source/src/vm/pasopia7/memory.h

   1 /*
   2         TOSHIBA PASOPIA 7 Emulator 'EmuPIA7'
   3
   4         Author : Takeda.Toshiya
   5         Date   : 2006.09.20 -
   6
   7         [ memory ]
   8 */
   9
  10 #ifndef _PASOPIA7_MEMORY_H_
  11 #define _PASOPIA7_MEMORY_H_
  12
  13 #include "../vm.h"
  14 #include "../../emu.h"
  15 #include "../device.h"
  16
  17 #define SIG_MEMORY_I8255_1_A    0
  18 #define SIG_MEMORY_I8255_1_B    1
  19 #define SIG_MEMORY_I8255_1_C    2
  20
  21 class PASOPIA7_MEMORY : public DEVICE
  22 {
  23 private:
  24         DEVICE *d_iobus, *d_pio0, *d_pio2;
  25
  26         uint8_t bios[0x4000];
  27         uint8_t basic[0x8000];
  28         uint8_t ram[0x10000];
  29         uint8_t vram[0x10000];  // blue, red, green + text, attribute
  30         uint8_t pal[0x10];
  31         uint8_t wdmy[0x1000];
  32         uint8_t rdmy[0x1000];
  33         uint8_t* wbank[16];
  34         uint8_t* rbank[16];
  35
  36         uint8_t mem_map, plane, attr_data, attr_latch;
  37         bool vram_sel, pal_sel, attr_wrap;
  38
  39         void update_memory_map();
  40
  41 public:
  42         PASOPIA7_MEMORY(VM_TEMPLATE* parent_vm, EMU* parent_emu) : DEVICE(parent_vm, parent_emu)
  43         {
  44                 set_device_name(_T("Memory Bus"));
  45         }
  46         ~PASOPIA7_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         void write_io8(uint32_t addr, uint32_t data);
  54         void write_signal(int id, uint32_t data, uint32_t mask);
  55         bool process_state(FILEIO* state_fio, bool loading);
  56
  57         // unique functions
  58         void set_context_iobus(DEVICE* device)
  59         {
  60                 d_iobus = device;
  61         }
  62         void set_context_pio0(DEVICE* device)
  63         {
  64                 d_pio0 = device;
  65         }
  66         void set_context_pio2(DEVICE* device)
  67         {
  68                 d_pio2 = device;
  69         }
  70         uint8_t* get_ram()
  71         {
  72                 return ram;
  73         }
  74         uint8_t* get_vram()
  75         {
  76                 return vram;
  77         }
  78         uint8_t* get_pal()
  79         {
  80                 return pal;
  81         }
  82 };
  83
  84 #endif
  85