source/src/vm/n5200/memory.h

   1 /*
   2         NEC N5200 Emulator 'eN5200'
   3
   4         Author : Takeda.Toshiya
   5         Date   : 2009.06.03-
   6
   7         [ memory ]
   8 */
   9
  10 #ifndef _N5200_MEMORY_H_
  11 #define _N5200_MEMORY_H_
  12
  13 #include "../vm.h"
  14 #include "../../emu.h"
  15 #include "../device.h"
  16
  17 class N5200_MEMORY : public DEVICE
  18 {
  19 private:
  20         uint8_t* rbank[8192];   // 16MB / 2KB
  21         uint8_t* wbank[8192];
  22         uint8_t wdmy[0x800];
  23         uint8_t rdmy[0x800];
  24
  25         uint8_t ram[0xc0000];           // RAM 768KB
  26         uint8_t exram[0x100000];                // Ext RAM 1MB
  27         uint8_t vram[0x60000];          // VRAM 384KB ???
  28         uint8_t tvram[0x7800];          // TVRAM 32KB ???
  29         uint8_t backup[0x8200];         // Battery BackUp 32KB ???
  30         uint8_t ipl[0x10000];           // IPL 64KB
  31
  32         bool protect;
  33
  34 public:
  35         N5200_MEMORY(VM_TEMPLATE* parent_vm, EMU* parent_emu) : DEVICE(parent_vm, parent_emu)
  36         {
  37                 set_device_name(_T("Memory Bus"));
  38         }
  39         ~N5200_MEMORY() {}
  40
  41         // common functions
  42         void initialize();
  43         void release();
  44         void reset();
  45         void write_data8(uint32_t addr, uint32_t data);
  46         uint32_t read_data8(uint32_t addr);
  47         void write_io8(uint32_t addr, uint32_t data);
  48         uint32_t read_io8(uint32_t addr);
  49
  50         // unique functions
  51         uint8_t* get_vram()
  52         {
  53                 return vram;
  54         }
  55         uint8_t* get_tvram()
  56         {
  57                 return tvram;
  58         }
  59 };
  60
  61 #endif
  62