source/src/vm/pc6001/display.h

   1 /*
   2         NEC PC-6001 Emulator 'yaPC-6001'
   3
   4         Author : Takeda.Toshiya
   5         Date   : 2013.08.22-
   6
   7         [ joystick ]
   8 */
   9
  10 #ifndef _DISPLAY_H_
  11 #define _DISPLAY_H_
  12
  13 #include "../vm.h"
  14 #include "../../emu.h"
  15 #include "../device.h"
  16
  17 class MC6847;
  18 class TIMER;
  19
  20 class DISPLAY : public DEVICE
  21 {
  22 private:
  23         MC6847 *d_vdp;
  24         TIMER *d_timer;
  25
  26         uint8_t *ram_ptr;
  27         uint8_t *vram_ptr;
  28
  29         int tmp_vram_size;
  30 public:
  31         DISPLAY(VM_TEMPLATE* parent_vm, EMU* parent_emu) : DEVICE(parent_vm, parent_emu)
  32         {
  33                 set_device_name(_T("Display"));
  34         }
  35         ~DISPLAY() {}
  36
  37         // common functions
  38         void reset();
  39         void write_io8(uint32_t addr, uint32_t data);
  40         void decl_state();
  41         void save_state(FILEIO* state_fio);
  42         bool load_state(FILEIO* state_fio);
  43
  44         // unique functions
  45         void set_context_vdp(MC6847* device)
  46         {
  47                 d_vdp = device;
  48         }
  49         void set_vram_ptr(uint8_t* ptr)
  50         {
  51                 ram_ptr = vram_ptr = ptr;
  52         }
  53         void set_context_timer(TIMER* device)
  54         {
  55                 d_timer = device;
  56         }
  57         void draw_screen();
  58 };
  59 #endif