source/src/vm/phc25/keyboard.cpp

   1 /*
   2         SANYO PHC-25 Emulator 'ePHC-25'
   3         SEIKO MAP-1010 Emulator 'eMAP-1010'
   4
   5         Author : Takeda.Toshiya
   6         Date   : 2010.08.03-
   7
   8         [ keyboard ]
   9 */
  10
  11 #include "keyboard.h"
  12
  13 #ifdef _MAP1010
  14 static const uint8_t key_map[0x50] = {
  15 /*
  16         7800:   Z       X       C       V       B       N       SPACE   M
  17         7808:   ,       .       /       _       TK0     TK-     TK+     ENTER
  18         7810:   A       S       D       F       G       H       J       K
  19         7818:   L       ;       :       ]       TK1     TK2     TK3     TK=
  20         7820:   Q       W       E       R       T       Y       U       I
  21         7828:   O       P       @       [       TK4     TK5     TK6     TK*
  22         7830:           3       4       5       6       7       8       9
  23         7838:   0       -       ^       \       DEL     TK7     TK8     TK9
  24         7840:   2               1               F1      F2      F3      F4
  25         7848:           LEFT    RIGHT   UP      DOWN                    TK/
  26 */
  27         0x5A, 0x58, 0x43, 0x56, 0x42, 0x4E, 0x20, 0x4D,
  28         0xBC, 0xBE, 0xBF, 0xE2, 0x60, 0x6D, 0x6B, 0x0D,
  29         0x41, 0x53, 0x44, 0x46, 0x47, 0x48, 0x4A, 0x4B,
  30         0x4C, 0xBB, 0xBA, 0xDD, 0x61, 0x62, 0x63, 0x00,
  31         0x51, 0x57, 0x45, 0x52, 0x54, 0x59, 0x55, 0x49,
  32         0x4F, 0x50, 0xC0, 0xDB, 0x64, 0x65, 0x66, 0x6A,
  33         0x00, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39,
  34         0x30, 0xBD, 0xDE, 0xDC, 0x2E, 0x67, 0x68, 0x69,
  35         0x32, 0x00, 0x31, 0x00, 0x70, 0x71, 0x72, 0x73,
  36         0x00, 0x25, 0x27, 0x26, 0x28, 0x00, 0x00, 0x6F
  37 };
  38 #else
  39 static const uint8_t key_map[10][8] = {
  40         {0x31, 0x57, 0x53, 0x58, 0x26, 0x2e, 0xba, 0x00},
  41         {0x1b, 0x51, 0x41, 0x5a, 0x28, 0x0d, 0xbb, 0xbf},
  42         {0x33, 0x52, 0x46, 0x56, 0x25, 0xde, 0xdb, 0x00},
  43         {0x32, 0x45, 0x44, 0x43, 0x27, 0xdc, 0xdd, 0x20},
  44         {0x35, 0x59, 0x48, 0x4e, 0x72, 0x30, 0x50, 0x00},
  45         {0x34, 0x54, 0x47, 0x42, 0x73, 0xbd, 0xc0, 0x00},
  46         {0x36, 0x55, 0x4a, 0x4d, 0x71, 0x39, 0x4f, 0x00},
  47         {0x37, 0x49, 0x4b, 0xbc, 0x70, 0x38, 0x4c, 0xbe},
  48         {0x00, 0x12, 0x10, 0x11, 0x00, 0xf0, 0x00, 0x00},
  49         {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}
  50 };
  51 #endif
  52
  53 void KEYBOARD::initialize()
  54 {
  55         key_stat = emu->get_key_buffer();
  56
  57         // register event to update the key status
  58         register_frame_event(this);
  59 }
  60
  61 void KEYBOARD::reset()
  62 {
  63 #ifdef _MAP1010
  64         kana_pressed = 0;
  65 #else
  66         memset(status, 0, sizeof(status));
  67 #endif
  68 }
  69
  70 uint32_t KEYBOARD::read_io8(uint32_t addr)
  71 {
  72 #ifdef _MAP1010
  73         // memory mapped i/o
  74         if(0x7800 <= addr && addr < 0x7850) {
  75                 return key_stat[key_map[addr - 0x7800]] ? 0 : 1;
  76         } else if(addr == 0x7850) {
  77                 // LSHIFT
  78                 return key_stat[0x10] ? 0 : 1;
  79         } else if(addr == 0x7851) {
  80                 // RSHIFT
  81                 return 1;
  82         } else if(addr == 0x7852) {
  83                 // CTRL
  84                 return key_stat[0x11] ? 0 : 1;
  85         } else if(addr == 0x7853) {
  86                 // GRAPH
  87                 return key_stat[0x12] ? 0 : 1;
  88         } else if(addr == 0x785c) {
  89                 // KANA
  90                 if(kana_pressed) {
  91                         kana_pressed--;
  92                         return 0;
  93                 }
  94                 return 1;
  95         }
  96         return 0xff;
  97 #else
  98         return ~status[addr & 0x0f];
  99 #endif
 100 }
 101
 102 void KEYBOARD::event_frame()
 103 {
 104 #ifdef _MAP1010
 105         if(!kana_pressed && key_stat[0x15]) {
 106                 kana_pressed = 4;
 107         }
 108 #else
 109         memset(status, 0, sizeof(status));
 110
 111         for(int i = 0; i < 10; i++) {
 112                 uint8_t val = 0;
 113                 for(int j = 0; j < 8; j++) {
 114                         val |= key_stat[key_map[i][j]] ? (1 << j) : 0;
 115                 }
 116                 status[i] = val;
 117         }
 118 #endif
 119 }
 120
 121 #define STATE_VERSION   1
 122
 123 bool KEYBOARD::process_state(FILEIO* state_fio, bool loading)
 124 {
 125         if(!state_fio->StateCheckUint32(STATE_VERSION)) {
 126                 return false;
 127         }
 128         if(!state_fio->StateCheckInt32(this_device_id)) {
 129                 return false;
 130         }
 131 #ifdef _MAP1010
 132         state_fio->StateInt32(kana_pressed);
 133 #else
 134         state_fio->StateBuffer(status, sizeof(status), 1);
 135 #endif
 136         return true;
 137 }