source/src/vm/hd44102.h

   1 /*
   2         Skelton for retropc emulator
   3
   4         Origin : MAME
   5         Author : Takeda.Toshiya
   6         Date   : 2017.03.07-
   7
   8         [ HD44102 ]
   9 */
  10
  11 #ifndef _HD44102_H_
  12 #define _HD44102_H_
  13
  14 //#include "vm.h"
  15 //#include "../emu.h"
  16 #include "device.h"
  17
  18 //#define SIG_HD44102_CS2       0
  19
  20 class HD44102 : public DEVICE
  21 {
  22 private:
  23         uint8_t m_ram[4][50];            // display memory
  24
  25         uint8_t m_status;                // status register
  26         uint8_t m_output;                // output register
  27
  28 //      int m_cs2;                      // chip select
  29         int m_page;                     // display start page
  30         int m_x;                        // X address
  31         int m_y;                        // Y address
  32
  33 //      int m_sx;
  34 //      int m_sy;
  35         int _SCREEN_WIDTH;
  36         int _SCREEN_HEIGHT;
  37
  38         uint8_t status_r();
  39         void control_w(uint8_t data);
  40         uint8_t data_r();
  41         void data_w(uint8_t data);
  42         inline void count_up_or_down();
  43
  44 public:
  45         HD44102(VM* parent_vm, EMU* parent_emu) : DEVICE(parent_vm, parent_emu)
  46         {
  47                 _SCREEN_WIDTH = 192;
  48                 _SCREEN_HEIGHT = 64;
  49                 set_device_name(_T("HD44102 LCD Controller"));
  50         }
  51         ~HD44102() {}
  52
  53         // common functions
  54         void initialize();
  55         void reset();
  56 //      void write_signal(int id, uint32_t data, uint32_t mask);
  57         void save_state(FILEIO* state_fio);
  58         bool load_state(FILEIO* state_fio);
  59
  60         // unique functions
  61         uint8_t read(uint32_t offset);
  62         void write(uint32_t offset, uint8_t data);
  63         void screen_update(int m_sx, int m_sy, bool reverse);
  64 };
  65
  66 #endif