source/src/vm/x1/memory.h

   1 /*
   2         SHARP X1 Emulator 'eX1'
   3         SHARP X1twin Emulator 'eX1twin'
   4         SHARP X1turbo Emulator 'eX1turbo'
   5         SHARP X1turboZ Emulator 'eX1turboZ'
   6
   7         Author : Takeda.Toshiya
   8         Date   : 2009.03.14-
   9
  10         [ memory ]
  11 */
  12
  13 #ifndef _X1_MEMORY_H_
  14 #define _X1_MEMORY_H_
  15
  16 #include "../vm.h"
  17 #include "../../emu.h"
  18 #include "../device.h"
  19
  20 class X1_MEMORY : public DEVICE
  21 {
  22 private:
  23 #ifdef _X1TURBO_FEATURE
  24         DEVICE *d_pio;
  25 #endif
  26
  27         uint8_t* wbank[16];
  28         uint8_t* rbank[16];
  29
  30         uint8_t rom[0x8000];
  31         uint8_t ram[0x10000];
  32         uint8_t romsel;
  33 #ifdef _X1TURBO_FEATURE
  34         uint8_t extram[0x90000]; // 32kb*16bank
  35         uint8_t bank;
  36 #else
  37         int m1_cycle;
  38 #endif
  39         void update_map();
  40
  41 public:
  42         X1_MEMORY(VM_TEMPLATE* parent_vm, EMU* parent_emu) : DEVICE(parent_vm, parent_emu)
  43         {
  44                 set_device_name(_T("Memory Bus"));
  45         }
  46         ~X1_MEMORY() {}
  47
  48         // common functions
  49         void initialize();
  50         void reset();
  51         void write_data8(uint32_t addr, uint32_t data);
  52         uint32_t read_data8(uint32_t addr);
  53 #ifndef _X1TURBO_FEATURE
  54         uint32_t fetch_op(uint32_t addr, int *wait);
  55 #endif
  56         void write_io8(uint32_t addr, uint32_t data);
  57         uint32_t read_io8(uint32_t addr);
  58         bool process_state(FILEIO* state_fio, bool loading);
  59
  60         // unique function
  61 #ifdef _X1TURBO_FEATURE
  62         void set_context_pio(DEVICE* device)
  63         {
  64                 d_pio = device;
  65         }
  66 #endif
  67 };
  68
  69 #endif
  70