source/src/vm/phc20/memory.h

   1 /*
   2         SANYO PHC-20 Emulator 'ePHC-20'
   3
   4         Author : Takeda.Toshiya
   5         Date   : 2010.09.03-
   6
   7         [ memory ]
   8 */
   9
  10 #ifndef _PHC20_MEMORY_H_
  11 #define _PHC20_MEMORY_H_
  12
  13 #include "../vm.h"
  14 #include "../../emu.h"
  15 #include "../device.h"
  16
  17 #define SIG_MEMORY_SYSPORT      0
  18
  19 namespace PHC20 {
  20
  21 class MEMORY : public DEVICE
  22 {
  23 private:
  24         DEVICE *d_drec;
  25
  26         uint8_t rom[0x2000];
  27         uint8_t ram[0x1000];
  28         uint8_t vram[0x400];
  29
  30         uint8_t wdmy[0x400];
  31         uint8_t rdmy[0x400];
  32         uint8_t* wbank[64];
  33         uint8_t* rbank[64];
  34
  35         const uint8_t* key_stat;
  36         uint8_t status[9];
  37         uint8_t sysport;
  38
  39 public:
  40         MEMORY(VM_TEMPLATE* parent_vm, EMU* parent_emu) : DEVICE(parent_vm, parent_emu)
  41         {
  42                 set_device_name(_T("Memory Bus"));
  43         }
  44         ~MEMORY() {}
  45
  46         // common functions
  47         void initialize();
  48         void reset();
  49         void __FASTCALL write_data8(uint32_t addr, uint32_t data);
  50         uint32_t __FASTCALL read_data8(uint32_t addr);
  51         void event_frame();
  52         void __FASTCALL write_signal(int id, uint32_t data, uint32_t mask);
  53         bool process_state(FILEIO* state_fio, bool loading);
  54
  55         // unique functions
  56         void set_context_drec(DEVICE* device)
  57         {
  58                 d_drec = device;
  59         }
  60         uint8_t* get_vram()
  61         {
  62                 return vram;
  63         }
  64 };
  65
  66 }
  67 #endif
  68