source/src/vm/tk80bs/keyboard.h

   1 /*
   2         NEC TK-80BS (COMPO BS/80) Emulator 'eTK-80BS'
   3         NEC TK-80 Emulator 'eTK-80'
   4         NEC TK-85 Emulator 'eTK-85'
   5
   6         Author : Takeda.Toshiya
   7         Date   : 2008.08.26 -
   8
   9         [ keyboard ]
  10 */
  11
  12 #ifndef _KEYBOARD_H_
  13 #define _KEYBOARD_H_
  14
  15 #include "../vm.h"
  16 #include "../../emu.h"
  17 #include "../device.h"
  18
  19 #define SIG_KEYBOARD_COLUMN     0
  20
  21 class KEYBOARD : public DEVICE
  22 {
  23 private:
  24 #if defined(_TK80BS)
  25         DEVICE *d_pio_b, *d_cpu;
  26
  27         uint8_t prev_type, prev_brk, prev_kana;
  28         bool kana_lock;
  29         uint32_t kb_type;
  30 #endif
  31
  32         DEVICE *d_pio_t;
  33         const uint8_t* key_stat;
  34
  35         uint32_t column;
  36
  37         void update_tk80();
  38
  39 public:
  40         KEYBOARD(VM* parent_vm, EMU* parent_emu) : DEVICE(parent_vm, parent_emu) {}
  41         ~KEYBOARD() {}
  42
  43         // common functions
  44         void initialize();
  45         void reset();
  46         void write_signal(int id, uint32_t data, uint32_t mask);
  47         uint32_t get_intr_ack();
  48 #if defined(_TK80BS)
  49         uint32_t read_signal(int ch)
  50         {
  51                 return kb_type & 3;
  52         }
  53 #endif
  54         void save_state(FILEIO* state_fio);
  55         bool load_state(FILEIO* state_fio);
  56
  57         // unique functions
  58 #if defined(_TK80BS)
  59         void set_context_pio_b(DEVICE* device)
  60         {
  61                 d_pio_b = device;
  62         }
  63         void set_context_cpu(DEVICE* device)
  64         {
  65                 d_cpu = device;
  66         }
  67 #endif
  68         void set_context_pio_t(DEVICE* device)
  69         {
  70                 d_pio_t = device;
  71         }
  72         void key_down(int code);
  73         void key_up(int code);
  74 };
  75
  76 #endif
  77