t adsr1[8];
        uint8_t adsr2[8];
        uint8_t gain[8];
        uint8_t envx[8];
        uint8_t outx[8];
 
        uint8_t mvolL;
        uint8_t mvolR;
 
        uint8_t evolL;
        uint8_t evolR;
 
        union {
            struct {
                bool kon7 : 1;
                bool kon6 : 1;
                bool kon5 : 1;
                bool kon4 : 1;
                bool kon3 : 1;
                bool kon2 : 1;
                bool kon1 : 1;
                bool kon0 : 1;
            };
            uint8_t kon;
        };
        union {
            struct {
                bool kof7 : 1;
                bool kof6 : 1;
                bool kof5 : 1;
                bool kof4 : 1;
                bool kof3 : 1;
                bool kof2 : 1;
                bool kof1 : 1;
                bool kof0 : 1;
            };
            uint8_t kof;
        };
 
        uint8_t flg;
 
        union {
            struct {
                bool endx7 : 1;
                bool endx6 : 1;
                bool endx5 : 1;
                bool endx4 : 1;
                bool endx3 : 1;
                bool endx2 : 1;
                bool endx1 : 1;
                bool endx0 : 1;
            };
            uint8_t endx;
        };
 
        uint8_t efb;
 
        uint8_t unused;
 
        union {
            struct {
                bool pmon7 : 1;
                bool pmon6 : 1;
                bool pmon5 : 1;
                bool pmon4 : 1;
                bool pmon3 : 1;
                bool pmon2 : 1;
                bool pmon1 : 1;
                bool __ : 1;
            };
            uint8_t pmon;
        };
 
        union {
            struct {
                bool non7 : 1;
                bool non6 : 1;
                bool non5 : 1;
                bool non4 : 1;
                bool non3 : 1;
                bool non2 : 1;
                bool non1 : 1;
                bool non0 : 1;
            };
            uint8_t non;
        };
        union {
            struct {
                bool eon7 : 1;
                bool eon6 : 1;
                bool eon5 : 1;
                bool eon4 : 1;
                bool eon3 : 1;
                bool eon2 : 1;
                bool eon1 : 1;
                bool eon0 : 1;
            };
            uint8_t eon;
        };
        uint8_t dir;
 
        uint8_t esa;
        uint8_t edl;
        uint8_t coeff[8];
    };
 
    class DSP : public Memory::IMemory {
    private:
        Registers _registers{};
 
        sf::Sound _channels[8];
 
        sf::SoundBuffer _soundBuffer;
    public:
        explicit DSP();
 
        uint8_t read(uint24_t addr) override;
        void write(uint24_t addr, uint8_t data) override;
    };
}
 
#endif //COMSQUARE_DSP_HPP