hardware.hpp

#pragma once
 
namespace DSC
{
    enum class Engine 
    {
        Main, 
        Sub
    };
}
 
namespace DSC::Hardware
{       
    typedef short ExtendedPalette[256];
    
    int tellExtendedPaletteIndex(void* pal_offset);
    ExtendedPalette* tellExtendedPaletteBase(void* pal_offset);
 
    namespace MainEngine
    {
        inline static volatile unsigned int* const DISPCNT  = (volatile unsigned int* const)0x04000000;
        
        inline static short* const BgPalette  = (short* const)0x05000000;
        inline static short* const ObjPalette = (short* const)0x05000200;
        
        inline static short* const Oam        = (short* const)0x07000000;
        
        inline static short* const BgVram     = (short* const)0x06000000;
        inline static short* const ObjVram    = (short* const)0x06400000;
        
        ExtendedPalette* BgExtendedPalette();
        ExtendedPalette* ObjExtendedPalette();      
        
        ExtendedPalette* BgExtendedPalette(int index);
        ExtendedPalette* ObjExtendedPalette(int index);             
                
        
        void objEnable(int mapping_size, bool use_ext_palette=false);
        void objDisable();
        bool objIsEnabled();
        bool objIsExtPaletteEnabled();
        int objGetMappingSize();
    }
    
    namespace SubEngine
    {
        inline static volatile unsigned int* const DISPCNT  = (volatile unsigned int* const)0x04001000;
        
        inline static short* const BgPalette  = (short* const)0x05000400;
        inline static short* const ObjPalette = (short* const)0x05000600;
        
        inline static short* const Oam        = (short* const)0x07000400;
        
        inline static short* const BgVram     = (short* const)0x06200000;
        inline static short* const ObjVram    = (short* const)0x06600000;       
        
        ExtendedPalette* BgExtendedPalette();
        ExtendedPalette* ObjExtendedPalette();
        
        ExtendedPalette* BgExtendedPalette(int index);
        ExtendedPalette* ObjExtendedPalette(int index);
        
        void objEnable(int mapping_size, bool use_ext_palette=false);
        void objDisable();
        bool objIsEnabled();
        bool objIsExtPaletteEnabled();
        int objGetMappingSize();
    }   
    
    extern volatile char* const BanksReg;
        
    class VramBank
    {
    private:
        char bank_name; // 'A'..'I'             
        bool is_lcd = true;
        bool is_main = true;
        bool is_background = true;      
        bool is_vram = true;
        int ofs = 0;        
        
        char backup = 0;
    public:
        VramBank(char bank_name);
        
        VramBank& lcd();
        
        VramBank& main();
        VramBank& sub();
        
        VramBank& background();
        VramBank& sprite();
        
        VramBank& vram();
        VramBank& ext_palette();
        
        VramBank& slot(int slot_number);
                
        void config();
        
        void enable();
        void disable();
        bool is_enabled() const;
        
        VramBank& save_state();
        void restore();
        
        void* lcd_offset() const;
    };
    
}