source/src/vm/fmtowns/bios.h

   1 /*
   2         FUJITSU FMR-30 Emulator 'eFMR-30'
   3         FUJITSU FMR-50 Emulator 'eFMR-50'
   4         FUJITSU FMR-60 Emulator 'eFMR-60'
   5
   6         Author : Takeda.Toshiya
   7         Date   : 2008.10.06 -
   8
   9         [ bios ]
  10 */
  11
  12 #ifndef _BIOS_H_
  13 #define _BIOS_H_
  14
  15 #include "../vm.h"
  16 #include "../../emu.h"
  17 #include "../device.h"
  18
  19 class DISK;
  20
  21 class BIOS : public DEVICE
  22 {
  23 private:
  24         DEVICE *d_mem, *d_io;
  25         DISK *disk[MAX_DRIVE];
  26
  27         // pseudo bios
  28         uint8_t *cmos, *vram, *cvram;
  29 #ifdef _FMR60
  30         uint8_t *avram;
  31 #else
  32         uint8_t *kvram;
  33 #endif
  34         int secnum, timeout;
  35
  36         // disk bios
  37         bool access_fdd[MAX_DRIVE], access_scsi;
  38         int scsi_blocks[MAX_SCSI];
  39
  40 public:
  41         BIOS(VM_TEMPLATE* parent_vm, EMU* parent_emu) : DEVICE(parent_vm, parent_emu) {
  42                 set_device_name(_T("PSEUDO BIOS"));
  43         }
  44         ~BIOS() {}
  45
  46         // common functions
  47         void initialize();
  48         void reset();
  49         void event_frame();
  50         bool bios_call_i86(uint32_t PC, uint16_t regs[], uint16_t sregs[], int32_t* ZeroFlag, int32_t* CarryFlag);
  51         bool bios_int_i86(int intnum, uint16_t regs[], uint16_t sregs[], int32_t* ZeroFlag, int32_t* CarryFlag);
  52         uint32_t read_signal(int ch);
  53         void save_state(FILEIO* state_fio);
  54         bool load_state(FILEIO* state_fio);
  55
  56         // unique functions
  57         void set_context_mem(DEVICE* device)
  58         {
  59                 d_mem = device;
  60         }
  61         void set_context_io(DEVICE* device)
  62         {
  63                 d_io = device;
  64         }
  65         void set_disk_handler(int drv, DISK* dsk)
  66         {
  67                 disk[drv] = dsk;
  68         }
  69         void set_cmos_ptr(uint8_t* ptr)
  70         {
  71                 cmos = ptr;
  72         }
  73         void set_vram_ptr(uint8_t* ptr)
  74         {
  75                 vram = ptr;
  76         }
  77         void set_cvram_ptr(uint8_t* ptr)
  78         {
  79                 cvram = ptr;
  80         }
  81 #ifdef _FMR60
  82         void set_avram_ptr(uint8_t* ptr)
  83         {
  84                 avram = ptr;
  85         }
  86 #else
  87         void set_kvram_ptr(uint8_t* ptr)
  88         {
  89                 kvram = ptr;
  90         }
  91 #endif
  92 };
  93
  94 #endif
  95